ASP.NET AJAX UpdatePanel 嵌套 UpdatePanel问题

Question

本帖最后由 feiguohaixia 于 2010-03-19 12:53:11 编辑

Answer 1

次序改一下,三个时间,一个不动,一个2秒动,一个五秒动:
在Page_Load事件中,对Label1,Label2赋时间!!
c#代码:
    protected void Page_Load(object sender, EventArgs e)
    {
        if (IsPostBack)
        {
            Label1.Text = DateTime.Now.ToString();
            Label2.Text = DateTime.Now.ToString();
        }
    }html代码:
<asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
       <ContentTemplate>
          <asp:Button ID="Button1" runat="server" Text="Button" />
          <%= DateTime.Now.ToString() %><br />
          <asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
             <ContentTemplate>
                <asp:Label ID="Label1" runat="server" Text=""></asp:Label>
                <br />
                <asp:Timer ID="Timer1" runat="server" Interval="2000" OnTick="Timer1_Tick">
                </asp:Timer>
              </ContentTemplate>
            </asp:UpdatePanel>           <asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Conditional">
               <ContentTemplate>
                   <asp:Label ID="Label2" runat="server" Text=""></asp:Label>
                   <br />
               <asp:Timer ID="Timer2" runat="server" Interval="5000" OnTick="Timer2_Tick">
                </asp:Timer>
                </ContentTemplate>
                <Triggers>
                   <asp:AsyncPostBackTrigger ControlID="Timer2" EventName="Tick" />
                </Triggers>
            </asp:UpdatePanel>
          </ContentTemplate>
         <Triggers>
             <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
         </Triggers>
</asp:UpdatePanel>