I think I found how to work with the VS designer on specifying columns of the grid in designer. I just want to be sure that I am not going to break something later.

Here is what I did (everything in Design Mode):

1. Click on Smart Tag (that little thingie at the top of the control)
2. When grid Grid_Tasks window is open I click on Choose Data Source. (Initially only my BindingSource was visible there. But that didn't do any good as it was not showing any columns).
3. I click on Add Project Data Source. This opens Data Source Configuration window.
4. In the prompt "Where will application get the data" I click on Object (the other 2 choices are DataBase and Web Service. Then click on Next.
5. Then I see all the projects in my application. I go to the DataSets project and drill down to the Data Table of the Data Set that should be used for this grid.
6. Then, once the data table is set as a Data Source for the grid I can add/remove columns and set certain properties.
Everything seem to work.

The only concern is that now below the form (in the designer) there are 2 data sources: 1. Binding Source that I set up when I was designing this form 2. DataTable binding source (result of the steps above).

Is it a problem that the form has two binding sources? One of them is used for all the controls and another for grid?

Thank you for any input/suggestions on this topic.