How can I dispose of all controls in a panel or form in ONCE ??? FROM#

Question

Possible duplicate:
Does Form.Dispose () support call control inside Dispose ()?

is there any way to do this?

Answer 1

Both the panel and the form class have the Controls collection property, which has the Clear () method ...

MyPanel.Controls.Clear(); 

or

 MyForm.Controls.Clear(); 

But Clear() does not call dispose() (all it does is remove it from the collection), so you need to do

  List<Control> ctrls = new List<Control>(MyPanel.Controls); MyPanel.Controls.Clear(); foreach(Control c in ctrls ) c.Dispose(); 

You need to create a separate list of links because Dispose will also remove the control from the collection by changing the index and ruining the foreach ...

Answer 2

I do not believe that there is a way to do this all at once. You can simply iterate over child controls and call each of your delete methods one at a time:

 foreach(var control in this.Controls) { control.Dispose(); } 

Answer 3

You do not give details about why.

This happens in the form's Dispose override method (in form.designer.cs). It looks like this:

 protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } 

Answer 4

You did not share if it was ASP.Net or Winforms. If the latter, you can do quite well by first typing SuspendLayout() on the panel. Then, when done, call ResumeLayout() .