title: Both Updatepanel's getting update, while only 1 have to work
body: <p>Simple Ajax program needs to update single update panel on a button click does both.
  Here is the updated code,</p>
  
  <pre><code>    &lt;asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" ChildrenAsTriggers="false"
              runat="server"&gt;
              &lt;ContentTemplate&gt;
                  &lt;fieldset style="width: 30%"&gt;
                      &lt;legend&gt;Panel - 1 &lt;/legend&gt;
                      &lt;asp:Label ID="label1" runat="server"&gt;&lt;/asp:Label&gt;
                      &lt;asp:Button ID="b1" runat="server" OnClick="both" Text="Update Both Pannels" /&gt;
                      &lt;asp:Button ID="b2" runat="server" OnClick="one" Text="Update Single Pannel" /&gt;
                  &lt;/fieldset&gt;
              &lt;/ContentTemplate&gt;
              &lt;Triggers&gt;
                  &lt;asp:AsyncPostBackTrigger ControlID="b1" EventName="Click" /&gt;
              &lt;/Triggers&gt;
          &lt;/asp:UpdatePanel&gt;
          &lt;asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="true" UpdateMode="Conditional"&gt;
              &lt;ContentTemplate&gt;
                  &lt;fieldset style="width: 30%"&gt;
                      &lt;legend&gt;Panel - 2 &lt;/legend&gt;
                      &lt;asp:Label ID="label2" runat="server"&gt;&lt;/asp:Label&gt;
                  &lt;/fieldset&gt;
              &lt;/ContentTemplate&gt;
              &lt;Triggers&gt;
                  &lt;asp:AsyncPostBackTrigger ControlID="b2" EventName="Click" /&gt;
              &lt;/Triggers&gt;
          &lt;/asp:UpdatePanel&gt;
  </code></pre>
  
  <p>Button Click events are as follows,</p>
  
  <pre><code>protected void both(object sender, EventArgs e)
  {
      label1.Text = DateTime.Now.ToLongTimeString();
      label2.Text = DateTime.Now.ToLongTimeString();
      UpdatePanel2.Update();
  
  }
  protected void one(object sender, EventArgs e)
  {
      label1.Text = DateTime.Now.ToLongTimeString();
      label2.Text = DateTime.Now.ToLongTimeString();
      UpdatePanel2.Update();
  }
  </code></pre>
  
  <p>The output remains same..Thanks in advance...</p>