System.Data.DataSet.TableChanges.this C# (CSharp) Метод

            internal bool this[int index]
            {
                get { return _rowChanges[index]; }
                set
                {
                    Debug.Assert(value && !_rowChanges[index], "setting twice or to false");
                    _rowChanges[index] = value;
                    HasChanges++;
                }
            }
        }