Winform中内嵌显示Office

           OpenFileDialog dialog = new OpenFileDialog();
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                string filename = dialog.FileName;
                if (filename.Contains(".pdf"))
                {
                    chromiumWebBrowser1.Load(filename);//PDF预览插件CefSharp，nuget包里面有CefSharp.winform
                }
                else
                {
                    axfc.Open(filename);                    
                }
                    
            }

打开winform的Form窗体，单击工具箱，将dsoframer.ocx拖入工具箱，就可以使用了

下载https://files.cnblogs.com/pingming/dsoframerocx.rar

自己收藏的网盘链接

链接：https://pan.baidu.com/s/1Kzay48NixztgbczejO8MrA
提取码：7puy

使用dapper从数据库读取数据库存放的文件，并下载显示到界面上

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CAXADemo
{
    public static class SqlHelper
    {
        static string sqlconnectionString = ConfigurationManager.ConnectionStrings["sqlconn"].ToString();
        public static SqlConnection SqlConnection()
        {
            SqlConnection connection = new SqlConnection(sqlconnectionString);
            connection.Open();
            return connection;
        }
    }
}

            try
            {
                using (var conn = SqlHelper.SqlConnection())
                {
                    string sql = "select  top 1 * from [Experience_File](nolock) where fileext ='.docx' ";
                    MyFile file = conn.Query<MyFile>(sql).FirstOrDefault();
                    byte[] fileBytes = file.FileContent;
                    //创建文件
                    string filename = string.Format("{0}{1}", file.FileName, file.FileExt);
                    FileStream fs = File.Create(filename, fileBytes.Length);
                    fs.Write(fileBytes, 0, fileBytes.Length);
                    fs.Close();

                    if (filename.Contains(".pdf"))
                    {
                        chromiumWebBrowser1.Visible = true;
                        axfc.Visible = false;
                        chromiumWebBrowser1.Load(AppDomain.CurrentDomain.BaseDirectory+filename);
                    }
                    else
                    {
                        chromiumWebBrowser1.Visible = false;
                        axfc.Visible = true;
                        axfc.Open(AppDomain.CurrentDomain.BaseDirectory + filename);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

显示效果

WORD

EXCEL

 

PPT

 

PDF

DSOFramer.ocx 控件使用
接口文档：

/*
1.新建
*/
//新建Word
document.all.FramerControl1.CreateNew("Word.Document");
//新建Excel
document.all.FramerControl1.CreateNew("Excel.Sheet");

/*
2.打开文件
*/
//打开制定的本地文件
document.all.FramerControl1.Open("C:\\TestBook.xls");
//制定用Word来打开c:\plain.txt文件
document.all.FramerControl1.Open("C:\\Plain.txt",false, "Word.Document");
//打开服务器的文件
document.all.FramerControl1.Open "https://secureserver/test/mytest.asp?id=123",true, "Excel.Sheet", "MyUserAccount", "MyPassword");
//打开服务器的文件
document.all.FramerControl1.Open("http://localhost/1.doc", true);

/*
3.保存文件
*/
//到本地
document.all.FramerControl1.Save("c:\\1.doc",true);
//服务器
/*增加Http协议Post上传接口,可以Post一个动态页面(jsp,asp,php...),由动态页面负责解析数据
bool HttpInit();
bool HttpAddPostString(BSTR strName, BSTR strValue);
bool HttpAddPostCurrFile(BSTR strFileID, BSTR strFileName);
BSTR HttpPost(BSTR bstr);
*/

//初始化Http引擎
document.all.FramerControl1.HttpInit();
//增加Post变量
document.all.FramerControl1.HttpAddPostString("RecordID","20060102200");
document.all.FramerControl1.HttpAddPostString("UserID","李局长");
//上传打开的文件
document.all.FramerControl1.HttpAddPostCurrFile("FileData", "文档名.doc");
//执行上传动作
document.all.FramerControl1.HttpPost("http://xxxx.com/uploadfile.asp");

/*
4.修订留痕
*/
//进入留痕状态
document.all.FramerControl1.SetTrackRevisions(1);
//进入非留痕状态
document.all.FramerControl1.SetTrackRevisions(0);
//接受当前修订
document.all.FramerControl1.SetTrackRevisions(4);

/*
5.设置当前用户
*/
document.all.FramerControl1.SetCurrUserName("张三");

/*
6.设置当前时间(笔迹留痕会显示("Like 2006:02:07 11:11:11")
*/
document.all.FramerControl1.SetCurrTime("2006:02:07 11:11:11");

/*
7.设置和创建书签，此功能比较强大，设置书签数据、添加书签和添加红头文件就靠他了
SetFieldValue(BSTR strFieldName, BSTR strValue, BSTR strCmdOrSheetName)
strFieldName:书签名
strValue：要设置的值
strCmdOrSheetName：
命令
::ADDMARK:: 添加BookMark
::DELMARK:: 删除这个BookMark
::GETMARK:: 定位到这个BookMark
::FILE:: 插入的是文件
::JPG:: 插入的是图片
一般来说：WORD中书签是做好的，可以通过此接口把外界数据设置进书签中去。
*/
//在当前WORD位置插入标签,标签名为"book1",数值为"test"
document.all.FramerControl1.SetFieldValue("book1","test","::ADDMARK::");

//设置书签"Time",数值为"2006-03-16 22:22:22"
document.all.FramerControl1.SetFieldValue("Time","2006-03-16 22:22:22","");

//在书签位置"hongtou",插入红头文件"http://222.222.222.222/hongtou1.doc" 这样，红头就自动插进去了
document.all.FramerControl1.SetFieldValue("hongtou","http://222.222.222.222/hongtou1.doc","::FILE::");

/*
8.设置菜单显示情况
BOOL SetMenuDisplay(long lMenuFlag)
lMenuFlag为以下数值的组合
#define MNU_NEW 0x01
#define MNU_OPEN 0x02
#define MNU_CLOSE 0x04
#define MNU_SAVE 0x08
#define MNU_SAVEAS 0x16
#define MNU_PGSETUP 0x64
#define MNU_PRINT 0x256
#define MNU_PROPS 0x32
#define MNU_PRINTPV 0x126
*/
//只有“新建”菜单可用
document.all.FramerControl1..SetMenuDisplay(1);
//只有“打开”菜单可用
document.all.FramerControl1.SetMenuDisplay(2);
//只有“打开”和“新建”菜单可用
document.all.FramerControl1.SetMenuDisplay(3);

/*
9.保护文档和解保护文档
lProOrUn:1:保护文档；0:解除保护
lProType:
wdNoProtection = -1,
wdAllowOnlyRevisions = 0,
wdAllowOnlyComments = 1,
wdAllowOnlyFormFields = 2
strProPWD:密码
*/
//完全保护文档，密码为"pwd"
document.all.FramerControl1.ProtectDoc(1,1,"pwd");
//解除文档保护
document.all.FramerControl1.ProtectDoc(0,1,"pwd");

/*
10.显示或隐藏修订内容
ShowRevisions(long nNewValue)
nNewValue = 0 则隐藏修订
= 1 则显示修订
*/
//显示修订留痕
document.all.FramerControl1.ShowRevisions(1);
//隐藏修订留痕
document.all.FramerControl1.ShowRevisions(0);

/*
11.插入合并文件，
strFieldPath 文件路径,可以是http,ftp的路径

pPos = 0 //当前鼠标位置
1;文件开头
2;文件末尾

pPos的第4位为1的时候，代表插入的是图片
InSertFile(BSTR strFieldPath, long lPos)
*/
//文件头部插入文件
document.all.FramerControl1.InSertFile("http://XX.com/XX.doc",1);
//文件尾部插入文件
document.all.FramerControl1.InSertFile("http://XX.com/XX.doc",2);
//当前光标位置插入文件
document.all.FramerControl1.InSertFile("http://XX.com/XX.doc",0);

//文件头部插入图片
document.all.FramerControl1.InSertFile("http://XX.com/XX.jpg",9);
//文件尾部插入图片
document.all.FramerControl1.InSertFile("http://XX.com/XX.jpg",10);
//当前光标位置插入图片
document.all.FramerControl1.InSertFile("http://XX.com/XX.jpg",8);

/*
0x31. 文档另存为
HRESULT SaveAs([in] VARIANT strFileName, [in] VARIANT dwFileFormat, [out,retval] long* pbool);
参数：
strFileName：文件本地路径，如c:\\11.doc
dwFileFormat: 文件格式
dwFileFormat的数值为：
Excel: Type
enum XlFileFormat
{
xlAddIn = 18,
xlCSV = 6,
xlCSVMac = 22,
xlCSVMSDOS = 24,
xlCSVWindows = 23,
xlDBF2 = 7,
xlDBF3 = 8,
xlDBF4 = 11,
xlDIF = 9,
xlExcel2 = 16,
xlExcel2FarEast = 27,
xlExcel3 = 29,
xlExcel4 = 33,
xlExcel5 = 39,
xlExcel7 = 39,
xlExcel9795 = 43,
xlExcel4Workbook = 35,
xlIntlAddIn = 26,
xlIntlMacro = 25,
xlWorkbookNormal = -4143,
xlSYLK = 2,
xlTemplate = 17,
xlCurrentPlatformText = -4158,
xlTextMac = 19,
xlTextMSDOS = 21,
xlTextPrinter = 36,
xlTextWindows = 20,
xlWJ2WD1 = 14,
xlWK1 = 5,
xlWK1ALL = 31,
xlWK1FMT = 30,
xlWK3 = 15,
xlWK4 = 38,
xlWK3FM3 = 32,
xlWKS = 4,
xlWorks2FarEast = 28,
xlWQ1 = 34,
xlWJ3 = 40,
xlWJ3FJ3 = 41,
xlUnicodeText = 42,
xlHtml = 44
};
Word: Type
enum WdSaveFormat
{
wdFormatDocument = 0,
wdFormatTemplate = 1,
wdFormatText = 2,
wdFormatTextLineBreaks = 3,
wdFormatDOSText = 4,
wdFormatDOSTextLineBreaks = 5,
wdFormatRTF = 6,
wdFormatUnicodeText = 7,
wdFormatEncodedText = 7,
wdFormatHTML = 8
};
PPT:
enum PpSaveAsFileType
{
ppSaveAsPresentation = 1,
ppSaveAsPowerPoint7 = 2,
ppSaveAsPowerPoint4 = 3,
ppSaveAsPowerPoint3 = 4,
ppSaveAsTemplate = 5,
ppSaveAsRTF = 6,
ppSaveAsShow = 7,
ppSaveAsAddIn = 8,
ppSaveAsPowerPoint4FarEast = 10,
ppSaveAsDefault = 11,
ppSaveAsHTML = 12,
ppSaveAsHTMLv3 = 13,
ppSaveAsHTMLDual = 14,
ppSaveAsMetaFile = 15,
ppSaveAsGIF = 16,
ppSaveAsJPG = 17,
ppSaveAsPNG = 18,
ppSaveAsBMP = 19
};

*/


/*
0x32. 删除本地文件
HRESULT DeleteLocalFile([in] BSTR strFilePath);
参数：
strFileName：文件本地路径，如c:\\11.doc
*/

/*
0x33.创建临时文件
HRESULT GetTempFilePath([out,retval] BSTR* strValue);
返回：
临时文件的路径地址。使用完后，用DeleteLocalFile 删除

*/

/*
0x34.设置文档显示模式
HRESULT ShowView([in] long dwViewType, [out,retval] long * pbool);
dwViewType的可取值为：
enum WdViewType
{
wdNormalView = 1,
wdOutlineView = 2,
wdPrintView = 3,
wdPrintPreview = 4,
wdMasterView = 5, //这个是大纲
wdWebView = 6
};
*/
//大纲模式
document.all.FramerControl1.ShowView(5);

/*
0x39:下载远程文件
HRESULT DownloadFile( [in] BSTR strRemoteFile, [in] BSTR strLocalFile, [out,retval] BSTR* strValue);
参数：
strRemoteFile：远程路径地址,http or Ftp
strLocalFile: 本地保存地址，if strLocalFile == NULL then Create Temp File and return TempFile's Path

*/

/*
0x40：增加Http上传时候的，附加其他文件
HRESULT HttpAddPostFile([in] BSTR strFileID, [in] BSTR strFileName, [out,retval] long* pbool);
参数：
strFileID：文件的ID，供服务器端页面解析
strFileName: 本地文件地址

*/

/*
0x41,0x42.获取详细的修订信息。
GetRevCount( [out,retval] long * pbool);
GetRevInfo([in] long lIndex, [in] long lType, [out,retval] BSTR* pbool);
例子如下
*/
var vCount;
vCount = document.all.FramerControl1.GetRevCount();
alert(vCount);
var vOpt = 0;
var vDate;
for(var i=1; i<= vCount; i++){
vOpt = document.all.FramerControl1.GetRevInfo(i,2);
if("1" == vOpt){
vOpt = "插入";
}else if("2" == vOpt){
vOpt = "删除";
}else{
vOpt = "未知操作";
}
vDate = new String(document.all.FramerControl1.GetRevInfo(i,1));
vDate = parseFloat(vDate);
alert(vDate);
dateObj = new Date(vDate);

alert(dateObj.getYear() + "年" + dateObj.getMonth() + 1 + "月" + dateObj.getDate() +"日" + dateObj.getHours() +"时" + dateObj.getMinutes() +"分" + dateObj.getSeconds() +"秒" );
alert("用户:"+document.all.FramerControl1.GetRevInfo(i,0) + "\r\n操作:" + vOpt + "\r\n内容:" + document.all.FramerControl1.GetRevInfo(i,3));
}

/*
0x43.设置基本信息：
HRESULT SetValue([in] BSTR strValue, [in] BSTR strName, [out,retval] long* pbool);

1.设置文件只读密码
SetValue("password","::DOCPROP:PassWord");
2.设置文件修改密码
SetValue("password","::DOCPROP:WritePW");
返回值：
0 正确
-1：不支持此命令，请确定您的第二个参数没有传错
-127:异常
*/
//设置文件只读密码
document.all.FramerControl1.SetValue("password","::DOCPROP:PassWord");
//设置文件修改密码
document.all.FramerControl1.SetValue("password","::DOCPROP:WritePW");

/*
0x44.设置文档变量，这个很少能用到
HRESULT SetDocVariable([in] BSTR strVarName, [in] BSTR strValue,[in] long lOpt, [out,retval] long* pbool);

strVarName: 变量名
strVlaue:变量值
lOpt: 操作类型，
按位
第一位为1: 表示update域关联的
第二位为1: 表示如果没有这个变量则添加
第三位为1: 未来支持
return:
0:OK
-127:异常
*/
/*
0x45: 分页保存
HRESULT SetPageAs([in] BSTR strLocalFile, [in] long lPageNum, [in] long lType,[out,retval] long* pbool);
strLocalFile：本地路径
lPageNum：页数
*/
https://blog.csdn.net/qq_34769196/article/details/110511741