Asp.net MVC Binding
If for example you have a Car class and that Car class contains a car type which is reflected by a table in the database. How do I get MVC to bind to car type when I create a new car?
public class Car
{
public string Name { get; set; }
public CarType Type { get; set; }
}
public class CarType
{
public int CarTypeId { get; set; }
public string Name { get; set; }
}
public class CarViewModel
{
public Car MyCar { get; set; }
public SelectList Types { get; set; }
}
..... inside my controller
public ActionResult Create()
{
return View(new CarViewModel { Car = new Car(), Types = new SelectList(repo.GetCarTypes(), "CarTypeId", "Name") });
}
[HttpPost]
public ActionResult Create(Car myCar)
{
//hopefully have bou开发者_如何学运维nd correctly
repo.Add(car);
repo.Save();
}
What do I need in my view in order to get my Car object to be able to correctly bind?
Thank you!
I think something like the following should be handled by the binder without issue.
<input name="car.name" value="" />
<select name="car.type.cartypeid">
<% foreach (var item in Model.Types) { %>
<option name="car.type.carttypeid" value="<%:item.cartypeid%>"><$:item.name%></>
<% } %>
</select>
here's what has worked for me:
<%= Html.DropDownList( "Type.CarTypeId", Model.Types ) %>
and if you're editing a Car, you'll need to set the selected value when you create your SelectList:
Types = new SelectList(repo.GetCarTypes(), "CarTypeId", "Name", car.Type.CarTypeId )
精彩评论