第一种直接在前台删除按钮上写代码
<asp:TemplateField HeaderText="操作" ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="lBtnUpdate" runat="server" CausesValidation="True"
CommandName="Update" Text="更新"></asp:LinkButton>
<asp:LinkButton ID="LBtnCancel" runat="server" CausesValidation="False"
CommandName="Cancel" Text="取消"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="LBtnEdit" runat="server" CausesValidation="False"
CommandName="Edit" Text="编辑"></asp:LinkButton>
<asp:LinkButton ID="LBtnDelete" runat="server" CausesValidation="False"
CommandName="Delete" Text="删除" OnClientClick="return confirm('是否删除当前行？');"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
第二种方法就是在后台GridView的RowDataBound方法中写入
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
//为按钮写入onlick方法都有几种写法，都是大同小异。
方法一：LinkButton deleteBtn = (LinkButton)e.Row.FindControl("LBtnDelete");
if (deleteBtn != null)
{
deleteBtn.Attributes.Add("onclick", "return confirm('请确定要删除所选的数据项吗？');");
}
方法二：((LinkButton)e.Row.Cells[4].Controls[3]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\"" + e.Row.Cells[0].Text + "\"吗?')");
方法三：((LinkButton)e.Row.Cells[4].FindControl("LBtnDelete")).Attributes.Add("onclick", "javascript:return confirm('你确认要删除：\"" + e.Row.Cells[0].Text + "\"吗?')");
}