C# keyword default(T) to VB.net

  • Thread starter Thread starter Eric Cathell
  • Start date Start date
E

Eric Cathell

I can not find the answer for this anywhere. What is the keyword in VB.net
that matches the default(T) generics keywork in vb.net?

C#
return ID == null || ID.Equals(default(IdT));

vb.net
Return ((ID Is Nothing) Or ID.Equals(default(idt)))

default expects and expression.

Thanks.
 
Eric Cathell said:
I can not find the answer for this anywhere. What is the keyword in VB.net
that matches the default(T) generics keywork in vb.net?
Click to expand...

'Nothing'.
 
Eric,
As Herfried stated, its "Nothing"

| C#
| return ID == null || ID.Equals(default(IdT));
|
| vb.net
Return ((ID Is Nothing) Or ID.Equals(Nothing))

NOTE: The above assumes that you have an IEquatable constraint on ID!


If you don't have the constraint, I would define a temporary variable & pass
that:

Dim [default] As idt
Return ((ID Is Nothing) Or ID.Equals([default]))

Which implies you could write a generic method:

Public Function [Default](Of T)() As T
Return Nothing
End Function

Return ((ID Is Nothing) Or ID.Equals([Default](Of idt)()))

--
Hope this helps
Jay B. Harlow [MVP - Outlook]
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net


|I can not find the answer for this anywhere. What is the keyword in VB.net
| that matches the default(T) generics keywork in vb.net?
|
| C#
| return ID == null || ID.Equals(default(IdT));
|
| vb.net
| Return ((ID Is Nothing) Or ID.Equals(default(idt)))
|
| default expects and expression.
|
| Thanks.
|
|
 
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