更新面板的 asyncpostbacktrigger 是否可以有两个控件 ID？

Question

I have a button outside an update panel which controls an update panel very well. I also want another button to update this same update panel when the click event is triggered. How can I achieve this?

Answer 1

You can have multiple triggers registered to a single update panel. Something like the following should work:

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
  <ContentTemplate>
  </ContentTemplate>
  <Triggers>
    <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
    <asp:AsyncPostBackTrigger ControlID="Button2" EventName="Click" />
  </Triggers>
</asp:UpdatePanel>