The DevExtreme JavaScript Gantt component allows users to filter a particular column by values listed in a pop-up menu. To open this menu, click the filter icon in the column header.
Set the headerFilter.visible property to true to display filter icons for all columns. To hide the filter icon for a specific column, disable that column’s allowHeaderFilter property.
Users can search for values in a header filter. To display the search bar, set the allowSearch property to true in the global headerFilter object or in a column’s headerFilter object. At the column level, use the searchMode property to specify the comparison type.
A header filter consists of unique values in its column. To change the filter values, group them with the groupInterval property or bind the data source to this header filter.