SMART datagrid v.1 > Classes > GridBase
If it is not editing state and the column specified by parameter column is Filterable, it will display filter selection box.
First, filteringEnabled of operateOptions should be true.
$('#selectColumnFilter').click(function () {
var column = grid.focusedIndex().column;
if (column.filterable()) {
grid.selectColumnFilter(column);
}
});