public async Task <IActionResult> OnPostAsync(string queryString)
{
ViewData["QueryString"] = queryString;
Towns = (await _townService.GetAvailableTownsEagerAsync(HttpContext.User));
Groups = (await _groupService.ListAwailableGroupEagerAsync(HttpContext.User));
ViewData["TownList"] = new SelectList(Towns, "Id", "Name");
ViewData["GroupList"] = new SelectList(Groups, "Id", "Name");
ISpecification <VehicleItem> canFetch = await Vehicle4UserSpecification.CreateAsync(HttpContext.User, _userManager);
canFetch = canFetch.And(FilterModel.ToExpression());
canFetch.Includes.Add(t => t.Driver);
canFetch.Includes.Add(t => t.Town);
canFetch.Includes.Add(t => t.Group);
canFetch.OrderBy(t => t.IsValid());
var items = await _vehicleService.ListAsync(canFetch);
if (FilterModel.ExportExcel == true)
{
var sigStr = $"::{HttpContext.User.Identity.Name}::socona.imvehicle.vehicle.export?search::{DateTime.Now.ToString("yyyyMMdd.HHmmss")}";
var stream = ExcelHelper.ExportVehicles(items, sigStr);
return(File(stream.ToArray(), "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", $"exported{DateTime.Now.ToString("yyyyMMdd.HHmmss")}.xlsx"));
}
Vehicles = items.Select(t => new VehicleListViewModel(t)).ToList();
return(Page());
}