添加项目文件。

Test.DotNet.RevitUI (2016)/Command/FlowButton2Command.cs

@@ -0,0 +1,26 @@
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using DotNet.RevitUI;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Test.DotNet.RevitUI.Command
+{
+    public class FlowButton2Command : RevitCommand
+    {
+        protected override bool CanExecute(Autodesk.Windows.RibbonItem parameter)
+        {
+            return true;
+        }
+
+        protected override Result Invoke(ExternalCommandData commandData, ref string message, ElementSet elements)
+        {
+            Autodesk.Revit.UI.TaskDialog.Show("提示", "测试  Flow Button2 Command 有效点击 ");
+
+            return Result.Succeeded;
+        }
+    }
+}