>> And as you say, i need to limit the data getting. Do you want to get a code with splitting by 1000 (for example) Ids? >> So restricting the logic of data getting. I meant "restructuring", sorry. So change the logic of the app. To group some ID into groups... I need to see you task to give you more ideas. >> How do i get the BindingList TableId into a table? >>And after I have a dataset with the two tables... I gues i can figure that out. No, you will have one table with full data in it. But you will display only necessary information. To do that you have to bind you table to DataGridView (for example) through BindingSource: BindingSource bs = new BindingSource(someDataSet, "SomeMember"); someDataGridView.DataSource = bs; // then in an other place you can filter: Filter condition, like: bs.Filter = "SomeColumn = 'id1' OR SomeColumn = 'id2' OR ..... ";
