Change BackgroundImage of form from Custom Control running in Panel

Question

My project consists of a form with a panel that contains a custom control. In this custom control I have buttons that change the background image.

My issue is; these buttons only change the background image of the custom control that they are placed in, and I need them to change the background image of the main form containing the panel with the custom control.

My current code:

this.BackgroundImage = Image.FromFile(System.IO.File.ReadAllText(BackgroundSkinsPath));

I need something that will in effect accomplish this:

MainForm.BackgroundImage = Image.FromFile(System.IO.File.ReadAllText(BackgroundSkinsPath));

ie: Change background image of MainForm.cs from CustomControl.cs

http://stackoverflow.com/questions/302839/wpf-user-control-parent — Steve, Jan 01 '16 at 23:53
I'm not really sure how to adapt any of the answers from that question to my particular circumstances — Patrick, Jan 02 '16 at 00:08
Sorry I was thinking that this was a WPF app. Is it a WinForms project? — Steve, Jan 02 '16 at 00:13
Ok, then we could look at this question http://stackoverflow.com/questions/8820606/get-access-to-parent-control-from-user-control-c-sharp — Steve, Jan 02 '16 at 00:16

score 2 · Answer 1 · answered Jan 02 '16 at 00:17

2

You can use Control.FindForm method for that, like this

this.FindForm().BackgroundImage = ...

answered Jan 02 '16 at 00:17

Ivan Stoev

195,425
15
312
343

score 0 · Accepted Answer · answered Jan 02 '16 at 02:44

I ended up using something different:

Form MainForm = Application.OpenForms["(The name of the form in which I wanted to change the background)"];

//...

MainForm.BackgroundImage = Image.FromFile(System.IO.File.ReadAllText(BackgroundSkinsPath));

It ended up being a lot simpler than I thought it was.

score 0 · Answer 3 · answered Jan 02 '16 at 06:18

0

Find the control's parents and change the BackgroundImage:

if(this.Parent!=null && this.Parent.Parent!=null)
   this.Parent.parent.BackgroundImage = Image.FromFile(System.IO.File.ReadAllText(BackgroundSkinsPath));

answered Jan 02 '16 at 06:18

Ghasem

14,455
21
138
171

Change BackgroundImage of form from Custom Control running in Panel

3 Answers3

Linked