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vba / call function & assign value into variable string

Posted on 2004-08-21
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Last Modified: 2012-06-21
hi,
i am trying to call a function and use the returned value as the value of a string (using vba). Apparently it is not working. For example,

Function myFunction(name As string) As String
...
end Function

Sub mySub()
dim stName As string
stName = myFunction(something) ///error
' or
stName = Call myFunction(something) ///error
end Sub

Please let me know how to solve this problem

thanks
Sanjana

 
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Question by:itc307
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6 Comments
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 1485 total points
ID: 11859252
Here is an example similar to yours:

Option Explicit

Private Sub Command1_Click()
    mySub
End Sub

Public Function myFunction(ByVal name As String) As String
    ' do something with name and return it
    myFunction = Left(name, 1) & Right(name, 1)
End Function

Public Sub mySub()
    Dim stName As String
    Dim stParam As String
   
    stParam = "something"
    stName = myFunction(stParam)
    MsgBox "Input: " & stParam & vbCrLf & "Output: " & stName
End Sub
0
 
LVL 4

Expert Comment

by:hamood
ID: 11859384
where you have written this code. Just create a simple application (standared exe application) in vb6. now call your mysub function in form onload event like this

Private Sub Form_Load()
    Call mySub ' here is your function call
End Sub

Function myFunction(name As String) As String
    myFunction = name
    '...
End Function

Sub mySub()
    Dim stName As String
    stName = myFunction("something")
    MsgBox stName
    ' or
    stName = myFunction("something")
    msgbox stName

End Sub


hamood
0
 
LVL 18

Expert Comment

by:JR2003
ID: 11859540
Should the line
stName = myFunction(something)
be
stName = myFunction("something")
instead?
0
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LVL 2

Expert Comment

by:kouroshparsa
ID: 11862570
I don't know what you need to know !
I hope that yuo know a function returns a value and a sub does something. Either one can  have parameters (arguments)
=============
Here is a sample:
Private Sub Command1_Click()
mySub
End Sub

Function myFunction(name As String) As String
myFunction = "Hello " & name
End Function

Sub mySub()
Dim stName As String
strName = "John"
stName = myFunction(strName)
MsgBox (stName)
End Sub
0
 

Author Comment

by:itc307
ID: 11862610
thanks Idle Mind,
apparently I had problems returning the value of the function - i have solved it now. Regardless can u please tell me what "vbclrf" means. U have used this term in your code.

thanks sanjana
0
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 11862615
vbCrLf stands for Visual Basic Carriage Return & Line Feed.  When used in a string it causes the cursor to move down to the next line allowing you to make multiline messages.

Idle_Mind
0

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