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  1. #1

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    Question a single function with different returns

    hello,

    How can I call individual parts of this function? I would like to call return Gallons and decPaintCostperRoom as individual entities with a single function.

    Thank you for your time

    Code:
     Private Function Gallons(ByRef intSquareFeet As Integer, ByRef decPaintCost As Decimal) As Decimal
    
            Dim decGallons As Decimal
            Dim decPaintCostPerRoom As Decimal
    
            'gallons is averaged by 115
            decGallons = intSquareFeet / 115
            decGallons = Math.Ceiling(decGallons)
    
    
            decPaintCostPerRoom = decPaintCost * decGallons
    
    
            Return decGallons
            Return decPaintCostPerRoom

  2. #2
    Cumbrian Milk's Avatar
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    Re: a single function with different returns

    You can only return one value. A value however can be a reference to anything you want, such as an object that encapsulates many other values. An existing framework 4+ object that might be useful to you is a Tuple. Alternatively you could define your own type using a class or structure or you could pass arguments ByRef (as you are) and alter them in the function.
    W o t . S i g

  3. #3
    Super Moderator si_the_geek's Avatar
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    Re: a single function with different returns

    Thread moved from the 'CodeBank VB.Net' forum (which is for you to post working code examples, not questions) to the 'VB.Net' forum

  4. #4
    Loquacious User Shaggy Hiker's Avatar
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    Re: a single function with different returns

    I think you will want to return one of those values as the function return, and return the other in a ByRef argument.
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  5. #5
    Frenzied Member MattP's Avatar
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    Re: a single function with different returns

    Rather than creating your own class to return or having a ByRef parameter for the function I would advise you to split it into 2 functions. Each method should have a single responsibility.

    vb.net Code:
    1. Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    2.         Const sqFt = 1000
    3.         Dim gal = Gallons(sqFt)
    4.         Dim cost = RoomPaintCost(gal, 19.95)
    5.     End Sub
    6.  
    7.     Private Shared Function Gallons(squareFeet As Integer) As Decimal
    8.         Return Math.Ceiling(squareFeet / 115)
    9.     End Function
    10.  
    11.     Private Shared Function RoomPaintCost(gallons As Decimal, paintCost As Decimal) As Decimal
    12.         Return gallons * paintCost
    13.     End Function
    This pattern in common to all great programmers I know: they're not experts in something as much as experts in becoming experts in something.

    The best programming advice I ever got was to spend my entire career becoming educable. And I suggest you do the same.

  6. #6
    Loquacious User Shaggy Hiker's Avatar
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    Re: a single function with different returns

    I'm changing my answer. After looking at the code a bit closer, I totally agree with MattP: These are two functions.
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