How to check if an URI is FTP

gistfile1.cs

Uri sourceBaseUri;
var isValidUri = Uri.TryCreate("ftp://somedomain.com/somefolder/someotherfolder/somefile.zip", UriKind.Absolute, out sourceBaseUri);

if(isValidUri)
{
   Console.WriteLine("URI is valid");
}

if(sourceBaseUri.Scheme == Uri.UriSchemeFtp)
{
   Console.WriteLine("URI is FTP");
}

if(sourceBaseUri.Scheme == Uri.UriSchemeFile)
{
	Console.WriteLine("URI is File");
}