We have created two functions to expand/collapse the particular node.
The definition of the functions is give below:
function expandNode() {
var row = chart.getSelection()[0].row;
chart.collapse(row, false);
chart.setSelection(row);
}
function collapseNode() {
var row = chart.getSelection()[0].row;
chart.collapse(row, true);
chart.setSelection(row);
}
Now, what we want to do is change the css of the parent node which is
collapsed/expanded. if we use selectedStyle property, it change the
color but immediately revert to the previous stage after collapse/
expand. Kindly suggest on how we can change the background color of
the parent node that is collapsed or expanded.
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