添加项目

RevitAddin/Revit/App.cs

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+using System;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using ricaun.Revit.UI;
+
+
+namespace RevitAddin.Revit
+{
+    [AppLoader]
+    public class App : IExternalApplication
+    {
+        private RibbonPanel ribbonPanel;
+        public Result OnStartup(UIControlledApplication application)
+        {
+            ribbonPanel = application.CreatePanel("RevitAddin");
+            ribbonPanel.CreatePushButton<Commands.Command>()
+                .SetLargeImage("Resources/Revit.ico");
+            return Result.Succeeded;
+        }
+
+        public Result OnShutdown(UIControlledApplication application)
+        {
+            ribbonPanel?.Remove();
+            return Result.Succeeded;
+        }
+    }
+
+}

RevitAddin/Revit/Commands/Command.cs

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+using System;
+using System.Reflection;
+using Autodesk.Revit.Attributes;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace RevitAddin.Revit.Commands
+{
+    [Transaction(TransactionMode.Manual)]
+    public class Command : IExternalCommand
+    {
+        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elementSet)
+        {
+            UIApplication uiapp = commandData.Application;
+
+            System.Windows.MessageBox.Show(uiapp.Application.VersionName);
+
+            return Result.Succeeded;
+        }
+    }
+}