System.Data.DataExpression.GetDependency C# (CSharp) Метод

        internal DataColumn[] GetDependency()
        {
            Debug.Assert(_dependency != null, "GetDependencies: null, we should have created an empty list");
            return _dependency;
        }

 // Initialize candidate columns to new columnInfo and leave all non candidate columns to null
 private void InitCandidateColumns()
 {
     _nCandidates      = 0;
     _candidateColumns = new ColumnInfo[_table.Columns.Count];
     if (_rowFilter == null)
     {
         return;
     }
     DataColumn[] depColumns = _rowFilter.GetDependency();
     for (int i = 0; i < depColumns.Length; i++)
     {
         if (depColumns[i].Table == _table)
         {
             _candidateColumns[depColumns[i].Ordinal] = new ColumnInfo();
             _nCandidates++;
         }
     }
 }