How to close the parent window of a Child Window

Source: Internet
Author: User
It is actually a problem of inter-window communication.

Implementation Method:

Declare the event in the subwindow:

Public event childclose closefather;

Then trigger this event in its close event:

Private void formpolicclosed (object sender, System. EventArgs e)
// Use events to close the main window
Closefather ();

In the parent window (in the login window ):

Before the window class, declare the proxy after the common namespace:

Public delegate void childclose ();

Then, the subform is written as follows:

Form1 ff = new Form1 ();
Ff. closefather + = new childclose (this. closethis); // closethis () is a method in the parent form
Ff. Show ();

Definition method:

Public void closethis ()
This. Close ();


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