Appconfig return null value
<p>Before post my question here,i tried google it and followed different way they suggested still i couldn't able to figure ,here is the simple thing am trying</p>

<p>this is my app config file</p>

<pre><code> &lt;?xml version="1.0" encoding="utf-8" ?&gt;
&lt;configuration&gt;
    &lt;system.serviceModel&gt;
        --some code here
    &lt;/system.serviceModel&gt;
    &lt;appSettings&gt;
        &lt;add key="ServerAddress" value="11.0.0.1" /&gt;
        &lt;add key="Port" value="" /&gt;
        &lt;add key="Sender" value="" /&gt;
        &lt;add key="SenderPassword" value="" /&gt;
        &lt;add key="Subject" value="" /&gt;
        &lt;add key="AttachmentPath" value="" /&gt;
        &lt;add key="Body" value="" /&gt;
    &lt;/appSettings&gt;

&lt;/configuration&gt;
</code></pre>

<p>Am trying to read this value in my method like below</p>

<pre><code>string ftpserverIp = System.Configuration.ConfigurationManager.AppSettings["ServerAddress"];
</code></pre>

<p>but ftpserverIp value is shows alway null here,some one please correct me what am missing.</p>
