Fix ESC handling in ticket completion dropdowns

FasdDesktopUi/Basics/UserControls/ComboBoxPageable.xaml.cs

@@ -222,6 +222,15 @@ namespace FasdDesktopUi.Basics.UserControls
             return null;
         }
 
+        public bool CloseDropDownIfOpen()
+        {
+            if (ComboBoxControl?.IsDropDownOpen != true)
+                return false;
+
+            ComboBoxControl.IsDropDownOpen = false;
+            return true;
+        }
+
         #region Paging Events
 
         #region PageBack

FasdDesktopUi/Basics/UserControls/HierarchicalSelectionControl.xaml.cs

@@ -34,6 +34,15 @@ namespace FasdDesktopUi.Basics.UserControls
             searchDelayTimer.Tick += SearchDelayTimer_Tick;
         }
 
+        public bool CloseDropDownIfOpen()
+        {
+            if (ComboBoxControl?.IsDropDownOpen != true)
+                return false;
+
+            ComboBoxControl.IsDropDownOpen = false;
+            return true;
+        }
+
         public override void OnApplyTemplate()
         {
             base.OnApplyTemplate();

FasdDesktopUi/Basics/UserControls/Ticket/CloseCaseDialogWithTicket.xaml.cs

@@ -2665,6 +2665,48 @@ namespace FasdDesktopUi.Basics.UserControls
         #region DropDown
         private static bool IsInsidePageable(FrameworkElement fe) => cUiElementHelper.GetFirstParentOfType<ComboBoxPageable>(fe) != null;
 
+        public bool TryHandleEscapeKey()
+        {
+            try
+            {
+                if (TicketSelectionPopUp?.IsOpen == true)
+                {
+                    TicketSelectionPopUp.IsOpen = false;
+                    return true;
+                }
+
+                if (QuickTicketSelection?.IsDropDownOpen == true)
+                {
+                    QuickTicketSelection.IsDropDownOpen = false;
+                    return true;
+                }
+
+                if (CategorySelectionControl?.CloseDropDownIfOpen() == true)
+                    return true;
+
+                if (ComputerSelection?.IsDropDownOpen == true)
+                {
+                    ComputerSelection.IsDropDownOpen = false;
+                    return true;
+                }
+
+                if (ServiceSelectionControl?.CloseDropDownIfOpen() == true)
+                    return true;
+
+                if (TicketStatusCombobox?.IsDropDownOpen == true)
+                {
+                    TicketStatusCombobox.IsDropDownOpen = false;
+                    return true;
+                }
+            }
+            catch (Exception E)
+            {
+                LogException(E);
+            }
+
+            return false;
+        }
+
         private void DropDownOpened(object sender, EventArgs e)
         {
             if (!(sender is FrameworkElement fe)) return;

FasdDesktopUi/Pages/TicketCompletion/TicketCompletion.xaml.cs

@@ -285,7 +285,14 @@ namespace FasdDesktopUi.Pages.TicketCompletion
             switch (e.Key)
             {
                 case Key.Escape:
+                    if (CloseCaseDialogUc?.TryHandleEscapeKey() == true)
+                    {
+                        e.Handled = true;
+                        return;
+                    }
+
                     Close_Click();
+                    e.Handled = true;
                     break;
             }
         }