Structures.... Got A Problem

[JustAProg]

  Public Structure ROO_1
    Public Minutes As Byte
    Public Seconds As Byte
  End Structure

  Public Structure INFO_TYPE
    Public SetInfo As Integer
    Public BackTime As ROO_1
  End Structure

  Public Structure PROGRAM_TYPE
    Public Programs As Byte
    Public Number As Byte
    Public Time As ROO_1
    Public Information() As INFO_TYPE
  End Structure

  Public Structure MY_MAIN_TYPE
    Public Filename As String
    Public ProgramInformation() As PROGRAM_TYPE
  End Structure

  Public Function TestFunc() As MY_MAIN_TYPE

    Dim tmp As MY_MAIN_TYPE : ReDim tmp.ProgramInformation(16)
    Dim tmp_two As PROGRAM_TYPE : ReDim tmp_two.Information(8)
    'ALSO TRIED THIS >> ReDim tmp.ProgramInformation(16).Information(8)

    tmp.ProgramInformation(0).Programs = 1
    tmp.ProgramInformation(0).Number = 1
    tmp.ProgramInformation(0).Time.Minutes = 4
    tmp.ProgramInformation(2).Information(2).BackTime.Seconds = 43 ' << ALWAYS ERRORS

    Return tmp
  End Function

Sorry for all the code but this is to give you an idea of my problem.
I always get an instance/object error. I've use 'redim' on ProgramInformation as I want it (16), a set size, but I can't seemed to find a way to do it to 'Information' in the program_type structure, obviously something to do with it being a structure in a structure no doubt, how do I get around this? I VB6 I could just declare the size/arraysize in the structure.

I've also tried the <VBFixedArray(8)> method, no luck.

Please Help.......

[JustAProg]

Help....

[Arc]

Well what you're trying to do will not work. I tried changing Information to a multi dementional array but you cant declare an array inside a structure soo that wont work either. The only other options is to create 2 info arrays one for mins and secs. Ofcourse this mean you'll have to restructure your entire concept.


Basically something like this, but ROO will have to be changed or deleted as its not part of Information any more.

Public Structure ROO_1
        Public Minutes As Byte
        Public Seconds As Byte
    End Structure
 
    Public Structure INFO_TYPE
        Public SetInfo As Integer
        Public BackTime As ROO_1
    End Structure
 
    Public Structure PROGRAM_TYPE
        Public Programs As Byte
        Public Number As Byte
        Public Time As ROO_1
        Public InfoMins() As Byte
        Public InfoSecs() As Byte
    End Structure
 
    Public Structure MY_MAIN_TYPE
        Public Filename As String
        Public ProgramInformation() As PROGRAM_TYPE
    End Structure
 
    Public Function TestFunc() As MY_MAIN_TYPE
 
        Dim tmp As MY_MAIN_TYPE
        ReDim tmp.ProgramInformation(16)
        Dim tmp2 As PROGRAM_TYPE
        ReDim tmp2.InfoMins(5)
        ReDim tmp2.InfoSecs(5)
 
 
 
        tmp.ProgramInformation(0).Programs = 1
        tmp.ProgramInformation(0).Number = 1
        tmp.ProgramInformation(0).Time.Minutes = 4
        tmp.ProgramInformation(2).InfoMins(1) = 23
        tmp.ProgramInformation(2).InfoSecs(1) = 23 ' << ALWAYS ERRORS
 
        Return tmp

[shutty]

If you are using VB.NET I would strongly recommend that you learn the basics of OOP. The use of Classes instead of structures would illimiate your problems. Each class could then manage itself as you can put your 'structure' specific code within itself.

[hellswraith]

I agree, classes are better used in this senerio.

[shutty]

I've knocked up a (very) noddy console app to mirror your code snippet using classes.

it's a little large to post so email me if you want a copy.

[JustAProg]

Cheers, I've sent you an email.