Collapsed ReactJS: Techniques for compressing the Material UI TreeView following expansion

My issue involves a Material UI treeView. After expanding it, an API call is made, but the node in the treeView remains open. I have attempted to use onNodeToggle without success.

Below is my code:

<TreeView
  className={classes.root1}
  defaultExpandIcon={<ArrowDropDownIcon />}
  defaultCollapseIcon={<ArrowDropUpIcon />}
  defaultEndIcon={<ArrowDropDownIcon />}
  disableSelection={true}
  expanded={expanded}
  collapsed={expanded}
>
  {renderTree(row, index)}
</TreeView>

Is there a way to collapse it? Can this be fixed? Is it possible to collapse nodes in a Material UI treeView?

javascriptcssreactjsjsx

Answer №1

Could the issue be with these props?

expanded={expanded}
collapsed={expanded}
  1. collapsed is not mentioned in the documentation
  2. expanded represents an array of expanded items. To collapse an item, simply remove it from this array.

For more information on Controlled TreeView, check out the docs at: https://material-ui.com/components/tree-view/#ControlledTreeView.js

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