一、启动Inventor

Inventor.Application对象是基于COM开发Inventor的出发点，以下是我封装获取Inventor Application方法：

 1         /// <summary>
 2         /// 获取InventorApplication对象
 3         /// </summary>
 4         /// <returns>InventorApplication对象</returns>
 5         public static Application GetInventorApp()
 6         {
 7             Inventor.Application inventorApp = null;
 8             try
 9             {
10                 inventorApp = Marshal.GetActiveObject("Inventor.Application") as Inventor.Application;
11             }
12             catch
13             {
14                 var inventorType = Type.GetTypeFromProgID("Inventor.Application");
15                 inventorApp = Activator.CreateInstance(inventorType) as Inventor.Application;
16                 inventorApp.Visible = true;
17             }
18             return inventorApp;
19         }       

二、创建和打开零件文档

（1）创建零件文档

1                PartDocument partDoc = inventorApp.Documents.Add(
2                 DocumentTypeEnum.kPartDocumentObject,
3                 inventorApp.FileManager.GetTemplateFile(DocumentTypeEnum.kPartDocumentObject, SystemOfMeasureEnum.kDefaultSystemOfMeasure, DraftingStandardEnum.kDefault_DraftingStandard, null),
4                 true) as PartDocument; 

（2）打开零件文档

1 PartDocument partDoc = (PartDocument)inventorApp.Documents.Open(fileName,true);

三、创建和打开部件文档

（1）创建部件文档

1               AssemblyDocument asmDoc = inventorApp.Documents.Add(
2                 DocumentTypeEnum.kAssemblyDocumentObject,
3                 inventorApp.FileManager.GetTemplateFile(DocumentTypeEnum.kAssemblyDocumentObject, SystemOfMeasureEnum.kDefaultSystemOfMeasure, DraftingStandardEnum.kDefault_DraftingStandard, null),
4                 true) as AssemblyDocument;

（2）打开部件件文档

1 AssemblyDocument asmDoc = (AssemblyDocument )inventorApp.Documents.Open(fileName,true);