ASP.NET的GridView ItemTemplate中的LinkBut​​ton支持RowCommand后的JavaScript确认 [英] ASP.NET GridView ItemTemplate LinkButton Support for RowCommand AFTER JavaScript Confirmation

问题描述

由于以下的GridView code：

Given the following GridView code:

<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，JavaScript的code增加：

In the RowDataBound event, JavaScript code is added:

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的火灾，但RowCommand事件永远不会火 - 我猜，因为它只是由JavaScript处理：

The JavaScript fires, but the RowCommand event will never fire - I'm guessing because it is only handled by the JavaScript:

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

JavaScript的确认对话框被管理放在那里通过的要求。

The JavaScript confirmation dialog was put there by requirement by Management.

现在，我该如何让RowCommand事件处理程序，如果有人点击确定来JavaScript的确认框火？

Now, how do I get the RowCommand Event Handler to fire if someone clicks OK to the JavaScript confirm box?

推荐答案

可以使用的的OnClientClick 属性的LinkBut​​ton 而不是增加对的RowDataBound ？

Can you use the OnClientClick attribute of the LinkButton instead of adding the attribute on rowdatabound?

此外，它似乎还没有真正建立在您的网格视图中的onrowcommand属性。

Also it appears you haven't actually set the onrowcommand attribute on your grid view.

例如：

<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>

我beleive了JavaScript起着回发了很大的作用的链接按钮，这样添加的OnClick 在该行数据绑定我会影响回发的javascript。

I beleive that javascript plays a large role in postback for a link button, so adding the OnClick in the row databound my be affecting the postback javascript.

另外，请查阅这篇文章出来这样做，而不是使用defaul JavaScript的confirm一个稍微票友的方式：的 http://mattberseth.com/blog/2007/07/confirm_gridview_deletes_with.html

Also check this article out for a slightly "fancier" way of doing this, instead of using the defaul javascript confirm: http://mattberseth.com/blog/2007/07/confirm_gridview_deletes_with.html

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