handleChange(oEvent) {
			const oCustomFilter = this.byId("categoryFilterDialog").getFilterItems()[1];
			const oSlider = oCustomFilter.getCustomControl().getAggregation("content")[0];
			const iLowValue = oEvent.getParameter("range")[0];
			const iHighValue = oEvent.getParameter("range")[1];
			if (iLowValue !== oSlider.getMin() || iHighValue !== oSlider.getMax()) {
				oCustomFilter.setFilterCount(1);
			} else {
				oCustomFilter.setFilterCount(0);
			}
		}
Updates filter count if there is a change in one of the slider values
@param {sap.ui.base.Event} oEvent the change event of the sap.m.RangeSlider