public Field(Table table, int row, int col)
{
_table = table;
_column = _table.Columns[col];
_row = _table.AddRow();
}
public Field(Table table, int row, Column col)
{
_table = table;
_row = _table.Rows[row];
if (_row == null)
_row = _table.AddRow();
_column = col;
}