读取注册表根据Office版本获取数据库连接字段

/// <summary>
/// 读取注册表，根据Office版本获取数据库连接字段
/// </summary>
/// <returns>数据库连接字段</returns>
private string GetConnectionString()
{
string strConnectionString = \”Provider=Microsoft.Jet.OLEDB.4.0;Data Source = \”;

RegistryKey rk = Registry.LocalMachine;
//查询Office2003
RegistryKey f03 = rk.OpenSubKey(@\”SOFTWARE\\Microsoft\\Office\\11.0\\Access\\InstallRoot\\\”);
//查询Office2007
RegistryKey f07 = rk.OpenSubKey(@\”SOFTWARE\\Microsoft\\Office\\12.0\\Access\\InstallRoot\\\”);
//查询Office2010
RegistryKey f10 = rk.OpenSubKey(@\”SOFTWARE\\Microsoft\\Office\\14.0\\Access\\InstallRoot\\\”);

if (f03 != null)
{
strConnectionString = \”Provider=Microsoft.Jet.OLEDB.4.0;Data Source = \”;
}
else if (f07 != null || f10 != null)
{
strConnectionString = \”Provider=Microsoft.ACE.OLEDB.12.0;Data Source = \”;
}

return strConnectionString;
}