Q:

Using one Partial View Multiple times on the same Parent View

I am using MVC3 razor. I have a scenario where I have to use a partial view multiple times on the same parent view. The problem I am having is that when the Parent View gets rendered, it generates same names and ids of the input controls within those partial views. Since my partial views are binded to different models, when the view is posted back on "Save" it crashes. Any idea how can i make the control id/names unique, probably some how prefix them ?
Awaiting
Nabeel  

A:

Personally I prefer using editor templates, as they take care of this. For example you could have the following view model:
public class MyViewModel
{
    public ChildViewModel Child1 { get; set; }
    public ChildViewModel Child2 { get; set; }
}

public class ChildViewModel
{
    public string Foo { get; set; }
}

and the following controller:
public class HomeController : Controller
{
    public ActionResult Index()
    {
        var model = new MyViewModel
        {
            Child1 = new ChildViewModel(),
            Child2 = new ChildViewModel(),
        };
        return View(model);
    }

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

and inside the Index.cshtml view:
@model MyViewModel
@using (Html.BeginForm())
{
    <h3>Child1</h3>
    @Html.EditorFor(x => x.Child1)

    <h3>Child2</h3>
    @Html.EditorFor(x => x.Child2)
    <input type="submit" value="OK" />
}

and the last part is the editor template (~/Views/Home/EditorTemplates/ChildViewModel.cshtml):
@model ChildViewModel

@Html.LabelFor(x => x.Foo)
@Html.EditorFor(x => x.Foo)

Using the EditorFor you can include the template for different properties of your main view model and correct names/ids will be generated. In addition to this you will get your view model properly populated in the POST action.

