application-close | 易学教程

Task manager close is not detected second time in a WinForms Application

阅读更多关于 Task manager close is not detected second time in a WinForms Application

问题 private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (e.CloseReason == CloseReason.UserClosing) { if (MessageBox.Show(this, "Do you really want to close?", "Close?", MessageBoxButtons.YesNo) == DialogResult.No) { e.Cancel = true; } } } So when I want to close the application clicking the close button the message box is shown as it should, then I chose no. Then the line e.Cancel = true is executed and the form is not closed. Now the thing is, after this if i close the

applicationWillTerminate not called

阅读更多关于 applicationWillTerminate not called

问题 I implemented applicationWillTerminate method, but it's never called -(void)applicationWillTerminate:(NSNotification *)notification { [[NSApplication sharedApplication] terminate:self]; NSLog(@"EOP"); } How to execute some code before application close? Thanks 回答1: I just added -(BOOL) applicationShouldTerminateAfterLastWindowClosed:(NSApplication *) sender{ return YES; } Now applicationWillTerminate invokes 回答2: please set a key ( UIApplicationExitsOnSuspend ) in your plist to YES . Key :

Disable Alt+F4 but allow the the form to be closed by code, CloseReason.UserClosing is not helping

阅读更多关于 Disable Alt+F4 but allow the the form to be closed by code, CloseReason.UserClosing is not helping

问题 I want that the form will not close by doing Alt + F4 but if Application.Exit() or this.Close is called from the same Form, it should be closed. I tried CloseReason.UserClosing but still no help. 回答1: If you need to filter out Alt + F4 event only (leaving clicking of close box, this.Close() and Application.Exit() to behave as usual) then I can suggest the following: Set form's KeyPreview property to true ; Wire up form's FormClosing and KeyDown events: private void Form1_FormClosing(object

Task manager close is not detected second time in a WinForms Application

阅读更多关于 Task manager close is not detected second time in a WinForms Application

private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (e.CloseReason == CloseReason.UserClosing) { if (MessageBox.Show(this, "Do you really want to close?", "Close?", MessageBoxButtons.YesNo) == DialogResult.No) { e.Cancel = true; } } } So when I want to close the application clicking the close button the message box is shown as it should, then I chose no. Then the line e.Cancel = true is executed and the form is not closed. Now the thing is, after this if i close the application from task manager the close reason is UserClosing !!! Why? Shouldn't it be TaskManagerClosing?