CODEWITHSUNDEEP
asp.net-mvcbindingviewmodelmodel-binding
PeteGO
PeteGO

Reputation: 5781

ASP .NET MVC 3 - Passing Parameters from View to Controller

If you pass an anonymous object back to the controller, it populates controller arguments by looking at the anonymous object property names - so how would I pass back properties of related objects to my model so that the default value binder can bind them?

For example:

Model:

public class MyViewModel
{
    public MyItem MyItem { get; set; }
}

public class MyItem
{
    public string Name { get; set; }
}

Controller:

public ActionResult Index(MyViewModel model)
{
    return View(model);
}

In the view, I want to pass the MyItem.Name back, how is this possible? I have tried:

@Html.ActionLinke("Index", "MyController", new { name = "example" })

and 

@Html.ActionLinke("Index", "MyController", new { myItem_Name = "example" })

Help please!

Upvotes: 1

Views: 4692

Answers (4)

PeteGO
PeteGO

Reputation: 5781

The answer was to create a custom ModelBinder and ModelBinderProvider.

Upvotes: 0

Jakub Konecki
Jakub Konecki

Reputation: 46008

I think you may be misunderstanding 'the passing of object from view to controller'. It's not that you're passing object - you're just rendering a link (anchor tag) in the page. The request will actually come from the browser when the user clicks the link. There is no 'server-side object passing' going on.

The link has to contain all the parameters you need on the server side (in controller) as query string parameters.

I think that what you really want to do is either:

  1. render a form and submit it, or

  2. pass only the id of the data you need and in the controller retrieve it (from DB for example)

Upvotes: 1

George Stocker
George Stocker

Reputation: 57872

Have you tried:

@Html.ActionLink("Index", "MyController", new { name = @Model.MyItem.Name })

And in the action method:

public ActionResult Index(string name)
{
    return View();
}

Upvotes: 2

Darin Dimitrov
Darin Dimitrov

Reputation: 1038720

You could use the following overload:

@Html.ActionLink( 
    "link text",                             // linkText
    "Index",                                 // actionName
    "MyController",                          // controllerName
    new RouteValueDictionary {               // routeData
        { "MyItem.Name", "example" } 
    }, 
    null                                     // htmlAttributes
)

Upvotes: 1

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