CODEWITHSUNDEEP
asp.net-mvcasp.net-mvc-scaffolding
andrey1567
andrey1567

Reputation: 139

Why is my MVC ViewModel Empty?

Model:

public class Service
{
    public int Id { get; set; }
    public string Name { get; set; }
    public double Price { get; set; }
}

ViewModel:

public class FullPrice
{
    public IEnumerable<Service> Services { get; set; }
}

View:

@model hotel.Models.FullPrice
@foreach(Service service in Model.Services)
{
    //
}

My view model is NULL. Why?

Upvotes: 0

Views: 460

Answers (3)

ekad
ekad

Reputation: 14624

Change your ViewModel code to below

public class FullPrice
{
    public FullPrice()
    {
        this.Services = new List<Service>();
    }

    public IEnumerable<Service> Services { get; set; }
}

so the Services property won't be null when you do this

FullPrice model = new FullPrice();

Upvotes: 0

AmmarCSE
AmmarCSE

Reputation: 30607

Model would be NULL because there is no currently existing instance as the view is being executed.

Usually, the way to pass a model instance into a view would be in the corresponding action method like

public View myActionMethod()
{
    hotel.Models.FullPrice model = new hotel.Models.FullPrice();
    model.Services = new List<Service>();//Also prevent NULL exception with this property
    return View(model);
}

Upvotes: 2

Zabavsky
Zabavsky

Reputation: 13640

I guess it's not the model what is null, but the Services. Change the action code to

FullPrice model = new FullPrice
{
    Services = new List<Service>()
};
return View(model);

Upvotes: 1

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