asked on

How to clear and reuse an Array

How might I clear and reuse an array? Something like this (which doesn't work).

dim ar() as string = {"XYZ","ABC","123"}
Do_A(ar)
ar.clear << doesn't work
ar() = {"PQR","HJK","435"} << doesn't work
Do_B(ar)

I'm using these arrays as low-syntax, easy to maintain temporary value holders, for use in building an in-memory data structure.
I'd like to avoid having to declare a new array every time I want to use it as a temporary value holder.

Any suggestions would be appreciated.

Thanks!

SOLUTION

hatem72

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hatem72

for dealing with data try this :

Public Structure employees

Dim EmpID As Integer
Dim EmpName As String
Dim EmpAdd As String

End Structure

Dim MyArray(5) As employees
...

MyArray(1).EmpAdd = EmpAddVar
MyArray(1).EmpID = EmpIDVar
MyArray(1).EmpName = EmpNameVar

if isnt clear i am here

codequest

ASKER

Thanks for the input. I'll check out the array reset's a little later and let you know if I can get them to work.
Thanks for the info and example on structure. That's very helpful...I hadn't figure those out yet.
Question: where do I declare structures? At the top of classes? Inside methods?
Thanks!

codequest

ASKER

Also, if I use a structure in one class, how do I make it available in another class...do I have to redefine it there?
Thanks!

hatem72

u can Declare structure like any variables anywhere (Not in Procedure level )

http://msdn2.microsoft.com/en-us/library/k69kzbs1(VS.80).aspx

my Example :

Imports System.Windows

Public Class MyClassName

Public Structure employees

Dim EmpID As Integer
Dim EmpName As String
Dim EmpAdd As String

End Structure
Dim MyArray(5) As employees

Public Sub PopData()

MyArray(1).EmpAdd = EmpAddVar
MyArray(1).EmpID = EmpIDVar
MyArray(1).EmpName = EmpNameVar

End Sub

...
...
...

End Class

' Another Class to write Data ( Just Example )

Public Class MyClassName

Public Sub GetData()

EmpAddVar=MyArray(1).EmpAdd
EmpIDVar=MyArray(1).EmpID
EmpNameVar=MyArray(1).EmpName

End Sub

End Class

ASKER CERTIFIED SOLUTION

PockyMaster

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codequest

ASKER

PockyMaster: good stuff, very handy, thanks!

hatem72: please collect extra points at a question I'll enter with
Q_21788716.html#16289923 in the title...just make any enty and I'll accept it as the answer

codequest