如何从 UpdatePanel 中的按钮强制完全回发?

您可以使用 Triggers 属性的 UpdatePanel 以注册触发完整回发的操作.

You can use the Triggers property of the UpdatePanel to register actions that trigger a full postback.

向其添加 PostBackTrigger 对象属性，包含需要触发完整回发的控件的 ControlID.

Add a PostBackTrigger object to that property, containig the ControlID of the control which needs to trigger a full postback.

<asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
        ...
    </ContentTemplate>
    <Triggers>
        <asp:PostBackTrigger ControlID="myFullPostBackControlID" />
    </Triggers>
</asp:UpdatePanel>