gridview激发了未处理的事件RowDeleting

.aspx
<asp:TemplateField HeaderText="删除">
<ItemTemplate>
<asp:ImageButton ID="imgBtnDelete" runat="server"
CommandArgument=' <%#eval_r("TeacherNum")%>'
CommandName="del"
ImageUrl="~/delete.gif"
OnClientClick="javascript:return confirm('确定删除吗?')" />
</ItemTemplate>
</asp:TemplateField>
 
注意这个CommandName这个属性。当初我将其设置为：CommandName="delete",弹出“gridview激发了未处理的事件“RowDeleting””。因为CommandName="delete",在删除时会触发“未处理的RowDeleting”。
改一个名字就好了，比如"del"。
 
.cs
   
  
       protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            string num = e.CommandArgument.ToString();  教师编号
            switch (e.CommandName)
            {
                case "del":
                    TeacherBLL.DeleteTeacher(num);
                    Bind();
                    break;
            }
        }

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