Microsoft.Office.Core 引用以及 Microsoft.Office.Core.MsoTriState 的问题

转自原文 xiaoanian， Microsoft.Office.Core 引用以及 Microsoft.Office.Core.MsoTriState 的问题

因为要做一个提取ppt文字的工程,第一次接触Office开发.

以下是源码:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using PowerPoint = Microsoft.Office.Interop.PowerPoint;
    using Microsoft.Office.Core;
    using System.Runtime.InteropServices;
    namespace ConsoleApplication1
    {
        public class Program
        {
            public static void Main(string[] args)
            {
                String fileName = "F://test.ppt";
                Program.Parse(fileName);
            }
            public static void Parse(String fileName)
            {
                try
                {
                    PowerPoint.Application pa = new PowerPoint.ApplicationClass();
                    PowerPoint.Presentation pp = pa.Presentations.Open(fileName,
                                                                                                          Microsoft.Office.Core.MsoTriState.msoTrue,
                                                                                                          Microsoft.Office.Core.MsoTriState.msoFalse,
                                                                                                          Microsoft.Office.Core.MsoTriState.msoFalse);
                    Console.WriteLine("Open Success");
                    PowerPoint.TextFrame frame;
                    String text;
                    foreach (PowerPoint.Slide slide in pp.Slides)
                    {
                        foreach (PowerPoint.Shape shape in slide.Shapes)
                        {  

                            if (shape.HasTextFrame == Microsoft.Office.Core.MsoTriState.msoTrue)
                            {
                                frame = shape.TextFrame;
                                if (frame.HasText == Microsoft.Office.Core.MsoTriState.msoTrue)
                                {  

                                    text = frame.TextRange.Text;
                                    Console.WriteLine(text);
                                }
                            }
                        }
                    }
                }
                catch (Exception e)
                {
                    Console.WriteLine(e.Message);
                }
            }
        }
    }  

代码倒挺简单,但是添加引用废了我半天的力气。其中，引用中出现以下内容：

(1).net中有Microsoft.Office.Interop.PowerPoint, Office

(2) com中有Microsoft.Office 1x.0 Object library

Microsoft.Office.Interop.PowerPoint肯定是要添加的.

但Office和Microsoft.Office 1x.0 Object library添加谁?

只添加Office足以（如上图中圈出的那个组件）!

实践证明,

(1)如果只添加Microsoft.Office 1x.0 Object library,会出现下面的错误:

错误 1 类型“Microsoft.Office.Core.MsoTriState”在未被引用的程序集中定义。必须添加对程序集“office, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c”的引用

(2)如果Office和Microsoft.Office 1x.0 Object library都添加,就会出现下面的错误:

错误 1 类型“Microsoft.Office.Core.MsoTriState”同时存在于“E:/Program Files/Microsoft Visual Studio 9.0/Visual Studio Tools for Office/PIA/Office12/Office.dll”和“C:/Documents and Settings/Administrator/我的文档/Visual Studio 2008/Projects/PPTPaser/ConsoleApplication1/obj/Debug/Interop.Microsoft.Office.Core.dll”中

原因是MsoTriState在两个dll中都出现了。正确做法:只添加Office引用即可