How do I change the type of control that is used in a .NET PropertyGrid

I have a Windows application that uses a .NET PropertyGrid control. Is it possible to change the type of control that is used for the value field of a property?

I would like to be able to use a RichTextBox to allow better formatting of the input value. Can this be done without creating a custom editor class?

From stackoverflow pmac

• I think what you are looking for is Custom Type Descriptors. You could read up a bit and get started here: http://www.codeproject.com/KB/miscctrl/bending_property.aspx

  I am not sure you can do any control you want, but that article got me started on propertygrids.

  From Geoffrey Chetwood

• You can control whether the PropertyGrid displays a simple edit box, a drop-down arrow, or an ellipsis control.

  Look up EditorAttribute, and follow it on from there. I did have a sample somewhere; I'll try to dig it out.

  From Roger Lipscombe

• To add your own custom editing when the user selects a property grid value you need to implement a class that derives from UITypeEditor. You then have the choice of showing just a small popup window below the property area or a full blown dialog box.

  What is nice is that you can reuse the existing implementations. So to add the ability to multiline edit a string you just do this...

  
          [Editor(typeof(MultilineStringEditor), typeof(UITypeEditor))]
          public override string Text
          {
              get { return _string; }
              set { _string = value; }
          }
  

  Another nice one they provide for you is the ability to edit an array of strings...

  
          [Editor("System.Windows.Forms.Design.StringArrayEditor, 
           System.Design, Version=2.0.0.0, 
           Culture=neutral, 
           PublicKeyToken=b03f5f7f11d50a3a", 
           typeof(UITypeEditor))]
          public string[] Lines
          {
              get { return _lines; }
              set { _lines = value; }
          }
  

  pmac : Thanks. That was perfect! One addition instead of typeof(UITypeEditor) you can use "System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" found that after some compile erros
  From Phil Wright