Row-level properties cssClasses (string) - One or more (space-separated) CSS classes to be added to the entire row. focusable (boolean) - Whether or not any cells in the row can be set as "active". selectable (boolean) - Whether or not a row or any cells in it can be selected. Column-level properties focusable (boolean) - Whether or not a cell can be set as "active". selectable (boolean) - Whether or not a cell can be selected. formatter (Function) - A custom cell formatter. editor (Function) - A custom cell editor. colspan (number|string) - Number of columns this cell will span. Can also contain "*" to indicate that the cell should span the rest of the row. Order of checks When looking up a property, the grid checks in the following order: Row-level item metadata. Column-level item metadata by column id. Column-level item metadata by column index. Column definition. Grid options. Grid defaults.