Adjust project structure

src/Shared/HandyControl_Shared/Controls/Base/HeaderedSelectableItem.cs

@@ -0,0 +1,25 @@
+using System.Windows;
+
+namespace HandyControl.Controls
+{
+    public class HeaderedSelectableItem : SelectableItem
+    {
+        public static readonly DependencyProperty HeaderProperty = DependencyProperty.Register(
+            "Header", typeof(object), typeof(HeaderedSelectableItem), new PropertyMetadata(default(object)));
+
+        public object Header
+        {
+            get => GetValue(HeaderProperty);
+            set => SetValue(HeaderProperty, value);
+        }
+
+        public static readonly DependencyProperty HeaderTemplateProperty = DependencyProperty.Register(
+            "HeaderTemplate", typeof(DataTemplate), typeof(HeaderedSelectableItem), new PropertyMetadata(default(DataTemplate)));
+
+        public DataTemplate HeaderTemplate
+        {
+            get => (DataTemplate) GetValue(HeaderTemplateProperty);
+            set => SetValue(HeaderTemplateProperty, value);
+        }
+    }
+}