在Gridview's Row bounbounevent中查找ButtonField

本文关键字：bounbounevent 查找 ButtonField Row Gridview | 更新日期: 2023-09-27 18:19:00

这是我的内联代码:

<asp:GridView ID="GrdVacation" runat="server" DataKeyNames="ID" AutoGenerateColumns="False">
  <Columns>
   <asp:TemplateField HeaderText="S.No">
               <HeaderTemplate>
               Sno</HeaderTemplate>
               <ItemTemplate>
               <%#Container.DataItemIndex + 1%>
               </ItemTemplateField>
   </asp:TemplateField>
   <asp:BoundField HeaderText="Badge No" DataField="EmpBadge" />
   <asp:BoundField HeaderText="Last Vacation Date" DataField="LastVacDate" DataFormatString="{0:dd-MMM-yyyy}" />
   <asp:BoundField HeaderText="Vacation Expiry Date" DataField="VacValidity" DataFormatString="{0:dd-MMM-yyyy}" />
   <asp:BoundField HeaderText="Vacation Start Date" DataField="VacStartDate" DataFormatString="{0:dd-MMM-yyyy}" />
   <asp:BoundField HeaderText="Vacation End Date" DataField="VacEndDate" DataFormatString="{0:dd-MMM-yyyy}" />
   <asp:BoundField HeaderText="13 Salary Request" DataField="E13SalRequest" />
   <asp:ButtonField ButtonType="Image" CommandName="select" HeaderText="Edit" ImageUrl="~/images/Edit.png"></asp:ButtonField>
</Columns>
</asp:GridView>

我即将在GridView RowDataBound事件的某些条件下改变buttonfield的图像URL。

Code what i have been far，

   Protected Sub GrdVacation_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GrdVacation.RowDataBound
    If (e.Row.RowType = DataControlRowType.DataRow) Then
    Dim NM = CType(e.Row.Cells(0).Controls(7), ImageButton)
     if(true) Then
        NM.ImageURL="somepath"
     End If

当指定的参数超出有效值范围时，我得到异常。

在Gridview's Row bounbounevent中查找ButtonField

变化

Dim NM = CType(e.Row.Cells(0).Controls(7), ImageButton)


Dim NM = CType(e.Row.Cells(7).Controls(0), ImageButton)

: 

Protected Sub GrdVacation_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GrdVacation.RowDataBound
    If (e.Row.RowType = DataControlRowType.DataRow) Then
    //// Dim NM = CType(e.Row.Cells(0).Controls(7), ImageButton)
    Dim NM = CType(e.Row.Cells(7).Controls(0), ImageButton)

     if(true) Then
        NM.ImageURL="somepath"
     End If
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