How to Pass an COLLECTION as an Argument to a Procedure (PART 2)

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  • Mark Dicken

    How to Pass an COLLECTION as an Argument to a Procedure (PART 2)

    Hi All

    I have found the following Microsoft Technet 'Q'
    Article :-

    Q210368 -ACC2000: How to Pass an Array as an Argument to a Procedure

    (I've also copied and pasted the whole contents into the bottom of
    this email)

    (Hopefully I will not upset Microsoft REF the Copyright '© 2003
    Microsoft Corporation. All rights reserved.')

    BASICALLY I'm after the same as this but instead of sending an ARRAY I
    really want to send a COLLECTION (sort of by value), the reason for
    this is to work in a more OO way and pump some values into a Function
    (or Class Method) and have the function 'abstract' the work and send
    me back results which may or may not be a COLLECTION

    I'm also very surprised that I have not seen anyone else asking this
    type of question.

    Any Ideas...???

    Many Thanks In Advance ...

    Regards

    Mark Dicken




    *****START*****

    Knowledge Base

    ACC2000: How to Pass an Array as an Argument to a Procedure

    PSS ID Number: 210368

    Article Last Modified on 5/16/2002


    --------------------------------------------------------------------------------
    The information in this article applies to:


    Microsoft Access 2000
    Microsoft Visual Basic for Applications

    --------------------------------------------------------------------------------

    This article was previously published under Q210368
    Moderate: Requires basic macro, coding, and interoperabilit y skills.

    This article applies to a Microsoft Access database (.mdb) and to a
    Microsoft Access project (.adp).


    SUMMARY
    In order for a procedure to accept an array as an argument, the
    procedure must declare the array argument with opening and closing
    parentheses after the argument name. Additionally, when passing the
    array to the procedure, you must include parentheses after the array
    name, unless you are using Visual Basic. Otherwise, you may receive
    the error message "Parameter type mismatch" or "Duplicate definition."

    Microsoft provides programming examples for illustration only, without
    warranty either expressed or implied, including, but not limited to,
    the implied warranties of merchantability and/or fitness for a
    particular purpose. This article assumes that you are familiar with
    the programming language being demonstrated and the tools used to
    create and debug procedures. Microsoft support professionals can help
    explain the functionality of a particular procedure, but they will not
    modify these examples to provide added functionality or construct
    procedures to meet your specific needs. If you have limited
    programming experience, you may want to contact a Microsoft Certified
    Partner or the Microsoft fee-based consulting line at (800) 936-5200.
    For more information about Microsoft Certified Partners, please visit
    the following Microsoft Web site:


    For more information about the support options that are available and
    about how to contact Microsoft, visit the following Microsoft Web
    site:


    MORE INFORMATION
    The following example demonstrates the correct syntax for procedure
    declarations with an array:
    Function YourFunctionNam e (InArray() As String) As Integer

    Sub YourSubName (InArray() As String)

    The following example demonstrates the correct syntax for procedure
    calls with an array:
    Result = YourFunctionNam e(YourArrayName ())

    YourSubName YourArrayName()

    NOTE: When calling procedures in Visual Basic for Applications, you do
    not have to include the opening and closing parentheses after
    "YourArrayN ame" in the above example.
    Example
    The following example demonstrates a sample user-defined function that
    loads an array with string values:
    Create a module and type the following line in the Declarations
    section if it is not already there:
    Option Explicit

    Type the following procedures:
    '---------------------------------------------------------------
    'The function LoadArray() loads an array called MyArray
    'with string values. After loading the array, the function
    'calls a procedure that outputs each array element
    'to the Immediate window.
    '---------------------------------------------------------------

    Function LoadArray()
    Dim i as Integer
    ReDim MyArray(10) As String
    For i = 1 to 10
    MyArray(i) = "Test Value: " & i
    Next i
    DisplayArray MyArray()
    End Function

    '---------------------------------------------------------------
    'LoadArray() Sub Procedure
    '---------------------------------------------------------------

    Sub DisplayArray (InArray() As String)
    Dim i as Integer
    For i = 1 to UBound(InArray)
    Debug.Print InArray(i)
    Next i
    End Sub

    To test this function, type the following line in the Immediate
    window, and then press ENTER:
    ? LoadArray()

    Note that the following list appears the Immediate window:
    Test Value: 1
    Test Value: 2
    Test Value: 3
    Test Value: 4
    Test Value: 5
    Test Value: 6
    Test Value: 7
    Test Value: 8
    Test Value: 9
    Test Value: 10

    REFERENCES
    For more information about arrays, in the Visual Basic Editor, click
    Microsoft Visual Basic Help on the Help menu, type using arrays in the
    Office Assistant or the Answer Wizard, and then click Search to view
    the topic.

    Keywords: kbinfo kbProgramming KB210368
    Technology: kbAccess2000 kbAccess2000Sea rch kbAccessSearch kbVBASearch
    kbZNotKeyword3 kbZNotKeyword6



    --------------------------------------------------------------------------------

    Send feedback to Microsoft

    © 2003 Microsoft Corporation. All rights reserved.
    *****FINISH**** *
  • MGFoster

    #2
    Re: How to Pass an COLLECTION as an Argument to a Procedure (PART2)

    How to pass collection to sub/function:

    dim col as collection
    set col = new collection

    ' ... load the collection - or not ...

    ' Call a function that returns a string
    strSomething = MyFunction(col)

    ------
    The function declaration line:

    Public Function MyFunction(col as Collection) As String
    ' etc. .......
    End Function

    HTH,

    MGFoster:::mgf
    Oakland, CA (USA)


    Mark Dicken wrote:
    [color=blue]
    > Hi All
    >
    > I have found the following Microsoft Technet 'Q'
    > Article :-
    >
    > Q210368 -ACC2000: How to Pass an Array as an Argument to a Procedure
    >
    > (I've also copied and pasted the whole contents into the bottom of
    > this email)
    >
    > (Hopefully I will not upset Microsoft REF the Copyright '© 2003
    > Microsoft Corporation. All rights reserved.')
    >
    > BASICALLY I'm after the same as this but instead of sending an ARRAY I
    > really want to send a COLLECTION (sort of by value), the reason for
    > this is to work in a more OO way and pump some values into a Function
    > (or Class Method) and have the function 'abstract' the work and send
    > me back results which may or may not be a COLLECTION
    >
    > I'm also very surprised that I have not seen anyone else asking this
    > type of question.
    >
    > Any Ideas...???
    >
    > Many Thanks In Advance ...
    >
    > Regards
    >
    > Mark Dicken
    >
    >
    >
    >
    > *****START*****
    >
    > Knowledge Base
    >
    > ACC2000: How to Pass an Array as an Argument to a Procedure
    >
    > PSS ID Number: 210368
    >
    > Article Last Modified on 5/16/2002
    >
    >
    > --------------------------------------------------------------------------------
    > The information in this article applies to:
    >
    >
    > Microsoft Access 2000
    > Microsoft Visual Basic for Applications
    >
    > --------------------------------------------------------------------------------
    >
    > This article was previously published under Q210368
    > Moderate: Requires basic macro, coding, and interoperabilit y skills.
    >
    > This article applies to a Microsoft Access database (.mdb) and to a
    > Microsoft Access project (.adp).
    >
    >
    > SUMMARY
    > In order for a procedure to accept an array as an argument, the
    > procedure must declare the array argument with opening and closing
    > parentheses after the argument name. Additionally, when passing the
    > array to the procedure, you must include parentheses after the array
    > name, unless you are using Visual Basic. Otherwise, you may receive
    > the error message "Parameter type mismatch" or "Duplicate definition."
    >
    > Microsoft provides programming examples for illustration only, without
    > warranty either expressed or implied, including, but not limited to,
    > the implied warranties of merchantability and/or fitness for a
    > particular purpose. This article assumes that you are familiar with
    > the programming language being demonstrated and the tools used to
    > create and debug procedures. Microsoft support professionals can help
    > explain the functionality of a particular procedure, but they will not
    > modify these examples to provide added functionality or construct
    > procedures to meet your specific needs. If you have limited
    > programming experience, you may want to contact a Microsoft Certified
    > Partner or the Microsoft fee-based consulting line at (800) 936-5200.
    > For more information about Microsoft Certified Partners, please visit
    > the following Microsoft Web site:
    > http://www.microsoft.com/partner/referral/
    >
    > For more information about the support options that are available and
    > about how to contact Microsoft, visit the following Microsoft Web
    > site:
    > http://support.microsoft.com/default...EN-US;CNTACTMS
    >
    > MORE INFORMATION
    > The following example demonstrates the correct syntax for procedure
    > declarations with an array:
    > Function YourFunctionNam e (InArray() As String) As Integer
    >
    > Sub YourSubName (InArray() As String)
    >
    > The following example demonstrates the correct syntax for procedure
    > calls with an array:
    > Result = YourFunctionNam e(YourArrayName ())
    >
    > YourSubName YourArrayName()
    >
    > NOTE: When calling procedures in Visual Basic for Applications, you do
    > not have to include the opening and closing parentheses after
    > "YourArrayN ame" in the above example.
    > Example
    > The following example demonstrates a sample user-defined function that
    > loads an array with string values:
    > Create a module and type the following line in the Declarations
    > section if it is not already there:
    > Option Explicit
    >
    > Type the following procedures:
    > '---------------------------------------------------------------
    > 'The function LoadArray() loads an array called MyArray
    > 'with string values. After loading the array, the function
    > 'calls a procedure that outputs each array element
    > 'to the Immediate window.
    > '---------------------------------------------------------------
    >
    > Function LoadArray()
    > Dim i as Integer
    > ReDim MyArray(10) As String
    > For i = 1 to 10
    > MyArray(i) = "Test Value: " & i
    > Next i
    > DisplayArray MyArray()
    > End Function
    >
    > '---------------------------------------------------------------
    > 'LoadArray() Sub Procedure
    > '---------------------------------------------------------------
    >
    > Sub DisplayArray (InArray() As String)
    > Dim i as Integer
    > For i = 1 to UBound(InArray)
    > Debug.Print InArray(i)
    > Next i
    > End Sub
    >
    > To test this function, type the following line in the Immediate
    > window, and then press ENTER:
    > ? LoadArray()
    >
    > Note that the following list appears the Immediate window:
    > Test Value: 1
    > Test Value: 2
    > Test Value: 3
    > Test Value: 4
    > Test Value: 5
    > Test Value: 6
    > Test Value: 7
    > Test Value: 8
    > Test Value: 9
    > Test Value: 10
    >
    > REFERENCES
    > For more information about arrays, in the Visual Basic Editor, click
    > Microsoft Visual Basic Help on the Help menu, type using arrays in the
    > Office Assistant or the Answer Wizard, and then click Search to view
    > the topic.
    >
    > Keywords: kbinfo kbProgramming KB210368
    > Technology: kbAccess2000 kbAccess2000Sea rch kbAccessSearch kbVBASearch
    > kbZNotKeyword3 kbZNotKeyword6
    >
    >
    >
    > --------------------------------------------------------------------------------
    >
    > Send feedback to Microsoft
    >
    > © 2003 Microsoft Corporation. All rights reserved.
    > *****FINISH**** *[/color]

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