Lists values that specify the header filter mode used in a grid.
The header filter is displayed as a checked list of filter items. In this mode, an end-user can select more than one item simultaneously. When the dropdown window is closed by clicking the OK button, the grid will display those records that contain the checked values.
For date columns only. The header filter displays a calendar and a set of predefined items.
For date columns only. The header filter displays a date range picker and a set of predefined items.
For date columns is equal to the DateRangePicker value, for other columns is equal to the List value.
The header filter is displayed as a regular list of filter items. Clicking an item invokes a corresponding action and automatically closes the dropdown.