I have two windows: parent and child. I'm opening and closing child window by clicking button "Open window". Child window closes on lose_focus event. But when child window is opened, I click on "Open window" child window loses focus, closes, then button_click event raises and child window reopens. I whant to cancel button_click event if focus_lost event was raised before it. How can i do this?
Related
I know how to close a sub form and go to main form by clicking "close" button under file menu bar, but I don't know how to cancel a subform and go to main form by clicking the cross button --"cancel" which is located on the upper right corner.
and then back to the main form
Update:
I have tried go to form property, under Event,there is an item called, FormClosing, write a click event funcation name,i.e cancel_Click, and then press enter. Then I can write code under cancel_click, but it rises another problem. Since I want use same code here as the one under "close" on the menu (both can redirect back to the main form), when I close on menu bar, it appears two main form. How can I fix this?
use Form.Closing event and then do what ever you want to do. link
Set the FormClosing event for the sub-form to go to the main form. Set the FormClosing event for the main form to exit the program.
I have a Tray app.
On clicking its tray-icon, it Show()s one form.
Then that form Show()s one MessageBox.
Then I'd click outside its window to make it lose Focus.
Now again, as it normally happens, when I click the form's window, the MessageBox blinks once & gets the focus.
What I want to do, is that if I click on the tray-icon, the MessageBox should again get the focus.
On the tray-icon click, doing the form.Activate() too wouldn't give focus to the MessageBox window! but activates the form window, keeping the MessageBox afloat defocused over the focused form window.
Can you help me implementing the behavior??
Thank you.
Try this:
notifyIcon.DoubleClick += delegate {
form.Activate();
form.Focus();
MessageBox.Show(form, "text", "caption");
form.WindowState = FormWindowState.Normal;
};
Is there an event that fires on a mdi child form when said form is selected in the "Window" menu of an mdi parent? I tried just detecting focus but I need to be able to know when the menu item is clicked even if the child window to which it corresponds is minimized.
You can try the Activated event. It fired when the form is on top
I have a user control and this control is drag-dropped on a window. When this window gets closed, the user control's "Unloaded" event gets fired. I want to override this event in user control (or any other event which gets fired on window close) as i want to write some logic in it before it calls the base.Unloaded event.
The problem is there is no override for "Unloaded" event like "OnUnloaded" in user control.
Is there any other event other than "Unloaded" which gets fired when window closes and that can be overriden?
Check if the below links can help
WPF Window.Close() not triggering UserControl.Unloaded event
Disposing WPF User Controls
http://geekswithblogs.net/cskardon/archive/2008/06/23/dispose-of-a-wpf-usercontrol-ish.aspx
I want to capture events that close editor window (tab) in Visual Studio 2008 IDE.
When I use
dte2.Application.Events.get_CommandEvents(null, 0).BeforeExecute
I successfully captured such events:
File.Close
File.CloseAllButThis
File.Exit
Window.CloseDocumentWindow
and others.
If code in window is not acceptable, I stop the event (CancelDefault = true).
But if I click "X" button on the right hand side, "Save Changes"; dialog appears, tab with
editor window close and I have no any captured events. In this case I can capture WindowClosing event,
but can not cancel the event.
Is it poosible to handle "x" button click and stop event?
In C# it would be something like this: you add Closing event handler and then
void MyWindow_Closing(object sender, CancelEventArgs e)
{
if(something)
e.Cancel = true; //<- thats the magic part you want
}
I would suggest, check on the lines of handling MDI Child window events!!
The editor tab you are referring is basically an instance of MDI Child Window.
Hope this helps!
If you're willing to use some Windows API code you might be able to set up a hook using the SetWindowsHookEx function to intercept WM_CLOSE, WM_QUIT and WM_DESTROY.