Test if Object exists

  • Thread starter Thread starter tshad
  • Start date Start date
T

tshad

I have an object that may or may not exist on a page. Therefore, I test for
it. But it doesn't seem to work if I do the following:

if not HomeLink is nothing then
HomeLink.NavigateUrl="http://www.staffingworkshop.com/"

I get the error message:
********************************************************************
Compilation Error
Description: An error occurred during the compilation of a resource required
to service this request. Please review the following specific error details
and modify your source code appropriately.

Compiler Error Message: BC30451: Name 'HomeLink' is not declared.

Source Error:

Line 40: if not isPostBack then
Line 41: if Session("SiteSourceCompany") is nothing then
Line 42: if not HomeLink is nothing then
HomeLink.NavigateUrl="http://www.stw.com/" <-- error
Line 43: end if
Line 44: Dim OldStart = Session("start") 'Keep this as the clear will
dump it
***********************************************************************

How do I test to see if an object exists or not?

Thanks,

Tom
 
I have an object that may or may not exist on a page. Therefore, I test for
it. But it doesn't seem to work if I do the following:

if not HomeLink is nothing then
HomeLink.NavigateUrl="http://www.staffingworkshop.com/"

I get the error message:
********************************************************************
Compilation Error
Description: An error occurred during the compilation of a resource required
to service this request. Please review the following specific error details
and modify your source code appropriately.

Compiler Error Message: BC30451: Name 'HomeLink' is not declared.

Source Error:

Line 40: if not isPostBack then
Line 41: if Session("SiteSourceCompany") is nothing then
Line 42: if not HomeLink is nothing then
HomeLink.NavigateUrl="http://www.stw.com/" <-- error
Line 43: end if
Line 44: Dim OldStart = Session("start") 'Keep this as the clear will
dump it
***********************************************************************

How do I test to see if an object exists or not?

Thanks,

Tom
Click to expand...

That should work, but you must declare HomeLink, which is why the
compiler is complaining. Once you have it declared in your code, you
can check if it exists or not.
 
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