删除gridview中的行时发生异常 [英] exception while deleting a row in gridview

问题描述

当我从datalist中选择行时，我的Gridview3运行良好。但是，删除行时，我得到以下异常\

。

My Gridview3 works well when I select rows from datalist. However I get the following exception \
while deleting a row.

"Must be non-negative and less than the size of the collection"

我的代码：

My code:

<asp:gridview ID="GridView3" runat="server" ShowFooter="true" AutoGenerateColumns="false"  OnRowDeleting="GridView3_RowDeleting" >
            <Columns>

            <asp:CommandField ShowDeleteButton="True"  />

protected void GridView3_RowDeleting(Object sender, GridViewDeleteEventArgs e)
  {
      GridView3.DeleteRow((int)GridView3.DataKeys[e.RowIndex].Values[0]);
      GridView3.DataBind();
  }

任何人都可以指导我吗？

谢谢。

Can anyone guide me ?
Thanks.

推荐答案

您应该设置 DataKeyNames 属性。

在您的代码中，您还需要检查以确保该集合包含元素。 />


欲了解更多信息，请查看： SOF



我希望这会对你有所帮助。

You should set the DataKeyNames property.
On your code you also need to check to make sure the collection contains elements.

For more info check this : SOF

I hope this will help to you.

检查

[e.RowIndex-1]

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