TreeGrid - open one node and change background color parent node

[Enri_000]

Hi, I have two questions.

I have this situation:

How to open with js code only treeGrid record with the black arrow?
To open everything I know: "openAll ()", to close: "closeAll ()".
For example, I have a "myTreeGrid" treegrid, to open everything:
myTreeGrid.data.openAll ().

And to give the parent node a different backgorund color? The one with the yellow arrow.

Thanks in advance for your help.

[Isomorphic]

Simply read the docs for Tree: there are APIs such as openFolder().

To change row-level styling, look at getBaseStyle and getCellCSSText() on ListGrid (TreeGrid's superclass).