title: asp-for tag helper functionality
body: <p>I know that <code>asp-for</code> tag helper for an <code>&lt;input&gt;</code> sets the <code>name</code> attribute, so that it can be bound to model class. e.g. <code>asp-for="Movie.Year"</code> when retrieving data from a POST request...</p>
  
  <p>In another scenario (probably GET request): does <code>asp-for</code> also extract each <code>&lt;input&gt;</code>s value from the model class instance and fill the <code>value</code> attribute based on it after instantiation through the PageModel-derived class.</p>
  
  <p>e.g.</p>
  
  <pre><code>&lt;input asp-for="Movie.Price" class="form-control" /&gt;
  </code></pre>