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Function Trouble

I have a function that I am trying to call and for some reason I can't get it to work. The function is not complete yet but here's what I have so far:

Function Validate(Entered As String, TypeEntered As Integer, FieldName As String)

If TypeEntered = 0 Then
If Entered = "" Then
Trim (Entered)
Entered = InputBox("There must be an entry in the " + FieldName + " field. Please enter it below.")
End If
End If

End Function

Every time I try to call the function gives me the error:
Expected:=
I don't understand. The way I tryed to call it is:

Validate(txtFirstName.text, 0, "First Name")

HELP!!!!!

ASKER CERTIFIED SOLUTION

fguerreiro_inix

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thorner

ASKER

But what value does it return to something?

fguerreiro_inix

Function Validate(Entered As String, TypeEntered As _
integer,FieldName As String)as boolean

Validate= true

If TypeEntered = 0 Then
If Entered = "" Then
Trim (Entered)
Entered = InputBox("There must be an entry in the _
+ FieldName + " field. Please enter it below.")
Validate= false
End If
End If

End Function

You should say what kind of value the function returns.

Function blabla(aaa As String, bbb As integer) as boobean

and the function blabla returns a boolean. Inside the function you must assign the value you want to return (true or false).
If you don't specify the type of the return value it will return a variant.

Hope this helps
Regards