GridView

取得GridView的某項目值
Dim index As Integer = CType(CType(sender, LinkButton).Parent.Parent, GridViewRow).RowIndex
Dim lb_gp_no As LinkButton = CType(GridView1.Rows(index).FindControl("LBT0_GP_NO"), LinkButton)


在UpdatePanel下觸發 GridView中的控制項  (參考網站)
頁面使用UpdatePanel狀態下，會加入以下Code 使之可以PostBack
</ContentTemplate>
        <Triggers>           
                <asp:PostBackTrigger ControlID="But_addFileUp" />       
        </Triggers>
 </asp:UpdatePanel>

若要按下的控制項是在GridView中，則無法寫在<Triggers>中
解決方法：

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load

    Me.RegisterPostBackControl()

End Sub

Private Sub RegisterPostBackControl()

    For Each row As GridViewRow In GridView1.Rows

        Dim lnkFull As LinkButton = TryCast(row.FindControl("lnkFull"), LinkButton)

        ScriptManager.GetCurrent(Me).RegisterPostBackControl(lnkFull)

    Next

End Sub

GridView BoundField、TemplateField 千分位
在BoundField之下    DataFormatString="{0:N0}"
在TemplateField之下
'<%# string.Format("{0:N0}",Eval("Qty")) %>'
或
'<%# Eval("Qty","{0:N0}") %>'
以上設定僅千分位，不會有小數點之設定

GridView在footer加上總計欄位 參考網站
Protected Sub GridView1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.PreRender
        Dim footer As GridViewRow = New GridViewRow(-1, -1, DataControlRowType.Footer, DataControlRowState.Normal)
        Dim dtc0 As TableCell = New TableCell()
        Dim dtc1 As TableCell = New TableCell()
        Dim dt As DataTable = New DataTable()
        Dim dv As DataView = New DataView()
        Dim iCount As Integer = 0
        Dim iPercent As Integer = 0
        dv = CType(SqlDataSource1.Select(DataSourceSelectArguments.Empty), DataView) 'Get DataView
        dt = dv.ToTable()
        iCount = Convert.ToInt32(dt.Compute("sum(subtotal)", ""))
        iPercent = Convert.ToInt32(dt.Compute("sum(subtotal)", ""))
        dtc0.Text = "總計"
        dtc1.Text = iCount.ToString()
        footer.Controls.Add(dtc0)
        footer.Controls.Add(dtc1)
        GridView1.Controls(0).Controls.AddAt(GridView1.Controls(0).Controls.Count - 1, footer)
    End Sub