title: How to add EventToCommand in XAML
body: <p>I use Mvvm light(wpf45).</p>
  
  <p>I want add EventToCommand in XAML, I use this </p>
  
  <pre><code>xmlns:cmd ="http://www.galasoft.ch/mvvmlight"
  xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
  </code></pre>
  
  <p>but don't add EventToCommand </p>
  
  <pre><code>&lt;Button&gt;
    &lt;i:Interaction.Triggers&gt;
      &lt;i:EventTrigger EventName="Click"&gt;
       &lt;cmd:EventToCommand/&gt;
      &lt;/i:EventTrigger&gt;
    &lt;/i:Interaction.Triggers&gt;
  &lt;/Button&gt;
  </code></pre>
  
  <p>i get error in <code>&lt;cmd:EventToCommand/&gt;</code></p>