title: MvxSpinner Binding Issue on Xamarin.Android MVVMCross
body: <p>Using Xamarin.Android with MVVMCross. When Select the value from MVXSpinner  that Not Binding to <code>SelectedYear</code> Property in the Model. When Load the page debugger comes in to <code>SelectedYear</code> Property, But When I select the value from spinner it want comes into <code>SelectedYear</code>. I haven't get any errors. Please Any one Advice me where I am wrong.</p>
  
  <p>Found Binding Issue on Output Window</p>
  
  <p>MvxBind:Warning:228.30 Failed to create target binding for binding SelectedItem for SelectedYear
  [0:] MvxBind:Warning:228.30 Failed to create target binding for binding SelectedItem for SelectedYear
  11-09 11:50:03.756 I/mono-stdout(32419): MvxBind:Warning:228.30 Failed to create target binding for binding SelectedItem for SelectedYear</p>
  
  <pre><code>   &lt;LinearLayout
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:background="#FFFFFF"
          android:orientation="vertical"
          android:layout_alignParentRight="true"
          android:layout_marginRight="50dp"&gt;
          &lt;TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="@string/Retread.Collection.UI.DroidPhone.DotYear"
              style="@style/LabelTextView" /&gt;
          &lt;MvxSpinner
              android:id="@+id/txtYear"
              android:layout_width="20dp"
              android:layout_height="wrap_content"
              android:overlapAnchor="false"
              local:MvxItemTemplate="@drawable/year_spinner"
              local:MvxDropDownItemTemplate="@drawable/year_spinnerdropdown"
              android:hint="@string/Retread.Collection.UI.DroidPhone.Year"
              local:MvxBind="ItemsSource Year;SelectedItem SelectedYear"
              style="@style/AppSpinnerStyle" /&gt;
  </code></pre>
  
  <p>Year_spinner.xml File below.</p>
  
  <pre><code>&lt;TextView xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:local="http://schemas.android.com/apk/res-auto"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:textSize="18dip"
          android:singleLine="true"
          android:textColor="#000000"
          local:MvxBind="Text DisplayYear"/&gt;
  </code></pre>
  
  <p>Year_spinnerdropdown.xml file Below.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:local="http://schemas.android.com/apk/res-auto"
      style="?android:attr/spinnerDropDownItemStyle"
      android:singleLine="true"
      android:background="#ffffff"
      android:layout_width="match_parent"
      android:layout_height="?android:attr/listPreferredItemHeight"
      android:ellipsize="marquee"
      local:MvxBind="Text DisplayYear" /&gt;
  </code></pre>
  
  <p>In View Model I have Following Properties. And In the Year Model I have a Property <code>DisplayYear</code>.</p>
  
  <pre><code> private List&lt;YearModel&gt; _Year;
              public List&lt;YearModel&gt; Year
              {
                  get
                  {
                      return _Year;
                  }
                  set
                  {
                      _Year = value;
                      RaisePropertyChanged(() =&gt; Year);
                  }
              }
  
         public YearModel SelectedYear
          {
              get
              {
                  return Model.SelectedYear;
              }
              set
              {
                  Model.SelectedYear = value;
                  RaisePropertyChanged(() =&gt; SelectedYear);
              }
          }
  </code></pre>