[c#] Foreach in a Foreach in MVC View

Assuming your controller's action method is something like this:

public ActionResult AllCategories(int id = 0)
{
    return View(db.Categories.Include(p => p.Products).ToList());
}

Modify your models to be something like this:

public class Product
{
    [Key]
    public int ID { get; set; }
    public int CategoryID { get; set; }
    //new code
    public virtual Category Category { get; set; }
    public string Title { get; set; }
    public string Description { get; set; }
    public string Path { get; set; }

    //remove code below
    //public virtual ICollection<Category> Categories { get; set; }
}

public class Category
{
    [Key]
    public int CategoryID { get; set; }
    public string Name { get; set; }
    //new code
    public virtual ICollection<Product> Products{ get; set; }
}

Then your since now the controller takes in a Category as Model (instead of a Product):

foreach (var category in Model)
{
    <h3><u>@category.Name</u></h3>
    <div>
        <ul>    
            @foreach (var product in Model.Products)
            {
                // cut for brevity, need to add back more code from original
                <li>@product.Title</li>
            }
        </ul>
    </div>
}

UPDATED: Add ToList() to the controller return statement.

Examples related to c#

How can I convert this one line of ActionScript to C#? Microsoft Advertising SDK doesn't deliverer ads How to use a global array in C#? How to correctly write async method? C# - insert values from file into two arrays Uploading into folder in FTP? Are these methods thread safe? dotnet ef not found in .NET Core 3 HTTP Error 500.30 - ANCM In-Process Start Failure Best way to "push" into C# array

Examples related to asp.net

RegisterStartupScript from code behind not working when Update Panel is used You must add a reference to assembly 'netstandard, Version=2.0.0.0 No authenticationScheme was specified, and there was no DefaultChallengeScheme found with default authentification and custom authorization How to use log4net in Asp.net core 2.0 Visual Studio 2017 error: Unable to start program, An operation is not legal in the current state How to create roles in ASP.NET Core and assign them to users? How to handle Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause() ASP.NET Core Web API Authentication Could not load file or assembly 'CrystalDecisions.ReportAppServer.CommLayer, Version=13.0.2000.0 WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for jquery

Examples related to asp.net-mvc

Using Lato fonts in my css (@font-face) Better solution without exluding fields from Binding Vue.js get selected option on @change You must add a reference to assembly 'netstandard, Version=2.0.0.0 How to send json data in POST request using C# VS 2017 Metadata file '.dll could not be found The default XML namespace of the project must be the MSBuild XML namespace How to create roles in ASP.NET Core and assign them to users? The model item passed into the dictionary is of type .. but this dictionary requires a model item of type How to use npm with ASP.NET Core

Examples related to entity-framework

Entity Framework Core: A second operation started on this context before a previous operation completed EF Core add-migration Build Failed Entity Framework Core add unique constraint code-first 'No database provider has been configured for this DbContext' on SignInManager.PasswordSignInAsync The instance of entity type cannot be tracked because another instance of this type with the same key is already being tracked Auto-increment on partial primary key with Entity Framework Core Working with SQL views in Entity Framework Core How can I make my string property nullable? Lazy Loading vs Eager Loading How to add/update child entities when updating a parent entity in EF

Examples related to asp.net-mvc-4

Better solution without exluding fields from Binding How to remove error about glyphicons-halflings-regular.woff2 not found When should I use Async Controllers in ASP.NET MVC? How to call controller from the button click in asp.net MVC 4 How to get DropDownList SelectedValue in Controller in MVC Return HTML from ASP.NET Web API There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key country Return JsonResult from web api without its properties how to set radio button checked in edit mode in MVC razor view How to call MVC Action using Jquery AJAX and then submit form in MVC?