// 轉(zhuǎn)化類

// pathinfo 選擇文件夾位置

// file 對象名

public void TranWordDocToDocx(string pathinfo, string file)

        {

            Microsoft.Office.Interop.Word.Application word = new Microsoft.Office.Interop.Word.Application();

            Microsoft.Office.Interop.Word.Document doc = new Microsoft.Office.Interop.Word.Document();

            object oMissing = System.Reflection.Missing.Value;

            Object ConfirmConversions = false;

            Object ReadOnly = false;

            Object AddToRecentFiles = false;

            Object PasswordDocument = "";

            Object PasswordTemplate = System.Type.Missing;

            Object Revert = System.Type.Missing;

            Object WritePasswordDocument = System.Type.Missing;

            Object WritePasswordTemplate = System.Type.Missing;

            Object Format = System.Type.Missing;

            Object Encoding = System.Type.Missing;

            Object Visible = System.Type.Missing;

            Object OpenAndRepair = System.Type.Missing;

            Object DocumentDirection = System.Type.Missing;

            Object NoEncodingDialog = System.Type.Missing;

            Object XMLTransform = System.Type.Missing;

            Object fileName = pathinfo + "\\" + file;

            doc = word.Documents.Open(ref fileName, ref ConfirmConversions,

            ref ReadOnly, ref AddToRecentFiles, ref PasswordDocument, ref PasswordTemplate,

            ref Revert, ref WritePasswordDocument, ref WritePasswordTemplate, ref Format,

            ref Encoding, ref Visible, ref OpenAndRepair, ref DocumentDirection,

            ref NoEncodingDialog, ref XMLTransform);

            DirectoryInfo directory = new DirectoryInfo(pathinfo + "\\docx");

            if (!directory.Exists)//不存在

            {

                directory.Create();

            }

            object path = pathinfo + "\\docx\\" + file.Substring(0, file.Length - 4);

            //以下參數(shù)控制轉(zhuǎn)換類型，網(wǎng)上查到的全是錯誤的，是doc類型

            object format = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatXMLDocument;

            doc.SaveAs(ref path, ref format, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing);

            doc.Close(ref oMissing, ref oMissing, ref oMissing);

            word.Quit(ref oMissing, ref oMissing, ref oMissing);

        }

//調(diào)用實例

private void button1_Click(object sender, EventArgs e)

        {

            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)

            {

                this.txtDocPaths.Text = folderBrowserDialog1.SelectedPath;

            }

            DirectoryInfo folder = new DirectoryInfo(this.txtDocPaths.Text);

            foreach (FileInfo file in folder.GetFiles("*.doc"))

            {

                if (file.ToString().IndexOf("$") == -1)

                {

                    this.lblMsg.Text = string.Format("當前處理的文件：{0}", file.FullName);

                    this.lblMsg.Refresh();

                    TranWordDocToDocx(this.txtDocPaths.Text, file.ToString());

                }

            }

        }

//using

using Microsoft.CodeAnalysis;

using Microsoft.Office.Interop.Word;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;