Deselect selected rows from ag grid angular

Used grip api deselectAll function . It worked !

this.gridOptions.api.deselectAll();

For anyone that finds this in the future:

Allow manual row deselection by setting gridOptions.rowDeselection = true as Victor said.

Programatically deselect all rows using gridOptions.api.deselectAll() as OP discovered.

To programatically deselect a single row, use rowNode.setSelected(false). rowNode.setSelected(isSelected, clearSelection) can be used to select rows as well, and will deselect all rows other than the subject rowNode if clearSelection is true.

set gridOptions.rowDeselection to true with rowSelection as multiple will deselect a selected by click when holding control key.

I believe it is weird but setting rowDeselection to true didn't work for me. What I wanted was simple: Being able to deselect a row when it was selected already. So I checked the Row Selection section of AG Grid's documentation and I find this:

rowMultiSelectWithClick: ... Clicking a selected row in this mode will deselect the row.

Huh! Yeah that sounds like what I need! But I don't want multiple selection...! I want single selection ONLY. So I thought maybe setting rowSelection to single will fix it and the selection will be single and deselectable. And... yes it works! The reason I was in doubt initially when doing this is using "rowMultiSelectWithClick" together with "single rowSelection" sounds contradictory, but it works anyways and this is the thing that matters really! :) So e.g., if you're using it in React (quite similar in Angular or Vanilla JavaScript), just add:

<AgGridReact
    rowSelection="single"
    rowMultiSelectWithClick={true}
    //...
>

You could try the deselectAll() method in the GridApi. Though, it doesn't appear that AgGrid has an option to deselect specific rows.

To deselect a specific row/node use api.getSelectedNodes() instead of getSelectedRows(). Then for each node use node.data for the row info you need and then node.setSelected(false) to deselect when done.

let selected = gridOptions.api.getSelectedNodes();
_.each(selected, function(node) {
    let row = node.data;
    //stuff
    node.setSelected(false);
});