protected virtual void AreaControl_Leaving(object sender, WPFUserControl.AutoCompleteTextBoxControlEventArgs e) { if (SubAreaControl.ListBoxReadOnly) { // get the subareas and let the base class do the work var countrySubAreas = (CountryControl.GetCurrentObject() as Country)?.SubAreas; var areaSubAreas = (e.Object as Area)?.SubAreas; // valid subareas if ((areaSubAreas != null) && (countrySubAreas != null)) { // get the subareas belong to both selected area and selected country if (GetCountrySubAreas(areaSubAreas.ToList(), countrySubAreas.ToList()) is List <SubArea> matchingSubareas) { // refresh control RefreshControl(matchingSubareas.OfType <Location>().ToList(), SubAreaControl); } } } else { RefreshControl(_allSubAreas.OfType <Location>().ToList(), SubAreaControl); } // derived class can set the view model property // take area name from area object (if in database) or from UI text SetAreaDisplayItem(e.Object is Area area? area.Name : AreaControl.GetCurrentText()); // set focus to the respective text box SubAreaControl.SetFocus(); }
private void SubjectLocationControl_LeavingViaShift(object sender, AutoCompleteTextBoxControlEventArgs e) { SubAreaControl.SetFocus(); }