我的查找控件未在gridview项模板中找到标签，有什么主意我该如何解决？

Question

I am trying to attach a value to a label on my gridview using the same technique that I have used many times, even in this very page, but the find control isn't finding the label. Does anyone know why this might be? From the research that I've done I've come across some instances where having 2 labels in one item template causes this problem but in some cases, it doesn't.

Gridview:

<asp:TemplateField>
                    <ItemTemplate>
                        <asp:Label ID="lblStockDetailsS" runat="server"></asp:Label>
                        <asp:Label ID="lbl7" runat="server" Text="hello"></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>

Code behind:

Label lblSD = (Label)e.Row.FindControl("lblStockDetailsS");
        lblSD.Text = Sline.StockDetailsS;

Label lblSD2 = (Label)e.Row.FindControl("lbl7");
        lblSD2.Text = Sline.NLocalStock;

Answer 1

• The RowDataBound event will trigger on every rows in the grid.
• You have check whether the current row is header or data row before finding the controls which is available in the data row.

• Have your code block inside this condition.

  if(e.Row.RowType == DataControlRowType.DataRow)

Ref: https://techpattarai.com/findcontrol-onrowdatabound-csharp/

Thanks