Vb net isnothing does not work

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I am writing a very elementary bunch of vb net code, which is basically :

VB

Dim hsProd as Hashtable = Nothing

if not IsNothing (hsProd) then 
' do some stuff
end if

I happen to always enter the "do some stuff" code .... why ?

What I have tried:

if not (hsProd is nothing) then.....

if isnothing (hsProd) = false then .....

if hsProd isnot nothing then .....

none of them worked

Posted 30-Mar-16 0:43am

tiwal

Updated 30-Mar-16 0:59am

Patrice T

v2

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OriginalGriff · Accepted Answer · 2016-03-30T00:49:00

Solution 1

Try:

VB.NET

Dim hsProd as Hashtable = Nothing
If hsProd IsNot Nothing then 
   ' Do stuff
Else
   ' Do other stuff
End If

Posted 30-Mar-16 0:49am

OriginalGriff

Comments

tiwal 30-Mar-16 15:40pm

already tried , it didn't work either

OriginalGriff 31-Mar-16 3:48am

Strange - because when I did, it did...
So what about my code was different from yours?

tiwal 31-Mar-16 9:37am

that's what I am asking myself ....

OriginalGriff 31-Mar-16 10:00am

So? If I copy the code above, it works. what happens if you copy it?
For example:
Sub Main()
Dim hsProd As Hashtable = Nothing
If hsProd IsNot Nothing Then
Console.WriteLine(" Do stuff")
Else
Console.WriteLine(" Do other stuff")
End If
End Sub

Produces: " Do other stuff"