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Asked: 2026-05-18T02:16:34+00:00

In visual studio 2008, when I use something akin to the following snippet: Dim

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In visual studio 2008, when I use something akin to the following snippet:

Dim myVar
.... ' all sorts of stuff that might initialise myVar '
if not isNothing(myVar) then
   myVar = new Object()
end if
myVar.ToString()

visual studio warns me on the last statement that myVar might be uninitialised, and a nullreference exception could occur.

To me it seems desirable to suppress that message in this situation.

  1. Am I right in wanting to suppress that warning here, or am I overlooking something?
  2. Is it possible to suppress a warning here.

Note that I don’t want to suppress the warning in general, only if I’m sure it makes no sense here.

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1 Answer

  1. Editorial Team

    Am I right in wanting to suppress that warning here, or am I overlooking something?

    No you are not right. If there’s a condition under witch the variable might not get initialized you will get into trouble. So it would be better to always initialize variables:

    Dim myVar as SomType = Nothing
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