摘要:GridView 的 CommandField 按鈕依欄位值設定顯示或隱藏
若 GridView 的每一列需要判斷欄位值來決定是否可編輯時，可以在 GridView 的 RowDataBound 事件中做判斷並設定按鈕的顯示或隱藏。
以下範例就判斷 IsEdit 這個欄位為 False 時，則將編輯鈕隱藏，不允許編輯該資料列。
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound 
Protected
Dim oRow As Data.DataRowView Dim oButton As LinkButton If e.Row.RowType = DataControlRowType.DataRow Then oRow = CType(e.Row.DataItem, Data.DataRowView) If oRow IsNot Nothing Then '若 IsEdit 欄位值為 False 時，則將編輯鈕隱藏 If Not CBool(oRow.Item("IsEdit")) Then '尋找編輯鈕 oButton = FindCommandFieldButton(e.Row.Cells(0), "Edit") If oButton IsNot Nothing Then oButton.Visible = False '將編輯鈕隱藏 End If End If End If End If 
End Sub ''' <summary> ''' 尋找指定 CommandName 的按鈕。 ''' </summary> 
Private Function FindCommandFieldButton(ByVal Cell As DataControlFieldCell, ByVal CommandName As String) As LinkButton 
Private Dim oControl As Control Dim oButton As LinkButton For Each oControl In Cell.Controls If TypeOf (oControl) Is LinkButton Then oButton = DirectCast(oControl, LinkButton) If CommandName.ToUpper() = oButton.CommandName.ToUpper() Then Return oButton End If End If Next Return Nothing 
End Function