Revit 二次开发入门教程--用HelloRevit进行程序调试（第四期）

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Data;  
using Autodesk.Revit; 
using Autodesk.Revit.UI; 
using Autodesk.Revit.UI.Selection;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Architecture;
namespace zpx
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
    [Autodesk.Revit.Attributes.Journaling(Autodesk.Revit.Attributes.JournalingMode.NoCommandData)]
    public class HelloRevit : IExternalCommand
    {
        public Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData, ref string message, Autodesk.Revit.DB.ElementSet elements)
        {
            //创建应用程序对象
            Autodesk.Revit.ApplicationServices.Application app = commandData.Application.Application;
            //创建文档对象
            Autodesk.Revit.DB.Document doc = commandData.Application.ActiveUIDocument.Document;
            //创建应用程序对象
            Autodesk.Revit.UI.UIApplication uiapp = commandData.Application;
            //创建文档对象
            Autodesk.Revit.UI.UIDocument uiDoc = uiapp.ActiveUIDocument;
            //开始事务
  Transaction ts = new Transaction(doc, "HelloRevit");
  ts.Start();
          //这里我们就写了很简单的一行代码，弹框输出HelloRevit
           MessageBox.Show("HelloRevit");
  ts.Commit();
   return Result.Succeeded;
          }
     }
 }