Structure within structure - Help needed [modified]

[tiagu]

I am able to create a structure inside a structure in vb.net but i am confused as to assign values to the inner structure. I want to send the root structure (which contains the value of its own as well those of the inner structure) to another procedure.    Someone please help.   Thanks in advance

modified on Wednesday, May 27, 2009 6:07 AM

[Lost User]

Something like this?

Public Structure InnerStruct
Public InnerTest As String
End Structure
Public Structure RootStruct
Public Test As String
Public myStruct As InnerStruct
End Structure

Public Class Form1

Public Sub ShowInnerText(ByVal whatStruct As RootStruct)
    MessageBox.Show(whatStruct.myStruct.InnerTest)
End Sub

Private Sub Button1\_Click(ByVal sender As System.Object, \_
  ByVal e As System.EventArgs) Handles Button1.Click

    Dim newStruct As RootStruct
    newStruct.myStruct.InnerTest = "Hello world"
    ShowInnerText(newStruct)

End Sub

End Class

I are troll :)

[Jon_Boy]

Expanding on Eddy's example:

Public Structure InnerStruct
Public InnerTest As String

Public Sub Init
    InnerTest = "initialize your vars here"
End Sub

End Structure
Public Structure RootStruct
Public Test As String
Public myStruct As InnerStruct
End Structure

You can have subs etc, within a struct. You can also have a CTOR; although it must have parameters. Just another option for you.

Any suggestions, ideas, or 'constructive criticism' are always welcome. "There's no such thing as a stupid question, only stupid people." - Mr. Garrison

[tiagu]

Thank you very much for your help.   Your code works fine.   You have taught me how to do that.   Previously I placed the InnerStruct inside the RootStructure and was groping around.   Can it be done that way or was it a wrong approch ?   Thank you once again.

[Lost User]

You mean like this?

Public Structure RootStruct
Public Test As String
Public myStruct As InnerStruct

Public Structure InnerStruct
    Public InnerTest As String
End Structure

End Structure

That's valid too. Just don't forget to include a field that instantiates the struct in the RootStruct :)

I are troll :)

[tiagu]

Okay, i got it.   Thank you very much for your time and help.