[visual Basic] How To Confirm A Array Is Null

[jedipi 0]

for example,Dim array() as integerduring run time, how to confirm a array is null (do not contain any element)Thanks

[szupie 0]

Uh... Are you asking a question or is this like a tutorial? If it is a question, please use the "How do I confirm" or "How is an array confirmed" form, or simply add a question mark. I'm not trying to mock you...

[BabyTux 0]

on error goto wDim a() As IntegerDim i As Integeri = UBound(a)    'If a() contains no element an error will occurexit subw:    msgbox "Array is empty!"

[jipman 0]

Euh... how about this:dim a() as integerif lbound(a) = ubound(a) and lbound(0) = 0 then msgbox "aray is empty"

[vizskywalker 0]

If the array is completely empty and thus null, you could just use the IsNull function, like so or IsEmpty():If Isnull(array) then msgbox "array is empty"orIf IsEmpty(array) then msgbox "array is empty"

[jedipi 0]

If the array is completely empty and thus null, you could just use the IsNull function, like so or IsEmpty():

If Isnull(array) then msgbox "array is empty"

or

If IsEmpty(array) then msgbox "array is empty"

<{POST_SNAPBACK}>

Thanks for your help.

 

yes..I just use IsEmpty() function to get the task done.

[tansqrx 0]

Didn't really see if you were talking VB 6 or .NET. In .NET you can use the "Nothing" keyword.Dim array() As Integer If array Is Nothing Then 'do something End If