Igx-grid allowFiltering option, I want to display filter date list according to current date on top.

here is link – https://stackblitz.com/edit/ivs7wc?file=src%2Fapp%2Fgrid%2Fgrid-excel-style-filtering-sample-3%2Fgrid-excel-style-filtering-sample-3.component.html

enter image description here

I am try this. – this.grid.sort({ fieldName: 'OrderDate', dir: SortingDirection.Desc, ignoreCase: true });

I want to –
Mar 28, 2002
Mar 17, 2002
Feb 17, 2002
Jan 12, 2002
Mar 12, 2001
Mar 11, 2001