Button1的Click事件:

    protected void Button1_Click(object sender, EventArgs e)
    {
        this.GridView1.DataBind();
    }

然后修改前台页面,在UpdatePanel中添加如下的属性:

            <Triggers>
                 <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
            </Triggers>

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