A header filter allows a user to filter individual field's values by including or excluding them from the applied filter. Clicking a header filter icon in the field chooser or the field panel invokes a popup menu displaying all the unique field values.
Specifies a delay in milliseconds between when a user finishes typing in the header filter's search panel, and when the search is executed.
For example, a PivotGrid contains Continent and Country fields, and a user selects Europe in the Continent's header filter. If the Country's header filter should filter out all non-European countries, set this property to true.