C# 更新面板工作不正常

我将Gridview包装在更新面板中，并将触发器设置为搜索按钮，但它无法正常工作， 当我将文本放入文本框并单击“搜索”，然后gridview显示相关结果时，这没关系，但它应该在单击gridview的“选择”按钮时将列的文本加载到文本框中，该按钮在放入“更新”面板之前起作用，但现在不起作用。它既不会将文本加载到文本框中，也不会在单击搜索按钮后再次加载

代码：

找不到此输入的数据。再试一次。
受保护的无效网格视图\u SelectedIndexChanged（对象发送方，事件参数e）
{
GridViewRow行=gridViewComplaints.SelectedRow；
txtComplaintSubject.Text=行。单元格[2]。文本；
HiddenFieldComplaintID.Value=行。单元格[1]。文本；
int cid=转换为32（HiddenFieldComplaintID.Value）；
Response.Write（cid.ToString（））；
gridViewComplaints.Visible=false；
}

这就是我的工作方式。如果您可以尝试此代码：

<asp:UpdatePanel ID="UpdatePanel2" runat="server">
    <ContentTemplate>
        <asp:GridView ID="GridView1" class="gridview" OnRowCommand="EditGridData" runat="server"
            AutoGenerateColumns="False" CellPadding="4" GridLines="None" AllowPaging="True"
            OnPageIndexChanging="GrdState_PageIndexChanging" PageSize="20" EmptyDataText="Record is Not Available"
            Width="93%">
            <Columns>
                <asp:TemplateField HeaderText="Edit">
                    <ItemTemplate>
                        <asp:LinkButton ID="BtnEdit" runat="server" CausesValidation="false" class="black skin_colour round_all"
                            CommandArgument='<%# Eval("Country_ID")%>' CommandName="Edit1" ForeColor="#6699FF"
                            Font-Underline="True"> <span>Edit</span></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Delete">
                    <ItemTemplate>
                        <asp:LinkButton ID="BtnDelete" OnClientClick="return confirm('Are you sure want to delete?');"
                            CausesValidation="false" class="black skin_colour round_all " CommandArgument='<%# Eval("Country_ID")%>'
                            CommandName="Delete1" runat="server" ForeColor="#6699FF" Font-Underline="True"><span>Delete</span></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="View">
                    <ItemTemplate>
                        <asp:LinkButton ID="LBtnView" CausesValidation="false" class="black skin_colour round_all "
                            CommandArgument='<%# Eval("Country_ID")%>' CommandName="View1" runat="server"
                            ForeColor="#6699FF" Font-Underline="True"><span>View</span></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Country_Name" HeaderText="Country" />
                <asp:BoundField DataField="Description" Visible="false" HeaderText="Description" />
                <asp:TemplateField HeaderText="Description">
                    <ItemTemplate>
                        <div class="DisplayDiv">
                            <asp:Label ID="Label1" runat="server" CssClass="DisplayDesc" Text='<%# Eval("Description") %>'></asp:Label>
                        </div>
                    </ItemTemplate>
                </asp:TemplateField>

                <asp:BoundField DataField="CreationDate" HeaderText="Creation Date" DataFormatString="{0:dd/MM/yy}" />
            </Columns>
        </asp:GridView>
    </ContentTemplate>
</asp:UpdatePanel>

---

希望这能有所帮助。

您能解释一下您发布的代码中有什么是对此处出现的问题的答案，以便用户和未来的读者可以从中学习吗？

<asp:UpdatePanel ID="UpdatePanel2" runat="server">
    <ContentTemplate>
        <asp:GridView ID="GridView1" class="gridview" OnRowCommand="EditGridData" runat="server"
            AutoGenerateColumns="False" CellPadding="4" GridLines="None" AllowPaging="True"
            OnPageIndexChanging="GrdState_PageIndexChanging" PageSize="20" EmptyDataText="Record is Not Available"
            Width="93%">
            <Columns>
                <asp:TemplateField HeaderText="Edit">
                    <ItemTemplate>
                        <asp:LinkButton ID="BtnEdit" runat="server" CausesValidation="false" class="black skin_colour round_all"
                            CommandArgument='<%# Eval("Country_ID")%>' CommandName="Edit1" ForeColor="#6699FF"
                            Font-Underline="True"> <span>Edit</span></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Delete">
                    <ItemTemplate>
                        <asp:LinkButton ID="BtnDelete" OnClientClick="return confirm('Are you sure want to delete?');"
                            CausesValidation="false" class="black skin_colour round_all " CommandArgument='<%# Eval("Country_ID")%>'
                            CommandName="Delete1" runat="server" ForeColor="#6699FF" Font-Underline="True"><span>Delete</span></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="View">
                    <ItemTemplate>
                        <asp:LinkButton ID="LBtnView" CausesValidation="false" class="black skin_colour round_all "
                            CommandArgument='<%# Eval("Country_ID")%>' CommandName="View1" runat="server"
                            ForeColor="#6699FF" Font-Underline="True"><span>View</span></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Country_Name" HeaderText="Country" />
                <asp:BoundField DataField="Description" Visible="false" HeaderText="Description" />
                <asp:TemplateField HeaderText="Description">
                    <ItemTemplate>
                        <div class="DisplayDiv">
                            <asp:Label ID="Label1" runat="server" CssClass="DisplayDesc" Text='<%# Eval("Description") %>'></asp:Label>
                        </div>
                    </ItemTemplate>
                </asp:TemplateField>

                <asp:BoundField DataField="CreationDate" HeaderText="Creation Date" DataFormatString="{0:dd/MM/yy}" />
            </Columns>
        </asp:GridView>
    </ContentTemplate>
</asp:UpdatePanel>

public void EditGridData(object sender, GridViewCommandEventArgs e)
    {
        int i = Convert.ToInt32(e.CommandArgument);
        Session["Country_ID"] = i;

        if (e.CommandName == "Edit1")
        {
            SortedList sl = new SortedList();
            sl.Add("@mode", "GetRows1");
            sl.Add("@Country_ID", i);
            SqlDataReader dr = emp.GetDataReaderSP("CountryMaster1", sl);
            while (dr.Read())
            {
                txtCountry.Text = dr["Country_Name"].ToString();
                txtDesc.Text = dr["Description"].ToString();
                ViewState["Country_Name"] = dr["Country_Name"].ToString();
                BtnSubmit.Visible = true;
                BtnSubmit.Text = "Update";
            }
        }

        if (e.CommandName == "View1")
        {
            SortedList sl = new SortedList();
            sl.Add("@mode", "GetRows1");
            sl.Add("@Country_ID", i);
            SqlDataReader dr = emp.GetDataReaderSP("CountryMaster1", sl);
            while (dr.Read())
            {
                txtCountry.Text = dr["Country_Name"].ToString();
                txtDesc.Text = dr["Description"].ToString();
                ViewState["Country_Name"] = dr["Country_Name"].ToString();

                BtnReset.Visible = true;
                BtnSubmit.Visible = false;
            }
        }


        if (e.CommandName == "Delete1")
        {
            SortedList sl = new SortedList();
            sl.Add("@mode", "DeleteData");
            sl.Add("@Country_ID", i);

            emp.ExecuteNonQuerySP("CountryMaster1", sl);
            Label1.Visible = true;
            Label1.Text = "Record Deleted Successfully…";
            BindGrid();
        }

    }