System.Globalization.CultureTableRecord.IsValidSortID C# (CSharp) Method

        internal bool IsValidSortID(int sortID)
        {
            BCLDebug.Assert(sortID >= 0 && sortID <= 0xffff, "sortID is invalid");    // SortID is 16-bit positive integer.
            if(sortID == 0 ||
               (this.SALTSORTID != null &&
                this.SALTSORTID.Length >= sortID &&
                this.SALTSORTID[sortID - 1].Length != 0))
            {
                return true;
            }
            else
            {
                return false;
            }
        }