C# 如何使用GridView中的DropDownList更新此字段？_C#_Asp.net_Sql Server_Gridview

C# 如何使用GridView中的DropDownList更新此字段？

c# asp.net sql-server gridview

C# 如何使用GridView中的DropDownList更新此字段？,c#,asp.net,sql-server,gridview,C#,Asp.net,Sql Server,Gridview,我有以下数据库设计： Employee Table: --------------- Username, Name, JobTitle, BadgeNo, IsActive, DivisionCode Divisions Table: ---------------- SapCode, DivisionShortcut <asp:TemplateField HeaderText="Division"> <

我有以下数据库设计：

Employee Table: 
---------------
Username, Name, JobTitle, BadgeNo, IsActive, DivisionCode 


Divisions Table:    
----------------
SapCode, DivisionShortcut

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

我有一个GridView，我正在使用它添加、删除和更新/编辑员工信息。此信息是员工用户名、姓名、徽章号、职务头衔、IsActive（来自员工表）和Division快捷方式（来自Divisions表）。部门将在DropDownList中列出。分区将在GridView中作为下拉列表列出，并在编辑模式下显示。我现在正在努力通过这个下拉列表更新员工的部门。我编写了代码，但出现以下错误： *

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

列名“快捷方式”无效

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

ASP.NET代码：

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

    //For editing any row in the GridView
        protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) 
        {
            GridView1.EditIndex = e.NewEditIndex;
        }

    //For updating the information in any row in the GridView
        protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            GridViewRow gvrow = GridView1.Rows[e.RowIndex];

            DropDownList DivisionsList = (DropDownList)gvrow.FindControl("DivisionsList"); 

            TextBox txtEmployeeName = (TextBox)gvrow.FindControl("txtEmployeeName");
            TextBox txtJobTitle = (TextBox)gvrow.FindControl("txtJobTitle");
            TextBox txtBadgeNo = (TextBox)gvrow.FindControl("txtBadgeNo");

            CheckBox isActive = (CheckBox)gvrow.FindControl("isActive");

            //For getting the ID (primary key) of that row
            string username = GridView1.DataKeys[e.RowIndex].Value.ToString();

            string name = txtEmployeeName.Text;
            string jobTitle = txtJobTitle.Text;
            string badgeNo = txtBadgeNo.Text;
            string division = DivisionsList.SelectedValue.ToString();

            UpdateEmployeeInfo(username, name, jobTitle, badgeNo, division);
        }
private void UpdateEmployeeInfo(string username, string name, string jobTitle, string badgeNo, string division)
    {
        string connString = ConfigurationManager.ConnectionStrings["UsersInfoDBConnectionString"].ConnectionString;
        SqlConnection conn = new SqlConnection(connString);
        string update = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                                                BadgeNo = @BadgeNo, DivisionShortcut = @division
                            WHERE Username = @Username";
        SqlCommand cmd = new SqlCommand(update, conn);

        cmd.Parameters.AddWithValue("@Name", name);
        cmd.Parameters.AddWithValue("@JobTitle", jobTitle);
        cmd.Parameters.AddWithValue("@BadgeNo", badgeNo);
        cmd.Parameters.AddWithValue("@division", division);
        cmd.Parameters.AddWithValue("@Username", username);
        //cmd.Parameters.AddWithValue("@IsActive", isActive.checked);

        try
        {
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();

            GridView1.EditIndex = -1;
            //            SqlDataSource1.UpdateCommand = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
            //                                                BadgeNo = @BadgeNo 
            //                                                WHERE Username = @Username";
            //            SqlDataSource1.Update();
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            cmd.Dispose();
            conn.Close();
            conn.Dispose();
        }
        GridView1.DataBind();
    }

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

那么，我怎样才能通过DropDownList更新员工的部门呢

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

更新：

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

我更新了UpdateEmployeeInfo（）方法，但仍然得到相同的错误

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

更新代码：

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

private void UpdateEmployeeInfo(string username, string name, string jobTitle, string badgeNo, string division)
    {
        string connString = ConfigurationManager.ConnectionStrings["UsersInfoDBConnectionString"].ConnectionString;
        SqlConnection conn = new SqlConnection(connString);
        string update = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                            BadgeNo = @BadgeNo WHERE Username = @Username; 
                            UPDATE Divisions SET [DivisionShortcut] = @division WHERE SapCode = @SapCode;";

        SqlCommand cmd = new SqlCommand(update, conn);

        cmd.Parameters.AddWithValue("@Name", name);
        cmd.Parameters.AddWithValue("@JobTitle", jobTitle);
        cmd.Parameters.AddWithValue("@BadgeNo", badgeNo);
        cmd.Parameters.AddWithValue("@division", division);
        cmd.Parameters.AddWithValue("@Username", username);
        //cmd.Parameters.AddWithValue("@IsActive", isActive.checked);

        try
        {
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();

            GridView1.EditIndex = -1;
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            cmd.Dispose();
            conn.Close();
            conn.Dispose();
        }
        GridView1.DataBind();
    }

我看到的是您正在使用UpdateEmployeeInfomethode来更新Employee表的列以及Division表的列，但是在那个sql查询中，您只提到了Employee表，这就是为什么您会出现此错误，因为DivisionShortcut不是Employee表的一部分

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>

根据我的理解，您应该使用分区代码代替分区快捷方式

并为您的下拉列表设置AutoPostBack=“True”

您能帮我吗？因为我试图修改我的代码，如更新的问题所示，但仍然不起作用。@TechLover根据我的理解，您应该使用DivisionCode代替DivisionShortcut@TechLover保持这样的代码，它将工作您必须为您的下拉列表设置AutoPostBack=“True”，否则它不会接受所选的值。试试这个，让我知道不，它不起作用。我仍然面临@SapCode的问题。

            <asp:TemplateField HeaderText="Division">
                <ItemTemplate>
                    <%# Eval("DivisionShortcut")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                        DataTextField="DivisionShortcut" DataValueField="SapCode"></asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                SortExpression="Username" />

            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <%# Eval("Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Job Title">
                <ItemTemplate>
                    <%# Eval("JobTitle")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Badge No.">
                <ItemTemplate>
                    <%# Eval("BadgeNo")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Is Active?">
                <ItemTemplate>
                    <%# Eval("IsActive")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="isActive" runat="server" 
                                  Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                </EditItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Delete?">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure to Delete the record?')">
                        <asp:LinkButton ID="lnkB" runat="Server" Text="Delete" CommandName="Delete"></asp:LinkButton>
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

        SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                        FROM         dbo.Divisions INNER JOIN
                                    dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
        UpdateCommand="UPDATE [employee], [Divisions] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                            [BadgeNo] = @BadgeNo, [DivisionShortcut] = @division WHERE [Username] = @Username"
        DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
        <UpdateParameters>
            <asp:Parameter Name="Name" Type="String"  />
            <asp:Parameter Name="JobTitle" Type="String" />
            <asp:Parameter Name="BadgeNo" Type="String" />
            <asp:Parameter Name="DivisionShortcut" Type="String" />
            <asp:Parameter Name="Username" Type="String" />
        </UpdateParameters>
        <DeleteParameters>
            <asp:Parameter Name="Username" Type="String" />
        </DeleteParameters>
    </asp:SqlDataSource>