There are a number of ways in which you can pass parameters to action methods in ASP.NET Core MVC. You can pass them via a URL, a query string, a request header, a request body, or even a form.

Extract all request headers in ASP.NET Core 5 MVC You can take advantage of the Headers collection of the HttpRequest class to read data pertaining to one or more request headers in your application.

I'm trying to populate a drop down menu for a jQuery jqGrid. While I'm almost there, I'm not sending the data to the view correctly. The jqGrid expects a string of key->value pairs for the drop ...