public static string GetMimeType(string fileName)
{
if (!string.IsNullOrEmpty(fileName))
{
string ext = Path.GetExtension(fileName).ToLowerInvariant();
if (!string.IsNullOrEmpty(ext))
{
string mimeType = MimeTypes.GetMimeType(ext);
if (!string.IsNullOrEmpty(mimeType))
{
return(mimeType);
}
mimeType = RegistryHelpers.GetValueString(ext, "Content Type", RegistryHive.ClassesRoot);
if (!string.IsNullOrEmpty(mimeType))
{
return(mimeType);
}
}
}
return(MimeTypes.DefaultMimeType);
}
private static string GetSystemOptionString(string name)
{
string value = RegistryHelpers.GetValueString(RegistryPath, name, RegistryHive.LocalMachine);
if (value == null)
{
value = RegistryHelpers.GetValueString(RegistryPath, name, RegistryHive.CurrentUser);
}
return(value);
}