Variable scope

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tshad - 18 Apr 2007 18:57 GMT

I have a class with a variable employeeID as global variable.

I also have a subroutine that uses the same name:

Sub GetEmployee(employeeID as String)

Get the data
Assign the Global variables.

End sub

I want to assign the Global variable to the local variable. Is there a way
to do this easily without changing the name. I know there is a way to
reference the global variable but I can't remember what it is.

Thanks,

Tom

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Mattias Sjögren - 18 Apr 2007 19:48 GMT

>I have a class with a variable employeeID as global variable.

There are no truly global variables in VB.NET. I assume you mean a
field declared at the class level.

>I also have a subroutine that uses the same name:
>
[quoted text clipped - 8 lines]
>to do this easily without changing the name. I know there is a way to
>reference the global variable but I can't remember what it is.

Just prefix it with Me (or MyClass)

Me.employeeID = employeeID

Mattias

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Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
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tshad - 24 Apr 2007 02:17 GMT

That was what I was looking for.

Thanks,

Tom

>>I have a class with a variable employeeID as global variable.
>
[quoted text clipped - 20 lines]
>
> Mattias

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Phill W. - 20 Apr 2007 12:06 GMT

> I have a class with a variable employeeID as global variable.

I /really/ hope you don't /mean/ global.

The whole point of a Class is that it "encapsulates" (i.e contains) data
that is relevant to a particular /instance/ of itself.
For example:

Class Employee
Friend Sub New( ByVal Id as Integer )
_Id = Id
End Sub

Public ReadOnly Property Id() as Integer
Get
Return _Id
End Get
End Property

Private _Id as Integer
End Class

...then...

Dim fred as New Employee( 55 )

> I want to assign the Global variable to the local variable.

If you want to pass a value into a Class, use a Property.

. . .
Public Property DepartmentId() as Integer
Get
Return _DepartmentId
End Get
Set( ByVal DepartmentId as Integer )
_DepartmentId = DepartmentId
End Get
End Property
Private _DepartmentId as Integer
. . .

HTH,
Phill W.

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Variable scope

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