I have the selection style of a grid set to select an entire row. This
works fine for me except for one thing: Each time I select a row, the
previously selected row(s) will STAY selected. I just want a single row
highlighted and selected each time I click on one. Is there a property
to turn off "Multi-Select" and still have row-based selection? If not,
what's a (the?) proper method of clearing the highlighted rows?