根據null列值突出顯示gridview行

Question

我想根據它在數據庫上的值突出顯示gridview行。有一個列名簽出。如果列為NULL，則行的背景色為紅色。如果有值，則背景色為藍色。到目前為止，這是我嘗試過的。謝謝

Sub barapp_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)

    If e.Row.RowType = DataControlRowType.DataRow Then

        If e.Row.DataItem("CheckOut") Is Nothing Then


            e.Row.BackColor = Drawing.Color.Red
        End If

    End If

Answer 1

嘗試這個。 我不知道VB的確切語法，但我希望這會指導您。

Sub barapp_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)

If e.Row.RowType = DataControlRowType.DataRow Then

   Dim rowView = (DataRowView)e.Row.DataItem;
   Dim CheckOut = rowView["CheckOut"].ToString();

    If CheckOut Is Nothing Then
        e.Row.BackColor = Drawing.Color.Red

    End If

End If