Home / Community & Support / Developer Productivity Tools Forums / Open Source Projects > Code Converter > Adding of EventHandler fails to convert properly C#->VB

• Emanuel Varga MVP

  Posted on Oct 14, 2010 (permalink)

  Hello,
  
  I was wondering what would be the downside of converting c# event assignments:
  

  radButton1.Click += radButton1_Click;

  to:
  

  AddHandler radButton1.Click, AddressOf radButton1_click

  
  But from VB to C# it is working just fine.... why?
  
  Lately I've started to use the converter a lot, in order to provide solutions to people in both C# and vb, and because of the fact that the forum does not allow for uploading files I'm creating all the code in the examples by hand.
  
  It's always a pain having to convert all of the event handlers by hand....
  
  Best Regards,
  Emanuel Varga

  Reply

• Todd Anglin Master

  Posted on Oct 25, 2010 (permalink)

  This is actually a limit of the underlying NRefactory engine that powers the Code Converter. I suggest you request this support on the SharpDevelop forums: http://community.sharpdevelop.net/tags/nrefactory/default.aspx. You can further test the NRefactory engine using the simple converter provided by the core team: http://codeconverter.sharpdevelop.net/SnippetConverter.aspx.
  
  I'm not entirely sure why the core engine can convert in one direction and not other. If I had to guess, I would say the language shortcut in C# is too ambiguous. That is, "+=" can be used for a number of things in C#, such as concatenating strings or incrementing values, so it's not "guaranteed" to be an event handler. In VB, though, the explicit AddHandler can more reliably be converted.
  
  Hopefully a solution will be available soon to save you the manual steps! Sorry for the trouble.
  
  -Todd

  Reply

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