Bind multiple values from the query string to an array parameter

Question

I have created the following ActionMethod as suggested here:

[Route("[action]")]
public IActionResult Orders([FromRoute] int[] filterby)
{
    ICollection<Order> all;
    if(filterby.Length != 0)
    {
        all = _db.Orders.Where(s => filterby.Contains((int)s.Status)).ToList();
    }
    else
    {
        all = _db.Orders.ToList();
    }

    return View(all);
}

When the request URI is something like:

http://localhost:5000/admin/orders?filterby=0&filterby=1

The filterby parameter is always an array of 0 length. What can't I get it working?

make sure System.Web.Http is imported msdn.microsoft.com/en-us/library/… — Zaki
– Zaki, Commented Apr 6, 2016 at 10:21
@VSG24 If you have enough rep, add the answer as an actual answer, rather than editing your question. That will show other users that the question has been answered, and will be easier to find. — Matt Sach
– Matt Sach, Commented Apr 6, 2016 at 10:41

CodeCaster · Accepted Answer · 2016-04-06 10:52:56Z

3

When using ASP.NET core you have two choices:

(Recommended) Use the new attribute [FromQuery]
Import the package Microsoft.AspNet.Mvc.WebApiCompatShim and use the old [FromUri]

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