添加项目文件。

Sai.RvKits/RvMEP/RotateInstanceCmd.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using Autodesk.Revit.Attributes;
+
+using Nice3point.Revit.Toolkit.External;
+
+
+namespace Sai.RvKits.RvMEP
+{
+    [Transaction(TransactionMode.Manual)]
+    [Regeneration(RegenerationOption.Manual)]
+    class RotateInstanceCmd : ExternalCommand
+    {
+        public override void Execute()
+        {
+            WinDialogHelper.ShowModeless<RotateMEPView>(new RotateMEPViewModel());
+        }
+    }
+}