添加项目文件。

DotNet.RevitUI/MVVM/IExecuteWithObject.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace DotNet.RevitUI.MVVM
+{
+    interface IExecuteWithObject
+    {
+        object Target
+        {
+            get;
+        }
+      
+        void ExecuteWithObject(object parameter);
+
+        void MarkForDeletion();
+    }
+}