Home/ Questions/Q 6906321
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-27T08:17:41+00:00

I have a controller called AuctionsController with a method public ActionResult BidsByAuction(int auctionId, int

  • 0

I have a controller called AuctionsController with a method

public ActionResult BidsByAuction(int auctionId, int page = 1)

When I navigate to /Auctions/BidsByAuction/38 I get the following error:

The parameters dictionary contains a null entry for parameter ‘auctionId’ of non-nullable type ‘System.Int32’ for method ‘System.Web.Mvc.ActionResult BidsByAuction(Int32)’ in ‘Extranet.Controllers.AuctionsController’. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
Parameter name: parameters

What is going wrong here?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Did you create a cutom route for your method that takes an AuctionID as a parameter? If not, then by default, the parameter is called “id”.

    If you want auctionid, then you need to make a new route that sets the name to auctionid.

    Not entirely sure that will fix your problem, since there may be a problem with the optional parameter as well, but fix this one and see what you get.

    • 0