Windows Forms

[quiquex]

Need some help accesing methods of a parent form, from a child form. How is this done?

[DavidNohejl]

if those methods are public, child form can siply keep reference to it's parent.. oh wait.. that should we be in Owner property of child form, if you display it with ShowDialog( IWin32Window ) overload of that method. If they are not public, can you make them public? ( or internal) David

[Ming_Lei]

A parent form is a form which is a MdiContainer. A child form can call its parent using childfrom.MdiParent. ==== Lei Ming 2004 ===== ====================

[quiquex]

Yes but the methods of the parent form are not shown using childform.MdiParent What if i'm not using an MDI container?

[Joshua Nussbaum]

You need to cast it the concrete class. i.e. MyMainForm frm = Parent as MyMainForm; 60% of statistics are made up on the spot

[quiquex]

Still not getting it. This is my code: In the MainForm (GameForm)... BuyingForm f = new BuyingForm(new_item); //new instance of a "child" form GameForm gameForm = Parent as GameForm; f.Parent = gameForm; f.Show(); In the ChildForm (BuyingForm)... this.ParentForm.SomeMethod(); //the method is not listed

[Dave Kreskowiak]

Setup a field on your BuyingForm that holds a Form:

public class BuyingForm : Form
Form myParent;
.
.
.
myParent.PublicMethodCall( parameters );

When you create an instance of this form, just set this field before you show the form:

// GameForm code
BuyingForm f = new BuyingForm(new_item);
f.myParent = this;
f.Show();

If you use the Parent property of the form to do this, you could have some very strange and unintended side effects. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

[Anonymous]

What would be the safest way to do this? To avoid the strange unintended side effect.

[Dave Kreskowiak]

If you look at my previous post, you don't have to worry about it. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

[quiquex]

Changed the code but i still cant access any user made methods in my parent form, and yes they are declared as public. All i can see is the usual methods, events and properties of a form. Sorry to be a drag but whats going on?

[quiquex]

ok finally got it working, thanks for your help!