SyntaxBoxControl.dragDrop event doesn't work

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create an instance of Alsing.Windows.Forms.SyntaxBoxControl _syntaxBox:
 Alsing.Windows.Forms.SyntaxBoxControl _syntaxBox = new Alsing.Windows.Forms.SyntaxBoxControl();
2. Add eventhandlers:
  _syntaxBox.DragDrop += new DragEventHandler(_syntaxBox_DragDrop);
            _syntaxBox.DragEnter += new DragEventHandler(_syntaxBox_DragEnter);
            _syntaxBox.AllowDrop = true;
3. Events doesn't trigger



What is the expected output? What do you see instead?
I want to use the event to drag pre-defined code snippets from another control. 

What version of the product are you using? On what operating system?



Please provide any additional information below.
I can drag and drop the data to another control, so the code to "start" the 
drag works fine.

Original issue reported on code.google.com by jacsteen...@gmail.com on 16 Feb 2011 at 9:02