判断机器是否有安装excel

//判断机器是否有安装excel
Type type = Type.GetTypeFromProgID("Excel.Application");

今天改bug的时候,突然有个要求需要判断机器是否有安装excel,如果没有安装,用dev控件导出excel会出错.俺就在网上狂搜了,结果搜到这句最简便,还有可以使用检查注册表的方式.

注册表方式:

代码

using System;
using System.Collections.Generic;
using System.Text;

namespace WpsTest
{
public class OfficeOperator
{
#region 方法

#region public static
/// <summary>
/// 检测MS-Office是否正确安装
/// 通过注册表检测
/// </summary>
/// <param name="version">获得安装的版本号，如office2000,office2003,office2007</param>
/// <returns></returns>
public static bool IsInstall(out string Version)
{
bool result = false;
string officePath = "";
string officeVersion = "";

Version = "";
GetOfficePath(out officePath, out officeVersion);

if (!string.IsNullOrEmpty(officeVersion) && !string.IsNullOrEmpty(officePath))
{
result = true;
Version = officeVersion;
}

return result;
}

/// <summary>
/// 获取当前某个版本Office的安装路径
/// </summary>
/// <param name="Path">返回当前系统Office安装路径</param>
/// <param name="Version">返回当前系统Office版本信息</param>
public static void GetOfficePath(out string Path,out string Version)
{
string strPathResult = "";
string strVersionResult = "";
string strKeyName = "Path";
object objResult = null;
Microsoft.Win32.RegistryValueKind regValueKind;
Microsoft.Win32.RegistryKey regKey = null;
Microsoft.Win32.RegistryKey regSubKey = null;

try
{
regKey = Microsoft.Win32.Registry.LocalMachine;

if (regSubKey == null)
{//office97
regSubKey = regKey.OpenSubKey(@"SOFTWARE\Microsoft\Office\8.0\Common\InstallRoot", false);
strVersionResult = "office97";
strKeyName = "OfficeBin";
}

if (regSubKey == null)
{//Office2000
regSubKey = regKey.OpenSubKey(@"SOFTWARE\Microsoft\Office\9.0\Common\InstallRoot", false);
strVersionResult = "office2000";
strKeyName = "Path";
}

if (regSubKey == null)
{//officeXp
regSubKey = regKey.OpenSubKey(@"SOFTWARE\Microsoft\Office\10.0\Common\InstallRoot", false);
strVersionResult = "officeXP";
strKeyName = "Path";
}

if (regSubKey == null)
{//Office2003
regSubKey = regKey.OpenSubKey(@"SOFTWARE\Microsoft\Office\11.0\Common\InstallRoot", false);
strVersionResult = "office2003";
strKeyName = "Path";
}

if (regSubKey == null)
{//office2007
regSubKey = regKey.OpenSubKey(@"SOFTWARE\Microsoft\Office\12.0\Common\InstallRoot", false);
strVersionResult = "office2007";
strKeyName = "Path";
}

objResult = regSubKey.GetValue(strKeyName);
regValueKind = regSubKey.GetValueKind(strKeyName);
if (regValueKind == Microsoft.Win32.RegistryValueKind.String)
{
strPathResult = objResult.ToString();
}
}
catch (System.Security.SecurityException ex)
{
throw new System.Security.SecurityException("您没有读取注册表的权限", ex);
}
catch (Exception ex)
{
throw new Exception("读取注册表出错!", ex);
}
finally
{

if (regKey != null)
{
regKey.Close();
regKey = null;
}

if (regSubKey != null)
{
regSubKey.Close();
regSubKey = null;
}
}

Path = strPathResult;
Version = strVersionResult;
}
#endregion public static

#endregion 方法
}
}
//使用方法
private void btnGetOfficePath_Click(object sender, EventArgs e)
{
string officePath = "";
string officeVersion = "";
try
{
OfficeOperator.GetOfficePath(out officePath,out officeVersion);
}
catch (Exception ex)
{
MessageBox.Show("无法获取系统Office信息");
}
if (!string.IsNullOrEmpty(officePath) && !string.IsNullOrEmpty(officeVersion))
{
MessageBox.Show(string.Format("版本:{0}\r\n安装路径:{1}",officeVersion,officePath));
}
}

//是否安装及版本
private void btnIsInstall_Click(object sender, EventArgs e)
{
try
{
string version = "";
if (OfficeOperator.IsInstall(out version))
{
MessageBox.Show(string.Format("当前安装了{0}", version));
}
else
{
MessageBox.Show("您当前还没有安装微软Office系列软件");
}
}
catch(Exception ex)
{
MessageBox.Show("无法获取系统Office信息");
}
}