How to get the selected row indexes from the grid window, or change selections programmatically?
The selection model in the grid control is based on the array of rectangles. Each rectangle describes indices of left/top and right/bottom cells of a single rectangular selection region. If your grid uses the single selection model, then the selection region consists of one rectangle only. The full-row and full-column selection models are also based on rectangles. The data grid also supports two types of multiple selection models: excluded and non-excluded. The cell is assumed to be non-selected if it is covered by an even number of rectangles in the excluded model. The cell is assumed to be selected if it is covered by at least one rectangle in the non-excluded model.
