DRY way to set default sort direction to DESC?

[JamieMason]

I know that you can set the sortDir property on an Ext.data.field instance, but is there a way to override this value across the board?

After nothing working I've then thrown all kinds of variations (below) at it, but when clicking a grid column header, the first sort is always ASC. I'll be missing something obvious, what is it?

Ext.data.Field.override({
  sortDir: 'DESC'
});


Ext.data.Field.sortDir = 'DESC';


Ext.data.Field.addStatics({
  sortDir: 'DESC'
});


Ext.data.Field.implement({
  sortDir: 'DESC'
});


Ext.util.Sortable.override({
  defaultSortDirection: 'DESC'
});


Ext.util.Sortable.defaultSortDirection = 'DESC';


Ext.util.Sortable.addStatics({
  defaultSortDirection: 'DESC'
});


Ext.util.Sortable.implement({
  defaultSortDirection: 'DESC'
});

[KevinHanson]

[bump] plus

I've got the same question, only I only need it for a specific column of a specific grid. I've tried just about everything I can find and yet the first click of the column header is still always sorting 'ASC'.

Can anyone help??