添加项目文件。

gong-wpf-dragdrop/src/GongSolutions.WPF.DragDrop/DropTargetAdorners.cs

@@ -0,0 +1,17 @@
+using System;
+
+namespace GongSolutions.Wpf.DragDrop
+{
+    public class DropTargetAdorners
+    {
+        /// <summary>
+        /// Gets the type of the default highlight target adorner.
+        /// </summary>
+        public static Type Highlight { get; } = typeof(DropTargetHighlightAdorner);
+
+        /// <summary>
+        /// Gets the type of the default insert target adorner.
+        /// </summary>
+        public static Type Insert { get; } = typeof(DropTargetInsertionAdorner);
+    }
+}