how to use controls in nested master page?
<p>In my main Master page i have:</p>

<pre><code>&lt;html&gt;
&lt;head runat="server"&gt;
    &lt;title&gt;Master Page&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;form runat="server"&gt;
    &lt;div&gt;
    &lt;table cellpadding="0" cellspacing="0" style="width: 100%"&gt;
    &lt;tr&gt;
    &lt;td align="center"&gt;
       &lt;img src="images/download.jpg" alt="manipallogo" /&gt;
    &lt;/td&gt;
    &lt;td align="center" valign="middle"&gt;
       &lt;h2 style="font-style:normal;font-size:x-large"&gt;Mobility Sanjivini&lt;/h2&gt;
    &lt;/td&gt;
    &lt;td align="center"&gt;
       &lt;img src="images/philips.jpg" alt="philipslogo" 
                            height="84" width="170" /&gt;
    &lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
    &lt;td colspan="1"&gt;
        &lt;asp:ContentPlaceHolder runat="server" ID="cntplace1"&gt;
        &lt;/asp:ContentPlaceHolder&gt;
    &lt;/td&gt;
    &lt;td colspan="2"&gt;
    &lt;asp:ContentPlaceHolder runat="server" ID="ContentPlaceHolder2"&gt;
    &lt;/asp:ContentPlaceHolder&gt;
    &lt;/td&gt;
    &lt;/tr&gt;


    &lt;/table&gt;
    &lt;/div&gt;
    &lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>Nested Masted Page:</p>

<pre><code>&lt;asp:Content ID="Content1" ContentPlaceHolderID="cntplace1" Runat="Server"&gt;
    &lt;table width="100%"&gt;
        &lt;tr&gt; 
        &lt;td&gt;
           &lt;asp:Label runat="server" ID="lblImmu" Text="Immunization Details"&gt;
           &lt;/asp:Label&gt;
        &lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
        &lt;td&gt;
           &lt;asp:Label runat="server" ID="lblDel" Text="Immunization Details"&gt;   
           &lt;/asp:Label&gt;
        &lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
        &lt;td&gt;
           &lt;asp:Label runat="server" ID="lblMal" Text="Immunization Details"&gt;
           &lt;/asp:Label&gt;
        &lt;/td&gt;
        &lt;/tr&gt;
    &lt;/table&gt;
&lt;/asp:Content&gt;
</code></pre>

<p>but When i run, Nested page Labels are not displayed. Please someone tell me where i am going wrong. </p>
