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vba / call function & assign value into variable string

Posted on 2004-08-21
Last Modified: 2012-06-21
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


Question by:itc307
LVL 85

Accepted Solution

Mike Tomlinson earned 495 total points
ID: 11859252
Here is an example similar to yours:

Option Explicit

Private Sub Command1_Click()
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

Expert Comment

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

LVL 18

Expert Comment

ID: 11859540
Should the line
stName = myFunction(something)
stName = myFunction("something")
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Expert Comment

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()
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

Author Comment

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
LVL 85

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.


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