高分求教--------怎样打开WORD，并判断其能否打开？

Question

[C#] 
using System;
using System.Diagnostics;
using System.ComponentModel;namespace MyProcessSample
{
    /// <summary>
    /// Shell for the sample.
    /// </summary>
    public class MyProcess
    {
        // These are the Win32 error code for file not found or access denied.
        const int ERROR_FILE_NOT_FOUND =2;
        const int ERROR_ACCESS_DENIED = 5;        /// <summary>
        /// Prints a file with a .doc extension.
        /// </summary>
        public void PrintDoc()
        {
            Process myProcess = new Process();
            
            try
            {
                // Get the path that stores user documents.
                string myDocumentsPath = 
                    Environment.GetFolderPath(Environment.SpecialFolder.Personal);                myProcess.StartInfo.FileName = myDocumentsPath + "\\MyFile.doc"; 
                myProcess.StartInfo.Verb = "Print";
                myProcess.StartInfo.CreateNoWindow = true;
                myProcess.Start();
            }
            catch (Win32Exception e)
            {
                if(e.NativeErrorCode == ERROR_FILE_NOT_FOUND)
                {
                    Console.WriteLine(e.Message + ". Check the path.");
                }                 else if (e.NativeErrorCode == ERROR_ACCESS_DENIED)
                {
                    // Note that if your word processor might generate exceptions
                    // such as this, which are handled first.
                    Console.WriteLine(e.Message + 
                        ". You do not have permission to print this file.");
                }
            }
        }
        public static void Main()
        {
            MyProcess myProcess = new MyProcess();
            myProcess.PrintDoc();
        }
    }
}
[C#] 
using System;
using System.Diagnostics;
using System.ComponentModel;namespace MyProcessSample
{
    /// <summary>
    /// Shell for the sample.
    /// </summary>
    public class MyProcess
    {
        // These are the Win32 error code for file not found or access denied.
        const int ERROR_FILE_NOT_FOUND =2;
        const int ERROR_ACCESS_DENIED = 5;        /// <summary>
        /// Prints a file with a .doc extension.
        /// </summary>
        public void PrintDoc()
        {
            Process myProcess = new Process();
            
            try
            {
                // Get the path that stores user documents.
                string myDocumentsPath = 
                    Environment.GetFolderPath(Environment.SpecialFolder.Personal);                myProcess.StartInfo.FileName = myDocumentsPath + "\\MyFile.doc"; 
                myProcess.StartInfo.Verb = "Print";
                myProcess.StartInfo.CreateNoWindow = true;
                myProcess.Start();
            }
            catch (Win32Exception e)
            {
                if(e.NativeErrorCode == ERROR_FILE_NOT_FOUND)
                {
                    Console.WriteLine(e.Message + ". Check the path.");
                }                 else if (e.NativeErrorCode == ERROR_ACCESS_DENIED)
                {
                    // Note that if your word processor might generate exceptions
                    // such as this, which are handled first.
                    Console.WriteLine(e.Message + 
                        ". You do not have permission to print this file.");
                }
            }
        }
        public static void Main()
        {
            MyProcess myProcess = new MyProcess();
            myProcess.PrintDoc();
        }
    }
}
有密码不知道怎么判断和处理

Answer 1

打开的了文件会和用word打开是一样的弹出对话框，要求输入密码的．
其实用：
  try{if openFileDialog.showDialog()==DialogResult.ok
  //打开文件；}
catch(Exception ee)
{MessageBox.show("打开文件出错！"）；
｝也可以的．