Forms and Dispose

  • Article

As I have mentioned before, there is a wealth of knowledge to be gained from reading
internal Microsoft mailing lists. I plan to share some of that when I get a chance
- under the category .NET
- Random Tips. Here is one such.

If you have code like this:

private void Foo() {

     MyForm f = new MyForm();

     f.Show();

}

Does f get garbage collected when Foo() returns?

Mark
Boulter clarifies:

No, the Form will not be garbage collected until it is closed and disposed.

More on automatic form disposal:

- Modal Forms (ShowDialog)
do not get automatically Disposed on Close.

*Modeless Forms ([Show](https://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformscontrolclassshowtopic.asp))<br> get automatically Disposed on [Close](https://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemWindowsFormsFormClassCloseTopic.asp).*