System.IO.Packaging.Check.TargetPartUri C# (CSharp) Method

        public static void TargetPartUri(Uri targetPartUri)
        {
            NotNull(targetPartUri, "targetPartUri");
            PartUriDoesntEndWithSlash(targetPartUri);
        }

        public static Uri GetRelativeUri(Uri sourcePartUri, Uri targetPartUri)
        {
            Check.SourcePartUri(sourcePartUri);
            Check.TargetPartUri(targetPartUri);

            Uri uri = new Uri("http://fake.com");
            Uri a   = new Uri(uri, sourcePartUri.OriginalString);
            Uri b   = new Uri(uri, targetPartUri.OriginalString);

            return(a.MakeRelativeUri(b));
        }