Array Function

[Rock]

I am getting an error: "Object reference not set to an instance of an
object." when trying to use a function that returns an array list. Can I
not do this, how would I set the instance of a public function???

I have a global function FieldArray in Class 1:

Public Function FieldArray(s1, s2) as arraylist
FieldArray.Add(s1)
FieldArray.Add(s2)
End function

which I call from my form:

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

Dim arrFields as new ArrayList
Dim cls as new Class1
arrFields = cls.FieldArray(str1, str2)

End Sub

[Marina]

As far as I can tell you are just recursively calling the same function. VB
will let you call functions without the paren there necessarily.

"Rock" <ro********@yahoo.com> wrote in message
news:OC**************@TK2MSFTNGP14.phx.gbl...

I am getting an error: "Object reference not set to an instance of an
object." when trying to use a function that returns an array list. Can I
not do this, how would I set the instance of a public function???

I have a global function FieldArray in Class 1:

Public Function FieldArray(s1, s2) as arraylist
FieldArray.Add(s1)
FieldArray.Add(s2)
End function

which I call from my form:

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

Dim arrFields as new ArrayList
Dim cls as new Class1
arrFields = cls.FieldArray(str1, str2)

End Sub

[Kevin Spencer]

You're referencing "FieldArray" in your function, and for the life of me, I
can't see where you've created it. Perhaps it is Nothing?

In addition, a Function returns a value. Yours doesn't. That should take
care of the next question you would be posting.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
Neither a follower nor a lender be.

"Rock" <ro********@yahoo.com> wrote in message
news:OC**************@TK2MSFTNGP14.phx.gbl...

I am getting an error: "Object reference not set to an instance of an
object." when trying to use a function that returns an array list. Can I
not do this, how would I set the instance of a public function???

I have a global function FieldArray in Class 1:

Public Function FieldArray(s1, s2) as arraylist
FieldArray.Add(s1)
FieldArray.Add(s2)
End function

which I call from my form:

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

Dim arrFields as new ArrayList
Dim cls as new Class1
arrFields = cls.FieldArray(str1, str2)

End Sub

[Rock]

You're both right: I ended up keeping the function as type arraylist, but
creating an internal array, adding the values to that, then returning the
internal array.

Thanks.

"Rock" <ro********@yahoo.com> wrote in message
news:OC**************@TK2MSFTNGP14.phx.gbl...

I am getting an error: "Object reference not set to an instance of an
object." when trying to use a function that returns an array list. Can I
not do this, how would I set the instance of a public function???

I have a global function FieldArray in Class 1:

Public Function FieldArray(s1, s2) as arraylist
FieldArray.Add(s1)
FieldArray.Add(s2)
End function

which I call from my form:

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

Dim arrFields as new ArrayList
Dim cls as new Class1
arrFields = cls.FieldArray(str1, str2)

End Sub