Refined (grouped) search

A very nice feature is the ability to perform a refined search. Using a refined search will result in a column left of the grid containing the unique values of the selected key item. As an example, we use the employees grid. To set up a refined search on gender, open the fields column and choose the gender field. Then set the refined search to true:

After generating the code:

It shows a select box with the number of elements. In this case perhaps not so useful as nobody will scroll over that many items. 

In case of the birthdate, suppose you need a refined search on birth year. In that case you need to define a conversion (refined range).

You can add more refined searches. If the end-user selects values from different searches, all criteria will be appended to the main search.