System.Data.ConstraintCollection.FinishInitConstraints C# (CSharp) Метод

        internal void FinishInitConstraints()
        {
            if (_delayLoadingConstraints == null)
                return;

            int colCount;
            DataColumn[] parents, childs;
            for (int i = 0; i < _delayLoadingConstraints.Length; i++)
            {
                if (_delayLoadingConstraints[i] is UniqueConstraint)
                {
                    if (_fLoadForeignKeyConstraintsOnly)
                        continue;

                    UniqueConstraint constr = (UniqueConstraint)_delayLoadingConstraints[i];
                    if (constr._columnNames == null)
                    {
                        Add(constr);
                        continue;
                    }
                    colCount = constr._columnNames.Length;
                    parents = new DataColumn[colCount];
                    for (int j = 0; j < colCount; j++)
                        parents[j] = _table.Columns[constr._columnNames[j]];
                    if (constr._bPrimaryKey)
                    {
                        if (_table._primaryKey != null)
                        {
                            throw ExceptionBuilder.AddPrimaryKeyConstraint();
                        }
                        else
                        {
                            Add(constr.ConstraintName, parents, true);
                        }
                        continue;
                    }
                    UniqueConstraint newConstraint = new UniqueConstraint(constr._constraintName, parents);
                    if (FindConstraint(newConstraint) == null)
                        Add(newConstraint);
                }
                else
                {
                    ForeignKeyConstraint constr = (ForeignKeyConstraint)_delayLoadingConstraints[i];
                    if (constr._parentColumnNames == null || constr._childColumnNames == null)
                    {
                        Add(constr);
                        continue;
                    }

                    if (_table.DataSet == null)
                    {
                        _fLoadForeignKeyConstraintsOnly = true;
                        continue;
                    }

                    colCount = constr._parentColumnNames.Length;
                    parents = new DataColumn[colCount];
                    childs = new DataColumn[colCount];
                    for (int j = 0; j < colCount; j++)
                    {
                        if (constr._parentTableNamespace == null)
                            parents[j] = _table.DataSet.Tables[constr._parentTableName].Columns[constr._parentColumnNames[j]];
                        else
                            parents[j] = _table.DataSet.Tables[constr._parentTableName, constr._parentTableNamespace].Columns[constr._parentColumnNames[j]];
                        childs[j] = _table.Columns[constr._childColumnNames[j]];
                    }
                    ForeignKeyConstraint newConstraint = new ForeignKeyConstraint(constr._constraintName, parents, childs);
                    newConstraint.AcceptRejectRule = constr._acceptRejectRule;
                    newConstraint.DeleteRule = constr._deleteRule;
                    newConstraint.UpdateRule = constr._updateRule;
                    Add(newConstraint);
                }
            }

            if (!_fLoadForeignKeyConstraintsOnly)
                _delayLoadingConstraints = null;
        }
    }