title: C#.Net inherit from a child of Web.UI.Page
body: <p>I'm trying to build a basic abstract class for all my master's content pages:</p>
  
  <pre><code>/// &lt;summary&gt;
  /// Basic class for Show pages
  /// &lt;/summary&gt;
  public abstract partial class BasicShowForm : System.Web.UI.Page
  {
      /// &lt;summary&gt;
      /// The project currently showing in the master
      /// &lt;/summary&gt;
      public Project project;
  
      protected void Page_Load(object sender, EventArgs e)
      {
          //get the master that currently running
          this.project = ((ShowMaster)Master).Project;
      }    
  }
  </code></pre>
  
  <p>but when i'm trying to extend it in a new page it can't find the class:</p>
  
  <p><img src="https://i.stack.imgur.com/si40n.png" alt="enter image description here"></p>
  
  <p>What do i need to do i order to make it work ?</p>