|Boolean||A boolean expression that indicates whether the column's filter bar button is visible or hidden.|
By default, the DisplayFilterButton property is False. The column's filter button is displayed on the column's caption. The DisplayFilterPattern property determines whether the column's filter window includes the "Filter For" (pattern) field. Use the DisplayFilterDate property to include a date selector to the column's drop down filter window. Use the FilterBarDropDownHeight property to specify the height of the drop down filter window. Use the FilterType property to specify the type of the column's filter. Use the FilterList property to specify the list of items being included in the column's drop down filter list. Use the FilterInclude property to specify whether the child items should be included to the list when the user applies the filter. Use the Background(exHeaderFilterBarButton) property to change the visual appearance for the drop down filter button. Use the FilterCriteria property to filter items using AND, OR or NOT operators between columns. Use the CustomFilter property to define you custom filters. Use the ShowFilter method to show programmatically the column's drop down filter window. The FilterForVisible property specifies whether the drop down portion of the control displays all the time a text-box editor to allow filtering items of the control.
For instance, if the user clicks the filter bar button, the control displays a drop down window where all values from the column are inserted like in the following screen shot: