ref parameter

#1

Dear Authorities:

In C# and in other languages there is support for "ref" parameter. I need
to be able to accomplish the same in J#. Does anyone know how this could
be accomplished? Please advise.

What I want to accomplish is to pass the equivalent of reference to a
"Label". The Label should be a parameter in a Class method parameter,
such that when I change the Text value of the Label passed as a reference
with the Class method, the Label's text value will also be changed outside
the class.

Sincerely,

Burt

#2

Dear Lars-Inge:

Thank you for your patience. You are a great help to the J# community.

I could find no documentation that suggested this to work. So I assumed
that there was
some missing syntax that I needed to accomplish this. Had I just had the
unknown,
which you so simply suggested, I would have discovered that it works without
any
additional syntax.

Thank you Lars. You have helped me once before concerning J#, and now you
have done it again.

"Lars-Inge Tønnessen [VJ# MVP]" <http://emailme.larsinge.com> wrote in
message news:%23JgCZ$cuEHA.1452 (AT) TK2MSFTNGP11 (DOT) phx.gbl...

Quote:

Anything like this?

import System.Drawing.*;
import System.Collections.*;
import System.ComponentModel.*;
import System.Windows.Forms.*;
import System.Data.*;

public class label_change
{

public label_change()
{
}

public void changeText( System.Windows.Forms.Label lab )
{
lab.set_Text("Hello from me");
}
}

public class Form1 extends System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.ComponentModel.Container components = null;

public Form1()
{
InitializeComponent();

label_change a = new label_change();
a.changeText( this.label1 );
}

protected void Dispose(boolean disposing)
{
if (disposing)
{
if (components != null)
{
components.Dispose();
}
}
super.Dispose(disposing);
}

#region Windows Form Designer generated code
/**
* Required method for Designer support - do not modify
* the contents of this method with the code editor.
*/
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// label1
//
this.label1.set_Location(new System.Drawing.Point(56, 40));
this.label1.set_Name("label1");
this.label1.set_TabIndex(0);
this.label1.set_Text("label1");
//
// Form1
//
this.set_AutoScaleBaseSize(new System.Drawing.Size(5, 13));
this.set_ClientSize(new System.Drawing.Size(292, 266));
this.get_Controls().AddRange(new System.Windows.Forms.Control[]
{
this.label1}
);
this.set_Name("Form1");
this.set_Text("Form1");
this.ResumeLayout(false);

}
#endregion

/** @attribute System.STAThread() */
public static void main(String[] args)
{
Application.Run(new Form1());
}
}

Regards,
Lars-Inge Tønnessen

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ref parameter

Dotnet VJSharp microsoft.public.dotnet.vjsharp

ref parameter - 10-20-2004 , 10:33 PM

Re: ref parameter - 10-24-2004 , 10:41 PM