Programming Forums > Application Development > C#

willkoh · Jul 9th, 2005, 3:58 PM

How can I get a reference to an instance of each of my appplication's forms at startup, that will be valid everywhere?

It may be that the right style of programming is to run a new instance of it that is disposed when it closes. But if you want to do it the way I described, it must be possible somehow, right? I did it in VB.Net.

Dameon · Jul 9th, 2005, 5:05 PM

Are you referring to the way that forms worked in VB 6 and below? There isn't a difference between how C# and VB .Net handle forms. Look up the singleton pattern if you want it to be somewhat similar to VB 6 forms.

willkoh · Jul 10th, 2005, 1:38 PM

As I said, I did it in VB.Net so it might just be a case of me forgetting. Could someone please show?

willkoh · Jul 10th, 2005, 2:06 PM

OK, I'm now beeing more specific, and I've solved it a way that some people might like more than singelton (i'm not saying I invtented something, just thought maybe someone wonders allong the same lines):

(Toggle Plain Text)

using System.Windows.Forms;
using System;

public class app {
	public static Form1 finF1 = new Form1();
	public static Form2 finF2 = new Form2();
	[STAThread]
	static void Main()
	{
		finF2.Show();
		Application.Run(finF1);
	}
}

The thing is finXX has to be static. I don't know why... Could someone explain? I've also removed the namespace around the forms and app clases for shorter access path. The forms are accesed by app.XX. Forms must be started by Show (at any time you like) except the one to appear when the app starts that starts with Application.Run(xx)

In VB though, you could get rid of the "app." part. I guess that's not possible in c#?

willkoh · Jul 10th, 2005, 4:32 PM

...but you don't get access to the controls on the forms. Damn it.

Jul 9th, 2005, 3:58 PM	#1
willkoh Newbie Join Date: May 2005 Posts: 9 Rep Power: 0	Getting form- ref. across modules? How can I get a reference to an instance of each of my appplication's forms at startup, that will be valid everywhere? It may be that the right style of programming is to run a new instance of it that is disposed when it closes. But if you want to do it the way I described, it must be possible somehow, right? I did it in VB.Net.

Jul 9th, 2005, 5:05 PM	#2
Dameon Troll Join Date: Apr 2005 Location: Texas Posts: 732 Rep Power: 4	Are you referring to the way that forms worked in VB 6 and below? There isn't a difference between how C# and VB .Net handle forms. Look up the singleton pattern if you want it to be somewhat similar to VB 6 forms. __________________ MD5(sig) = bcef75433db02e9ad9bf81d6f7c5c270

Jul 10th, 2005, 2:06 PM	#4
willkoh Newbie Join Date: May 2005 Posts: 9 Rep Power: 0	OK, I'm now beeing more specific, and I've solved it a way that some people might like more than singelton (i'm not saying I invtented something, just thought maybe someone wonders allong the same lines): (Toggle Plain Text) using System.Windows.Forms; using System; public class app { public static Form1 finF1 = new Form1(); public static Form2 finF2 = new Form2(); [STAThread] static void Main() { finF2.Show(); Application.Run(finF1); } } using System.Windows.Forms; using System; public class app { public static Form1 finF1 = new Form1(); public static Form2 finF2 = new Form2(); [STAThread] static void Main() { finF2.Show(); Application.Run(finF1); } } The thing is finXX has to be static. I don't know why... Could someone explain? I've also removed the namespace around the forms and app clases for shorter access path. The forms are accesed by app.XX. Forms must be started by Show (at any time you like) except the one to appear when the app starts that starts with Application.Run(xx) In VB though, you could get rid of the "app." part. I guess that's not possible in c#?

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Jul 10th, 2005, 1:38 PM	#3
willkoh Newbie Join Date: May 2005 Posts: 9 Rep Power: 0	As I said, I did it in VB.Net so it might just be a case of me forgetting. Could someone please show?

Jul 10th, 2005, 4:32 PM	#5
willkoh Newbie Join Date: May 2005 Posts: 9 Rep Power: 0	...but you don't get access to the controls on the forms. Damn it.

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Programming Forums > Application Development > C#

Getting form- ref. across modules?