You can manage the settings on Grid Header area in which are displayed the column header cells through GridHeader object. You can display the grid header, specify the height or the default style to all column headers.
Show or hide the grid header.
If specify GridHeader.height with a value greater than 0, it will be displayed in the corresponding size, and if smaller than 0, the size will be determined automatically according to the style. Also, in any case, it cannot be smaller than the height specified in minHeight.
Specify the height.
Show or hide the menu displayed in the head area.
You can specify the default style of column header cells in the grid header level.