Esempio n. 1
0
        private static void HandleDatePickerDialogKey(object sender, DialogKeyEventArgs e)
        {
            // If the DatePicker is dropped down and Enter or Escape are pressed, we should
            // cancel or commit the selection change rather than allowing the default button
            // or cancel button to be invoked.
            DatePicker datePicker = (DatePicker)sender;

            if ((e.Key == Key.Enter || e.Key == Key.Escape) && datePicker.IsDropDownOpen)
            {
                e.Handled = true;
            }
        }
Esempio n. 2
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 private static void HandleComboBoxDialogKey(object sender, DialogKeyEventArgs e)
 {
     // If the ComboBox is dropped down and Enter or Escape are pressed, we should
     // cancel or commit the selection change rather than allowing the default button
     // or cancel button to be invoked.
     ComboBox comboBox = (ComboBox)sender;
     if ((e.Key == Key.Enter || e.Key == Key.Escape) && comboBox.IsDropDownOpen)
     {
         e.Handled = true;
     }
 }
Esempio n. 3
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        IntPtr SourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
        {
            // Handle WM_GETDLGCODE in order to allow for arrow and tab navigation inside the dialog page.
            // By returning this code, Windows will pass arrow and tab keys to our HWND instead of handling
            // them for its own default tab and directional navigation.
            switch (msg)
            {
                case NativeMethods.WM_GETDLGCODE:
                    int dlgCode = NativeMethods.DLGC_WANTARROWS | NativeMethods.DLGC_WANTTAB | NativeMethods.DLGC_WANTCHARS;

                    // Ask the currently-focused element if it wants to handle all keys or not.  The DialogKeyPendingEvent
                    // is a routed event starting with the focused control.  If any control in the route handles
                    // this message, then we'll add DLGC_WANTALLKEYS to request that this pending message
                    // be delivered to our content instead of the default dialog procedure.
                    IInputElement currentElement = Keyboard.FocusedElement;
                    if (currentElement != null)
                    {
                        DialogKeyEventArgs args = new DialogKeyEventArgs(DialogKeyPendingEvent, KeyInterop.KeyFromVirtualKey(wParam.ToInt32()));
                        currentElement.RaiseEvent(args);

                        if (args.Handled)
                        {
                            dlgCode |= NativeMethods.DLGC_WANTALLKEYS;
                        }
                    }

                    handled = true;
                    return new IntPtr(dlgCode);
            }

            return IntPtr.Zero;
        }