如何在同一gridview中的Button的click事件中设置GridView中label的文本值

Question

我在gridview中有一个按钮和一个无界标签（用于库存量级别标记）。（其他列有界）。当我单击按钮时，我希望显示“已点击的行”的标签：根据情况有库存或无货。但是现在ALL ROWS的All标签都显示相同的东西。

单击按钮事件中的代码将检查数量（条件）级别，并且工作正常。我还能够从RowDataBound的gridview中找到标签，并基于数量条件设置text属性，但是无法让此标签和text属性仅在单击的行中显示。

Private Sub CartGrid_RowDataBound(sender As Object, e As GridViewRowEventArgs) Handles CartGrid.RowDataBound

 If (e.Row.RowType = DataControlRowType.DataRow) Then
        If ProdQtyInStock = 0 Then
            Dim lblCartQtyMsg As Label = CType(e.Row.FindControl("lblCartQtyMsg"), Label)
            lblCartQtyMsg.Text = "Out of Stock"

        End If
    End If
 End Sub

我希望标签仅显示在单击按钮的行中。 这是按钮单击事件的代码：

Protected Sub btninc_Click(ByVal sender As Object, ByVal e As  System.EventArgs)

    Dim PlusButton As Button = DirectCast(sender, Button)
    Dim Row As GridViewRow = DirectCast(PlusButton.Parent.Parent, GridViewRow)
    Dim productid As String =     CartGrid.DataKeys(Row.RowIndex).Value.ToString
    Dim lblcartSize As Label = CType(Row.FindControl("lblcartSize"), Label)
    Dim lblcartcolor As Label = CType(Row.FindControl("lblcartColor"), Label)
    Dim lblCartQty As Label = CType(Row.FindControl("LblCartQty"), Label)
    Dim cartQty As String
    If lblcartSize.Text.ToString = "NIL" And lblcartcolor.Text.ToString = "NIL" Then
        Dim colorid, sizeid As Integer
        sizeid = 1
        colorid = 1
        ProdQtyInStock = ShoppingCart.StockQtyChecker(productid, sizeid, colorid)
      If ProdQtyInStock = 1 Then
            ShoppingCart.UpdateQtyIncreament(productid, sizeid, colorid)
      ElseIf ProdQtyInStock = 0 Then
            ' show lblCartQtyMsg.Text = "Out of Stock"

        End If
        ' bindShoppingCart()
        ReCalculateShippingCost()
     Else
        Dim colorid, sizeid As Integer
        colorid = ShoppingCart.GetColorIDforProdCartDelete(productid, lblcartcolor.Text.ToString).colorid
        sizeid = ShoppingCart.GetSizeIDforProdCartDelete(productid, lblcartSize.Text.ToString).sizeid

        ProdQtyInStock = ShoppingCart.StockQtyChecker(productid, sizeid, colorid)

        If ProdQtyInStock = 1 Then
            ShoppingCart.UpdateQtyIncreament(productid, sizeid, colorid)
        ElseIf ProdQtyInStock = 0 Then

            'at show lblCartQtyMsg.Text = "Out of Stock"

        End If

        '' bindShoppingCart()
        ReCalculateShippingCost()

    End If

    cartQty = lblCartQty.Text

End Sub

这是按钮的html：

<ItemTemplate>
            <asp:Button ID="btnIncreameant" runat="server"     CausesValidation="false" CommandName="Increament"
                 Text="+"   OnClick ="btninc_Click"  Font-Bold="True"     style="background-color:#fff; border :solid 1px #ccc"  />
        </ItemTemplate>

这是此刻购物车的样子。