i have created a class which is inherited from collectionbase
and impements IBinding list .
this class is a collection of structure having 3 fields.
when i bind this class to datagrid i am not able to format or order
the columns i want to show on datagrid.

what do i do?

DataGrids don't support ordering. They provide the functionality to store what the sort expression is however. With that you can tell your data provider (in your case, the collection) what the sort expression is. Usually this is used with a database. You will need to write sorting logic for your specific collection.

How are you trying to format the output? Can we see some code?

How to display data from two related table in same Windows.Forms DataGrid control? Every record from "master" table is related with one or more records in "detail" table. When I press "+" in master table I want to be displayed related records in new DataGrid control. This control have MsAccess when you using DataSheet view for related tables.

Do you know how to create this custom control?

thanks