System.Data.DataRelation.Clone C# (CSharp) Метод

        internal DataRelation Clone(DataSet destination)
        {
            DataCommonEventSource.Log.Trace("<ds.DataRelation.Clone|INFO> {0}, destination={1}", ObjectID, (destination != null) ? destination.ObjectID : 0);

            DataTable parent = destination.Tables[ParentTable.TableName, ParentTable.Namespace];
            DataTable child = destination.Tables[ChildTable.TableName, ChildTable.Namespace];
            int keyLength = _parentKey.ColumnsReference.Length;

            DataColumn[] parentColumns = new DataColumn[keyLength];
            DataColumn[] childColumns = new DataColumn[keyLength];

            for (int i = 0; i < keyLength; i++)
            {
                parentColumns[i] = parent.Columns[ParentKey.ColumnsReference[i].ColumnName];
                childColumns[i] = child.Columns[ChildKey.ColumnsReference[i].ColumnName];
            }

            DataRelation clone = new DataRelation(_relationName, parentColumns, childColumns, false);

            clone.CheckMultipleNested = false; // disable the check  in clone as it is already created
            clone.Nested = Nested;
            clone.CheckMultipleNested = true; // enable the check 

            // ...Extended Properties
            if (_extendedProperties != null)
            {
                foreach (object key in _extendedProperties.Keys)
                {
                    clone.ExtendedProperties[key] = _extendedProperties[key];
                }
            }
            return clone;
        }