ASP.NET Core MVC get Property of Property of Model from Query

Question

I have these classes

public Customer
{
    public int ID { get; set; }
    // [...] some other properties
}

public CustomerDetails
{
    public Customer Customer { get; set; }
    // [...] some other properties
}

i have this controller action

[HttpGet]
[Route("{customer.id}")]
public async Task<IActionResult> Details([FromQuery]CustomerDetails model)
{
    // [...]
}

i also have tried [Route("{model.customer.id}")] and [Route("{id}")] and added [FromQuery] to CustomerDetails.Customer but model.customer.id is always 0 .

the action should have the route /customers/{model.customer.id}. How can I achieve this?

Answer 1

for url

/customers/details/5 

change your action routing to this:

[Route("~/customers/details/{customerId}")]
public async Task<IActionResult> Details(int customerId)
{
    // [...]
}

if your want url

/customers/5 

you need this route attribute

[Route("~/customers/{customerId}")]
public async Task<IActionResult> Details(int customerId)
{
    // [...]
}

if you add CustomerId to your model

public CustomerDetails
{
public int CustomerId { get; set; }
public Customer Customer { get; set; }
    // [...] some other properties
}

it will we be working too

[Route("~/customers/details/{customerId}")]
public async Task<IActionResult> Details(CustomerDetails model)
{
    // [...]
}

Answer 2

i also have tried [Route("{model.customer.id}")] and [Route("{id}")] and added [FromQuery] to CustomerDetails.Customer but model.customer.id is always 0.

the action should have the route /customers/{model.customer.id}. How can I achieve this?

it is working with /customers/details?customer.id=5 but i want it to be /customers/5

According to your code and description, I suppose perhaps you want to get the parameter from route, instead of the query.

Try to modify your code as below:

1. Use [FromRoute] attribute.

2. From your description, it seems that you just want to pass the customer id to the action method, so there is no need to use the CustomerDetails as parameter.

    [HttpGet] [Route("Test/Details/{customerid}")] public IActionResult Details([FromRoute]int customerid) { // [...] ViewBag.CustomerId = customerid; return View(); }

Code in the View Page:

@{
    ViewData["Title"] = "Details";
}

<h1>Details</h1>

@ViewBag.CustomerId

The result like this: