title: asp.net mvc: directly assign value to model inside razor view
body: <p>I have below snippet inside my Create razor View:</p>
  
  <pre><code>@Html.EditorFor(model =&gt; model.UnitPrice)
  </code></pre>
  
  <p>trying to directly set <code>UnitPrice</code> using statement like this:</p>
  
  <pre><code>@Model.UnitPrice = 100;
  </code></pre>
  
  <p>I got something like null pointer exception : <code>Object reference not set to an instance of an object.</code></p>
  
  <p>How can I assign constant value to a field before posting to create post method?</p>