C# 如何从GridView隐藏主键，但仍引用它

我有一个GridView，它是根据Linq查询构建的，如下所示

var GridViewLoad = from d in QVuser.QlikViewDashboards.AsEnumerable()
     join p in tempPermissions.AsEnumerable() on d.DashboardId equals Convert.ToInt32(p["DashboardId"])
     where  Convert.ToInt32(p["UserId"]) == GridViewUser
     select new 
     {
         DashboardId = d.DashboardId,
         PermissionId = Convert.ToInt32(p["PermissionId"]),
         DashboardName = d.DashboardName,
         Operational_Unit = p["Operational_Unit"].ToString(),
         Cost_Centre = p["Cost_Centre"].ToString(),
         Project = p["Project"].ToString(),
         Fund = p["Fund"].ToString()
     };

GridView1.DataSource = GridViewLoad; 
GridView1.DataKeyNames = new string[] {"PermissionId"};
GridView1.DataBind();

然后，GridView被定义为：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" 
    GridLines="Vertical" ShowHeaderWhenEmpty="True" OnRowDeleting="GridView1_RowDeleting"
        style="text-align: center" BackColor="White" BorderColor="#999999" 
    BorderStyle="None" BorderWidth="1px" Width="550px" 
   >
<AlternatingRowStyle BackColor="#DCDCDC" />
<Columns>
    <asp:TemplateField HeaderText="Delete" ShowHeader="False">
        <ItemTemplate>
            <asp:LinkButton ID="DeleteButton" runat="server" CausesValidation="false" 
                CommandArgument='<%# Eval("PermissionId") %>' CommandName="Delete" Text="Delete"></asp:LinkButton>
        </ItemTemplate>
    </asp:TemplateField>
    <asp:BoundField DataField="PermissionId" HeaderText="ID"/>
    <asp:BoundField DataField="DashboardName" HeaderText="Dashboard" ReadOnly="True" SortExpression="DashboardName" />
    <asp:BoundField DataField="Operational_Unit" HeaderText="Operational_Unit" ReadOnly="True" SortExpression="Operational_Unit" />
    <asp:BoundField DataField="Cost_Centre" HeaderText="Cost_Centre" ReadOnly="True" SortExpression="Cost_Centre" />
    <asp:BoundField DataField="Fund" HeaderText="Fund" ReadOnly="True" SortExpression="Fund" />
    <asp:BoundField DataField="Project" HeaderText="Project" ReadOnly="True" SortExpression="Project" />

</Columns>
<FooterStyle BackColor="#CCCCCC" ForeColor="Black" BorderStyle="Solid" />
<HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
<RowStyle BackColor="#EEEEEE" ForeColor="Black" BorderStyle="Solid" 
    BorderWidth="1px" />
<SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F1F1F1" />
<SortedAscendingHeaderStyle BackColor="#0000A9" />
<SortedDescendingCellStyle BackColor="#CAC9C9" />
<SortedDescendingHeaderStyle BackColor="#000065" />

我想做的是隐藏PermissionId字段，但它显然仍然需要存在，才能让Delete按钮正常工作

有人能帮我解决这个问题吗

我尝试设置Visible=“false”，这会隐藏它，但我的删除按钮停止工作

为你的帮助干杯

试试看

<asp:BoundField DataField="PermissionId" HeaderText="ID" Visible="False"/>

试试看

---

既然您正在设置

数据键名

，您应该能够从被删除行的索引中检索权限ID，如下所示：

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    int permissionId = (int)GridView1.DataKeys[e.RowIndex].Value;

    DoDelete(permissionId);
}

---

无论列是否可见，这都应该起作用。

因为您正在设置

DataKeyNames

，您应该能够从被删除行的索引中检索权限ID，如下所示：

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    int permissionId = (int)GridView1.DataKeys[e.RowIndex].Value;

    DoDelete(permissionId);
}

---

无论列是否可见，这都应该起作用。

实际上，从我看到的情况来看，它应该起作用，就像KaeL所说的，也许你应该发布删除按钮的代码。我记得我需要在GridView的onRowDatabound方法中处理commandArguments的传递，以便在onRowCommand方法中，delete按钮将id作为其参数。实际上，从我看到的情况来看，它应该可以工作，就像KaeL所说的，也许您应该发布delete按钮的代码。我记得我需要在GridView的onRowDatabound方法中处理commandArguments的传递，以便在onRowCommand方法中，delete按钮将id作为其参数