ASP.NET GridView ItemTemplate LinkBut​​ton支持JavaScript确认后的RowCommand

Question

给出以下GridView代码：

<asp:GridView ID="gvReq" runat="server" DataSourceID="objdsReq" >
  <Columns>
    <asp:TemplateField HeaderText="Control">
      <ItemTemplate>
        <asp:LinkButton ID="lbdelete" runat="server" CommandArgument='<%# Container.DataItemIndex %>' ForeColor="Red" CommandName="DeleteReq">Delete</asp:LinkButton>
      </ItemTemplate>
    </asp:TemplateField>  
  </Columns>
</asp:GridView>
<asp:ObjectDataSource ID="objdsReq" runat="server" SelectMethod="GetDataTable" >
  <%-- parameter list --%>
</asp:ObjectDataSource>

在RowDataBound事件中，添加了JavaScript代码：

Protected Sub gvReq_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvReq.RowDataBound
  If (e.Row.RowType = DataControlRowType.DataRow) Then
    Dim lbdelete As LinkButton = e.Row.Cells(DELETE_CELL).Controls.Item(1)
    lbdelete.Attributes.Add("onclick", "javascript:if(confirm('Are you sure you want to delete?')){return true}else{return false}")

JavaScript会触发，但RowCommand事件永远不会触发 - 我猜是因为它只是由JavaScript处理：

Protected Sub gvReq_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs) Handles gvReq.RowCommand
  Dim dataItemIndex As Integer = Convert.ToInt32(e.CommandArgument)
  Dim reqID As Integer = Convert.ToInt32(gvReq.DataKeys(dataItemIndex).Values(0))
  If e.CommandName = "DeleteReq" Then

管理层要求将JavaScript确认对话框放在那里。

现在，如果有人点击OK到JavaScript确认框，我该如何触发RowCommand事件处理程序？

Answer 1

您可以使用OnClientClick的{​​{1}}属性，而不是在LinkButton添加属性吗？

此外，您似乎还没有在网格视图上实际设置onrowcommand属性。

E.g：

rowdatabound

我相信javascript在回发链接按钮中扮演了重要角色，因此在行数据绑定中添加<asp:GridView ID="gvReq" runat="server" DataSourceID="objdsReq" OnRowCommand="gvReq_RowCommand"> <Columns> <asp:TemplateField HeaderText="Control"> <ItemTemplate> <asp:LinkButton ID="lbdelete" runat="server" CommandArgument='<%# Container.DataItemIndex %>' ForeColor="Red" CommandName="DeleteReq" OnClientClick="return confirm('Are you sure you want to delete?');" >Delete</asp:LinkButton> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> 会影响回发javascript。

另外，请查看这篇文章，了解一下这种方法，而不是使用默认的javascript确认：http://mattberseth.com/blog/2007/07/confirm_gridview_deletes_with.html

Answer 2

尝试将Button的CommandName更改为“Delete”

更新：

而不是

lbdelete.Attributes.Add("onclick", "javascript:if(confirm('Are you sure you want to delete?')){return true}else{return false}")

试

lbdelete.OnClientClick = "javascript:if(confirm('Are you sure you want to delete?')){return true;}else{return false;}"