Users must have the ability to highlight one or more rows in a table on which to perform an operation (for example, mailing a care package to the selected patients, or deleting rows representing to-do tasks that the user has completed.)
In a WebGrid control you would either enable the display of row selectors (small button-like cells at the left edge of each row your users can click) through the RowSelectorsDefault property, or set the CellClickActionDefault to RowSelect so that any user click on a cell will select the row. Using row selectors would be the preferred solution when you want a cell click to trigger another function such as editing. Then you would enable either single row selection or multiple row selection by setting the SelectRowTypeDefault property to Single or Extended, respectively. You would customize the appearance that your rows take on when selected by the user by modifying the RowSelectedStyleDefault. Each of these properties is available on the WebGrid control's DisplayLayout property (affecting rows on all bands), but these settings can alternatively be made at the level of individual Bands.