I have a model which has an IEnumerable property (warning pseudo-code to follow)
public class PersonModel {
public string Name { get; set; }
public IEnumerable<AddressModel> Addresses { get; set; }
}
public class AddressModel {
public string Name { get; set; }
}
I want to display the Address sub-objects in the same view
Person.cshtml
@model PersonModel
<form>
<h2>Person</h2>
@Html.EditorFor(m=>m.Name)
<ul>@Html.EditorFor(m=>m.Addresses)</ul>
</form>
EditorTemplate/AddressModel
@model AddressModel
<li>@Html.TextboxFor(m=>m.Name)</li>
Marvellous, all works fine
But, being a git, I now want to start using Template Layouts to wrap all my properties in a standard type way and stuff
So I create a string.cshtml and a list.cshtml to do this, with a _Control.cshtml for the layout
EditorTemplates/_Control.cshtml
<div>
@Html.Label(string.Empty)
<div class="input">
@RenderBody()
@Html.ValidationMessage(string.Empty)
</div>
</div>
EditorTemplates/string.cshtml
@model string
@{
Layout = "_Control.cshtml";
}
@Html.TextBox(string.Empty, Model)
(so far yay! but wait.. oh no..)
Here's the trouble
<ul>@Html.EditorFor(m=>m.Addresses)</ul>
from the main view (see above) becomes
@Html.EditorFor(m=>m.Addresses, "List")
EditorTemplates/list.cshtml
@model IEnumerable<object>
@{
Layout = "_Control.cshtml";
}
<ul>
@foreach(var item in Model){
@Html.EditorFor(m => item)
}
</ul>
This renders the id and names incorrectly, something like Addresses_item_Name, which does not contain the Id, so adding the id with a for loop
@for (var i = 0; i < Model.Count();i++ ) {
@Html.EditorFor(m => Model.ElementAt(i))
}
This blows up as the MVC expression helper does not allow anything but arrays, but Addresses has to be IEnumerable<> because EF4.1 does not support .ToArray inside a sub-query ie.
var model = (from p in DataContext.People
where p.Id = 1
select new PersonModel {
Name = p.Name,
Addresses = (from a in p.Addresses
select new AddressModel {
Name = a.Name
}).ToArray() // **NOT SUPPORTED**
}).FirstOrDefault();
Has anyone come up against this? Is there are standard way to do it?
This works, but is it right?
EditorTemplates/list.cshtml
@model IEnumerable<object>
@{
Layout = "_Control.cshtml";
var prefix = ViewData.TemplateInfo.HtmlFieldPrefix;
}
<ul>
@for (var i = 0; i < Model.Count();i++ ) {
var item = Model.ElementAt(i);
ViewData.TemplateInfo.HtmlFieldPrefix = string.Format("{0}[{1}]",prefix, i);
@Html.EditorFor(m => item, null, string.Empty)
}
</ul>
The desired structure is
<form>
<control>
Person Name Control Elements
<control>
<control>
Address List Control Elements
<control>
</form>
