About clearFilter? - Ext JS

Hi I wonder is there any way to call clearFilter in a datastore and in the grid don't appear all record filtered, I mean I am doing a process over all records in the store, the record with Flag = 1 don't appear but when I call clearFilter and begin to process each record, in the grid appear all record, is there something like:

ds.clearFilter()
ds.disableControls(); // Some method to the grid not show the record filter?

kind regards
Frank