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How to tell if a variable contains an object

Posted on 2006-06-15
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Last Modified: 2012-05-05
I've created a form and stored it in a variable, however i need to be able to tell if the form has already been created and stored so that i don't do it again.

How do i do it? There used to be IsObject in VB6.
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Question by:James_Wyatt
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2 Comments
 
LVL 18

Accepted Solution

by:
Ravi Singh earned 50 total points
ID: 16912196
When a variable isnt referencing anything its usually just a null, have you tried comparing against the null?

if (FormObject == null)
      //FormObject not initialised
else
     //FormObject was initialised
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LVL 1

Author Comment

by:James_Wyatt
ID: 16912471
Cheers i narrowed it down to

if (myResults == null || myResults.IsDisposed)

had to add is disposed incase someone had closed the form.
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