vb.net - Gridview 显示和隐藏特定列

Question

我有一个 gridview，其中有一个特定的列 Date。我已将列的 Visible 属性设置为 false，因为我想在不同的页面条件下显示。请告诉我如何使用 vb.net 来让我的 Date 列在运行时显示或隐藏

更新

我当前的代码是

   If Not Page.User.Identity.Name = "bilal" Then
            GridView1.AutoGenerateEditButton = False

            GridView2.AutoGenerateEditButton = False
            GridView3.AutoGenerateEditButton = False
        Else
            GridView1.AutoGenerateEditButton = True
            GridView1.AutoGenerateColumns = True

            GridView1.DataBind()
            If GridView1.Columns.Count > 0 Then
                'assuming your date-column is the first '
                GridView1.Columns(3).Visible = True
            Else
                GridView1.HeaderRow.Cells(0).Visible = False
                For Each gvr As GridViewRow In GridView1.Rows
                    gvr.Cells(0).Visible = True
                Next
            End If



            GridView2.AutoGenerateEditButton = True
            GridView3.AutoGenerateEditButton = True

        End If

Answer 1

如果您已将 AutoGenerateColumns 设置为 True，则 Column-Count 将为 0，然后您需要循环行并显示/隐藏适当的单元格。否则，您可以使用 Visible 属性。

GridView1.DataBind()
If GridView1.Columns.Count > 0 Then
    'assuming your date-column is the 4.'
    GridView1.Columns(3).Visible = True
Else
    GridView1.HeaderRow.Cells(3).Visible = False
    For Each gvr As GridViewRow In GridView1.Rows
        gvr.Cells(3).Visible = True
    Next
End If