public async Task <ActionResult> ViewSalesData()
{
try
{
HttpPostedFileBase salesDataFile = Request.Files.Count > 0 ? Request.Files[0] : null;
IList <string> csvData = CSVHelper.ReadCSVFile(salesDataFile);
if (csvData == null)
{
ViewBag.Errors = new[] { "Unable to read CSV file." };
}
IList <VehicleDetail> vehicleDetails = CSVHelper.ConvertToModel(csvData);
ViewBag.MostSoldVehicle = vehicleDetails.GroupBy(vd => vd.Vehicle).GetHighesCountGroup();
return(View("Results", vehicleDetails));
}
catch (Exception ex)
{
Response.StatusCode = 500;
return(View("Error"));
}
}