c# -> vb.net

[Sam]

Hi,
I've seen this kind of thing in C# quite often :
cbo.Validating += new CancelEventHandler(cbo_Validating);
what is the vb.net equivalent ?

Please don't send me to
http://www.developerfusion.com/utilities/convertcsharptovb.aspx
I've already tried this and it's not translating properly.

Thx

 

[Carlos J. Quintero [.NET MVP]]

That's the C# syntax to add an event handler to an event (Validating), which
requires a delegate (CancelEventHandler) which in turn requires a procedure
(cbo_Validating). In VB.NET you can use either:

- the WithEvents clause
- the AddHandler statement with AddressOf function.

--

Best regards,

Carlos J. Quintero

MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
You can code, design and document much faster.
Free resources for add-in developers:
http://www.mztools.com

 

[Arthur Dent]

Public Sub cbo_Validating(<...some args...>) Handles cbo.Validating
... do whatever you want...
End Sub

<...some args...> must be the proper signature for the particular event you
are handling (cboValidating, btnClick, txtChange, etc.).

 

[Guest]

The direct equivalent would be (it only makes sense from within a method):
Private Sub test()
AddHandler cbo.Validating, AddressOf cbo_Validating
End Sub

But the alternative that Arthur provided (using "Handles" & "WithEvents") is
more in the style of VB.

David Anton
www.tangiblesoftwaresolutions.com
Home of:
Instant C#: VB.NET to C# Converter
Instant VB: C# to VB.NET Converter
Instant J#: VB.NET to J# Converter