System.Data.DataRelation.Create C# (CSharp) Method

        private void Create(string relationName, DataColumn[] parentColumns, DataColumn[] childColumns, bool createConstraints)
        {
            long logScopeId = DataCommonEventSource.Log.EnterScope("<ds.DataRelation.Create|INFO> {0}, relationName='{1}', createConstraints={2}", ObjectID, relationName, createConstraints);
            try
            {
                _parentKey = new DataKey(parentColumns, true);
                _childKey = new DataKey(childColumns, true);

                if (parentColumns.Length != childColumns.Length)
                {
                    throw ExceptionBuilder.KeyLengthMismatch();
                }

                for (int i = 0; i < parentColumns.Length; i++)
                {
                    if ((parentColumns[i].Table.DataSet == null) || (childColumns[i].Table.DataSet == null))
                    {
                        throw ExceptionBuilder.ParentOrChildColumnsDoNotHaveDataSet();
                    }
                }

                CheckState();

                _relationName = (relationName == null ? "" : relationName);
                _createConstraints = createConstraints;
            }
            finally
            {
                DataCommonEventSource.Log.ExitScope(logScopeId);
            }
        }