public void DoDataFilter() { if (applicationViewModel.UseAdvancedFilter) { applicationViewModel.AdvancedDataFilterString = txtAdvancedFilter.Text; VerticalHeading.Text = "Data Filters"; } else { List <EwavDataFilterCondition> DFilters = FilterControl.CreateDataFilters(); if (DFilters == null) { return; } applicationViewModel.EwavDatafilters = DFilters; } SlideIn.Begin(); rotatearrow1.Begin(); dataFilterSlideCheck = false; }