When this style is set, a funnel icon is shown before each column title. Clicking on that icon shows a pop-up dialog with the list of values stored in the column, a OK button and a Cancel button. You can create a filter by unchecking the values that you wish to discard and checking the values that you wish to keep. Clicking on the OK button applies the filter. Clicking on the Cancel button closes the filter dialog.

When a filter is applied, a small red cross is shown over the funnel icon. Clicking on it removes the filter and restores the original Grid data.

This style has effect only if used in conjunction with Column-Headings.

 

Example - Define a grid with filterable columns