How to expand rows in grouped data in Ag-grid angular?

Question

I want to expand particular rows in table,on certain condition. But i actually want it during on-load of page, not on any click events.

The solutions i saw online are based on click events.

Can any one help me on it?

Answer 1

Listen to the gridReady event:

<ag-grid-angular [gridOptions]="gridOptions" (gridReady)="gridReady($event)"></ag-grid-angular>

And then loop though the nodes and determine whether or not you want it expanded:

gridReady = (params) => { 
   gridOptions.api.setData([yourData]);
   gridOptions.api.forEachNode(function(node) {
     // enter your expansion criteria here
     if (node.key==='whatever') {
        node.setExpanded(true);
     }
   });
}