On Events

SlickGrid has a nice amount of events, see the full list of Available Events, which you can use by simply hook a subscribe to them (the subscribe are a custom SlickGrid Event). There are 2 options to get access to all these events (For the first 2 you will have to get access to the Grid and the DataView objects which are exposed in Slickgrid-React):

From the list below, the number 1. is by far the easiest and preferred way

Example event in the rendered template

Component

Hook yourself to the Changed event of the bindable grid object.

const Example: React.FC = () => {
  const [dataset, setDataset] = useState<any[]>([]);
  const [columns, setColumns] = useState<Column[]>([]);
  const [options, setOptions] = useState<GridOption | undefined>(undefined);
  const graphqlService = new GraphqlService();

  useEffect(() => defineGrid(), []);

  function defineGrid() {
    // populate the grid
  }

  function onCellClicked(e, args) {
    // do something
  }

  function onCellChanged(e, args) {
    setUpdatedObject(args.item);
    reactGridRef.current?.resizerService.resizeGrid(10);
  }

  function onMouseEntered(e, args) {
    // do something
  }

  return !options ? null : (
      <SlickgridReact
          gridId='grid3'
          columns={columns}
          options={options}
          dataset={dataset}
          onReactGridCreated={e => { reactGridReady(e.detail); }}
          onCellChange={e => { onCellChanged(e.detail.eventData, e.detail.args); }}
          onClick={e => { onCellClicked(e.detail.eventData, e.detail.args); }}
          onMouseEnter={e => onMouseEntered(e.detail.eventData, e.detail.args)}
          onValidationError={e => { onCellValidationError(e.detail.eventData, e.detail.args); }}
        />
    );
  }
}

How to use Grid/Dataview Events

Once the Grid and DataView are ready, see all Available Events. See below for the gridChanged(grid) and dataviewChanged(dataview) functions.

• The GridExtraUtils is to bring easy access to common functionality like getting a column from it's row and cell index.

• The example shown below is subscribing to onClick and ask the user to confirm a delete, then will delete it from the DataView.

• Technically, the Grid and DataView are created at the same time by slickgrid-react, so it's ok to call the dataViewObj within some code of the gridObjChanged() function since DataView object will already be available at that time.

Note The example below is demonstrated with bind with event Changed hook on the grid and dataview objects. However you can also use the EventAggregator as shown earlier. It's really up to you to choose the way you want to call these objects.

Component

import { inject, bindable } from 'react-framework';
import { Editors, Formatters, GridExtraUtils } from 'slickgrid-react';

const Example: React.FC = () => {
  const [dataset, setDataset] = useState<any[]>([]);
  const [columns, setColumns] = useState<Column[]>([]);
  const [options, setOptions] = useState<GridOption | undefined>(undefined);
  const graphqlService = new GraphqlService();

  useEffect(() => {
    defineGrid();

    return () => {
      // don't forget to unsubscribe to the Slick Grid Events
      onCellChangeSubscriber.unsubscribe();
      onCellClickSubscriber.unsubscribe();
    };
  }, []);

  function defineGrid() {
    setColumns([
      { id: 'delete', field: 'id', formatter: Formatters.deleteIcon, maxWidth: 30 }
      // ...
    ]);

    setOptions({
      editable: true,
      enableCellNavigation: true,
      autoEdit: true
    });
  }

  function subscribeToSomeGridEvents(grid) {
    onCellChangeSubscriber = grid.onCellChange.subscribe((e, args) => {
      console.log('onCellChange', args);
      // for example, CRUD with WebAPI calls
    });

    onCellClickSubscriber = grid.onClick.subscribe((e, args) => {
      const column = GridExtraUtils.getColumnDefinitionAndData(args);

      if (column.columnDef.id === 'delete') {
        if (confirm('Are you sure?')) {
          reactGridRef.current?.deleteItem(column.dataContext.id);
          reactGridRef.current?.refresh();
        }
      }
    });
  }

  return !options ? null : (
    <SlickgridReact gridId="grid12"
      columns={columns}
      options={options}
      dataset={dataset}
      onReactGridCreated={$event => reactGridReady($event.detail)}
      onGridStateChanged={$event => gridStateChanged($event.detail)}
    />
  );
}