demo drawer handles scroll bar better

Author: ButchersBoy

MainDemo.Wpf/MainWindow.xaml.cs

@@ -2,6 +2,7 @@
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
 using System.Windows.Input;
+using System.Windows.Media;
 using MaterialDesignColors.WpfExample.Domain;
 using MaterialDesignThemes.Wpf;
 
@@ -19,6 +20,14 @@ public MainWindow()
 
         private void UIElement_OnPreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
         {
+            //until we had a StaysOpen glag to Drawer, this will help with scroll bars
+            var dependencyObject = Mouse.Captured as DependencyObject;
+            while (dependencyObject != null)
+            {
+                if (dependencyObject is ScrollBar) return;
+                dependencyObject = VisualTreeHelper.GetParent(dependencyObject);
+            }
+
             MenuToggleButton.IsChecked = false;
         }