I cant bind data (events) fetch from service in ViewModel in controller. It works ok without ViewModel.
Domain model
namespace Tournament.Model
{
public class Event
{
public int EventID { get; set; }
public string Name { get; set; }
public DateTime StartDate { get; set; }
public DateTime EndDate { get; set; }
public string Geolocation { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Country { get; set; }
public string Description { get; set; }
public string Type { get; set; }
public virtual List<Team> Teams { get; set; }
}
}
I need just few properties for: ViewModel
namespace Tournament.Web.ViewModel.EventViews
{
public class EventIndexViewModel
{
public int EventIndexViewModelID { get; set; }
public string Name { get; set; }
public DateTime StartDate { get; set; }
public DateTime EndDate { get; set; }
public string City { get; set; }
}
}
And now in controller I have this (I ommited service initializing part - that works fine). So events hold list of Events (from domain model).
public ActionResult Index()
{
//Create list of Events
var events = eventService.GetEvents();
//Search events
//Add _eventService Event details to var event
var model = new EventIndexViewModel();
List<EventIndexViewModel> modelList = new List<EventIndexViewModel>();
foreach (var Event in events)
{
events.Add(new Event {
Name = model.Name,
StartDate = model.StartDate,
EndDate = model.EndDate });
modelList.Add(model);
}
return View(modelList);
}
}
}
Generated standard List view based on ViewModel and got:
Server Error in '/' Application.
Collection was modified; enumeration operation may not execute.
Source Error:
Line 36: List<EventIndexViewModel> modelList = new List<EventIndexViewModel>();
Line 37:
**Line 38: foreach (var Event in events)**
Line 39: {
Line 40: events.Add(new Event {
UPDATE -SOLUTION: This is working controller now:
public ActionResult Index()
{
//Create list of Events
var domainEvents = eventService.GetEvents();
//Add domain Events to ViewModel Event properties
var eventViewModel = new EventIndexViewModel();
List<EventIndexViewModel> eventListViewModel = new List<EventIndexViewModel>();
foreach (var domainEvent in domainEvents)
{
eventListViewModel.Add(new EventIndexViewModel
{
Name = domainEvent.Name,
StartDate = domainEvent.StartDate,
EndDate = domainEvent.EndDate });
}
return View(eventListViewModel);
}
UPDATE 2 - SHORTER AND I GUESS BETTER WAY OF DOING IT WITH LINQ
public ActionResult Index()
{
//Create list of Events
var domainEvents = eventService.GetEvents();
//Search events
//Add domain Event list to ViewModel list
var eventListViewModel = domainEvents.Select(
x => new EventIndexViewModel()
{
Name = x.Name,
StartDate = x.StartDate,
EndDate = x.EndDate,
City = x.City
})
.ToList();
return View(eventListViewModel);
}
.Select()-var eventListViewModel = domainEvents.Select(x => new EventIndexViewModel() { Name = x.Name, StartDate = x.StartDate, EndDate = x.EndDate }).ToList();