This demo explains the default functionalities of filtering and how to define the template for filter bar in Syncfusion Essential JS2 Tree Grid
gridLines property is used to control the line visibility that separates the rows and columns.
Tree Grid allows us to display the following grid lines,
Default- Shows the Horizontal line.
None- Shows no line.
Both- Shows both Horizontal and Vertical lines.
Horizontal- Shows the Horizontal line.
Vertical- Shows the Vertical line.
In this demo, you can modify the visibility of gridlines by selecting values in the dropdown.
More information on the gridLines configuration can be found in this documentation section.