Question

I’ve got an <input type='image'> in an ASP.NET MVC view, but I’m not sure how to retrieve the coordinates in the action that runs when the form is submitted. The requested URL looks like

/Map/View/?map.x=156&map.y=196

but I can’t just do

public ActionResult View( int map.x, int map.y )
{
  ...
}

because they’re obviously not valid names for C# method parameters. Is there any equivalent of the ActionName attribute to map query parameters to method parameters?

Answer 1

You have to use use Model binder and set the prefix property to “map”:

First create the Model object:

public class ImageMap()
{
  public int x{get;set;}
  public int y{get;set;}
}

And in your action method:

public ActionResult About([Bind(Prefix="map")]ImageMap map)
{

   // do whatever you want here
    var xCord = map.x;

}