SMART datagrid v.1 > Classes > ColumnGroup
Add new Column and return index of the added column. If parameter column is null, or if it has already been included as child, or if it is ancestor group of this column group, it will not be added and will return -1.
var col = new DataLudi.DataColumn({
name: 'col01',
fieldName: 'fld01',
renderer: 'bar'
});
group.add(col);