Answer by bdukes for Using VB.NET IIF I get NullReferenceException
IIf is an actual function, so all arguments get evaluated. The If keyword was added to VB.NET 2008 to provide the short-circuit functionality you're expecting.TrylogLine = "e.Value: "+ If(e.Value Is...
View ArticleAnswer by Philip Fourie for Using VB.NET IIF I get NullReferenceException
This is the expected behaviour.IIF is a function; therefore the parameters for the function will be evaluated before sending it to the function.In contrast, the ternary operator in C# is a language...
View ArticleAnswer by Chris Farmer for Using VB.NET IIF I get NullReferenceException
VB does not do short-circuiting evaluation in Iif. In your case, e.Value.ToString() is being evaluated no matter whether e.Value is nothing.
View ArticleUsing VB.NET IIF I get NullReferenceException
I am doing a little debugging, and so I want to log the eventArgs valueI have a simple line that basically does:logLine = "e.Value: "+ IIf(e.Value Is Nothing, "", e.Value.ToString())The way I...
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