添加项目文件。

Szmedi.Toolkit.Revit/RvAssists/ReferenceSelectionFilter.cs

@@ -0,0 +1,28 @@
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI.Selection;
+
+namespace Szmedi.Toolkit.RvAssists
+{
+    /// <summary>
+    /// 参考选择过滤过滤器
+    /// </summary>
+    public class ReferenceSelectionFilter : ISelectionFilter
+    {
+        private readonly ElementReferenceType referenceType;
+
+        public ReferenceSelectionFilter(ElementReferenceType referenceType)
+        {
+            this.referenceType = referenceType;
+        }
+
+        public bool AllowElement(Element elem)
+        {
+            return true;
+        }
+
+        public bool AllowReference(Reference reference, XYZ position)
+        {
+            return referenceType == reference.ElementReferenceType;
+        }
+    }
+}