title: Update two updatepanels simultaneously together
body: <p>I have two ASP.NET AJAX UpdatePanels .
  there are two timers with diffrent intervals.
  is it possible to update two updatepanels simultaneously  together ?
  like multi thread application .
  each should be UpdatePanel Update in separate thread in one time.
  i wrote this code but second timer does not work :</p>
  
  <pre><code>&lt;asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"&gt;
      &lt;h2&gt;
          Welcome to ASP.NET!
      &lt;/h2&gt;
      &lt;p&gt;
          &lt;asp:ScriptManager ID="ScriptManager1" runat="server"&gt;
          &lt;/asp:ScriptManager&gt;
      &lt;/p&gt;
      &lt;asp:UpdatePanel ID="UpdatePanel1" runat="server"&gt;
          &lt;ContentTemplate&gt;
              &lt;asp:Label ID="Label1" runat="server" Text="Label"&gt;&lt;/asp:Label&gt;
          &lt;/ContentTemplate&gt;
      &lt;/asp:UpdatePanel&gt;
      &lt;asp:UpdatePanel ID="UpdatePanel2" runat="server"&gt;
          &lt;ContentTemplate&gt;
              &lt;asp:Label ID="Label2" runat="server" Text="Label"&gt;&lt;/asp:Label&gt;
          &lt;/ContentTemplate&gt;
      &lt;/asp:UpdatePanel&gt;
      &lt;asp:Timer ID="Timer1" runat="server" Interval="2000"&gt;
      &lt;/asp:Timer&gt;
      &lt;asp:Timer ID="Timer2" runat="server" Interval="2000"&gt;
      &lt;/asp:Timer&gt;
  &lt;/asp:Content&gt;
  </code></pre>
  
  <p>Behind Code :</p>
  
  <pre><code>  Protected Sub Timer1_Tick(sender As Object, e As System.EventArgs) Handles Timer1.Tick
              Label1.Text = Date.Now
          End Sub
  
          Protected Sub Timer2_Tick(sender As Object, e As System.EventArgs) Handles Timer2.Tick
              Label2.Text = Date.Now
          End Sub
  </code></pre>