title: Get view from Resource Layout in xamarin or monodroid
body: <p>I try to get MapView from Resource Layout but it returns null:</p>
  
  <pre><code> var map_view = FindViewById&lt;MapView&gt;(Resource.Id.emap);
  </code></pre>
  
  <p>mylayout.xml like :</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/etklmap"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"&gt;
  &lt;Button
  android:id="@+id/zoomOutButton"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Zoom Out" /&gt;
  
  &lt;com.google.android.maps.MapView
     android:id="@+id/emap"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:apiKey="apikey" /&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>So is there any way to get view without calling <code>SetContentView(Resource.Layout.mylayout);</code></p>