当我按WindowsLogs + D时，ContextMenustrip不会自动关闭

Question

I have contextmenustrip named "cmsView" in my application. When i right click the mouse button the cmsView has opened and click some where in the application cmsView gets closed. If I opened the cmsView and press Windowslogo +D(ie, minimize the applications) and again the cmsView is not closed and in opened state whenever i click some in the application and lost it focus.

How to solve this issue.

Regards, Tanya

Answer 1

This is not a bug in your application or in the ContextMenuStrip control. If anything, it's a bug in Windows with the pop-up menu control, and the WinForms controls are actually mimicking that bug so that they will behave as the user expects.

You can test this out for yourself in a simple application like Notepad. Open a new instance, right-click on the document area, and then press Win + D . The context menu will remain open and visible on the desktop, even though the application's window is gone (minimized).

So I don't recommend trying to "fix" this in your application. When in Rome, do as the Romans do...

If you absolutely had to try and fix it, you might try listening for a minimize event for your form and manually instructing the context menu to close.

private const int WM_SYSCOMMAND = 0x0112; 
private const int SC_MINIMIZE = 0xf020; 

protected override void WndProc(ref Message m) 
{ 
    if (m.Msg == WM_SYSCOMMAND) 
    { 
        if (m.WParam.ToInt32() == SC_MINIMIZE) 
        { 
            // Close the context menu strip when the form is being minimized
            cmsView.Close();    
        } 
    } 
    base.WndProc(ref m); 
}