how to expand all child nodes inside one parent node/group element on custom get context menu items in Ag grid Enterprise version

Question

I am using the enterprise version of ag grid. I have a custom context menu and inside there are many parent nodes and inside each parent node, there are nested child nodes.Currently I can expand it by the parent level, but don't know how to expand all child nodes at the same time. Any help will be highly appreciated. Thanks

{
    name: 'Expand All',
    action() {
      params.api.forEachNode((node, index) => {
        if (node.group && node.groupData['ag-Grid-AutoColumn'] === 
            params.value) {
          node.setExpanded(true);
        }
      });
    }

Answer 1

I faced the same issue with AG Grid, Unfortunately I couldn't find anything useful in AG Grid API to achieve this functionality. So I had to achieve it in this way:

name: 'Expand All',
    action: () => {
      let totalChildNodes = 0;
      let checkCount = 0;
      params.api.forEachNode((node, index) => {
        if (node.group && node.groupData['ag-Grid-AutoColumn'] === params.value) {
          totalChildNodes = node.allChildrenCount;
          node.expanded = true;
        }
        if (totalChildNodes > 0 && checkCount <= totalChildNodes) {
          checkCount++;
          node.expanded = true;
        }
      });
      params.api.onGroupExpandedOrCollapsed();
    }

What the above code does is it checks the clicked node and get it's child count and then expand all its child nodes as well.