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Restore List of custom objects on postback

Posted By:      Posted Date: October 21, 2010    Points: 0   Category :ASP.Net

I have a model containing a List with custom objects, let's say Customer objects. Like this:

public class MyModel
public List<Customer> { get; set;}

public class Customer
public int id { get; set;}
public string name { get; set;}

In the View I print out (for simplicity) the name and id of the customer objects on the model. How to restore these values on postback if the method signature looks like this:

public Index(MyModel model)
...here model.Customer[x].Id and model.Customer[x].Name is null...

Should I use hidden values? This is not possible if the List contains items of interface type, for example List<ICustomer> where ICustomer is an interface. Is there any other way to "save" the values on each postback? For example I may want to view validation error messages when the user submits the form and then the properties of the customer object must still be there..

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