Checking for nothing

[John]

Hi

How can I check a variable for Nothing?

Thanks

Regards

 

[rowe_newsgroups]

Hi

How can I check a variable for Nothing?

Thanks

Regards

if variable is nothing then
MessageBox.Show("Gasp!")
end if

Thanks,

Seth Rowe

 

[Duracel]

If myVariable Is Nothing Then

End If

If myVariable IsNot Nothing Then

End If

If Not myVariable Is Nothing Then

End If

 

[Guest]

If foo is a reference type:
"If foo Is Nothing Then"

If foo is a value type:
"If foo = Nothing Then"
Note that for value types, the check for equality with Nothing just checks
whether the value is the default value for the value type.
--
David Anton
www.tangiblesoftwaresolutions.com
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