EXTjs gridfilter: How to clearfilter without reloading store?

Question

In extjs GridFilters, is there a way to clear the filters without reloading the store?
This is the rquirement:
There is a grid(#1) and another grid(#2) below the gri

Answer 1

I've experienced the same issue but not with a Grid but with a DataView, however, this might apply equally to your case. I initially tried:

var store = this.getStore();
store.suspendEvents();
store.clearFilter();
store.resumeEvents();
store.filter(...);

this didn't work—still 2 HTTP requests were made, once for clearFilter(), once for filter(...).

However, the following works:

var store = this.getStore();
store.getProxy().extraParams['q'] = keywords;
store.load();