how to get this config value from app.config?
<p>My friend has the following app.config. He wants to get the value of <code>address</code>. how to do it?</p>

<pre><code>&lt;configuration&gt;
    &lt;system.serviceModel&gt;
...
           &lt;client&gt;
            &lt;endpoint address="http://ldo:8080/LLService" binding="wsHttpBinding"
                bindingConfiguration="WSHttpBinding_ILLService" contract="LLServiceReference.ILLService"
                name="WSHttpBinding_ILLService"&gt;
                &lt;identity&gt;
                    &lt;userPrincipalName value="ggldoe@mail.com" /&gt;
                &lt;/identity&gt;
            &lt;/endpoint&gt;
        &lt;/client&gt;
    &lt;/system.serviceModel&gt;
...
&lt;/configuration&gt;
</code></pre>
