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ASP VBScript Subroutine Multiple Return Values

Posted on 2006-06-11
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Last Modified: 2012-06-27
Hi friends,

Can subroutines return multiple values? If so how?

And will these return values have to be returned as an array? And again, how?

Thanks :-)

Lee.
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Question by:LeeGolding
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Accepted Solution

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huji earned 250 total points
ID: 16881795
Hi again!
The easiest way to return more than one value from a FUNCTION is to use an array output:

<%
FUNCTION returnTwoAndFour(arg)
  Dim temp(2)
  temp(0) = arg
  temp(1) = "Four"
  returnTwoAndFour = temp
END FUNCTION

Dim test(2)

Response.Write returnTwoandFour("Two")(1)
Response.Write "<BR>"
Response.Write returnTwoandFour("Two")(0)
%>
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Author Comment

by:LeeGolding
ID: 16881813
Hi again :-)

What about from a Sub?

Lee.
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Expert Comment

by:huji
ID: 16881827
Well, SUBs are not created to return values. The can modifed the variables defined outside them (let's call them global variables) but they can not return values directly. Functions are used for that.
You may declare a variable outside your SUB, of array type and enough size. Then you may fill it inside your SUB.
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LVL 14

Expert Comment

by:huji
ID: 16881832
Like this for example:

<%
  Option Explicit
  Dim Y(2)

  SetLocalVariable

  Response.Write Y(1)

Sub SetLocalVariable
    Y(1) = "Some text"
End Sub
%>
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Author Comment

by:LeeGolding
ID: 16881851
Thanks for clearing that up :-)

Lee.
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LVL 14

Expert Comment

by:huji
ID: 16881860
You are very welcome. :)
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