I have the following in my model:
public sealed class OAuthProvider
{
private readonly string name;
private const string SOME_PROVIDER = "SOMEPROVIDER";
public static readonly OAuthProvider SomeProvider = new OAuthProvider(SOME_PROVIDER);
private OAuthProvider(String name) { this.name = name; }
public override String ToString(){ return name; }
public static implicit operator string(OAuthProvider oAuthProvider)
{
return oAuthProvider.name;
}
public static implicit operator OAuthProvider(string oAuthProvider)
{
switch (oAuthProvider)
{
case SOME_PROVIDER : return SomeProvider ;
default: return null;
}
}
}
And this in my OAuth controller:
public ActionResult Profile(OAuthProvider network)
{...}
And this in my view:
@model SomeModel
Html.RenderAction("Profile", "OAuth", new { network = Model.Network });
Where Model.Network is a string
When this view is rendered, I can see (via breakpoint) that Model.Network is coming in as a string that isn't null. My Profile(OAuthProvider) is being called but network is coming in as null despite the implicit type conversion being in place.
Am I going about this the wrong way? Am I forced to do an explicit cast?
Not sure if this might work, it's not a direct answer to what you have (but it's hard to say w/o debugging in similar cases) but might help (and is much text for the comment)...
in similar cases when the binding doesn't work as expected, often helps to debug - and that by making a custom binder.
In your Application_Start you do something like this...
ModelBinders.Binders.Add(typeof(YourNamespace.OAuthProvider), new YourNamespace.Binders.OAuthProviderClassBinder());
(you can similarly do for the controller if it never reaches the action or other cases e.g. ControllerBuilder.Current.SetControllerFactory(new RedirectControllerFactory()); where factory derives from DefaultControllerFactory similar to below example)
...then in the code somewhere you define the binder like this, simplified...
public class OAuthProviderClassBinder : DefaultModelBinder
{
//public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
//{
//}
protected override object CreateModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Type modelType)
{
var model = (OAuthProvider)base.CreateModel(controllerContext, bindingContext, modelType);
// ...you change, inspect set etc.
return model;
}
}
...this is the way to custom bind, adjust your 'passing' values - also check if problems with them etc.
And you might be better off overriding the other methods, e.g. BindModel
Here are a link fast...
Creating a custom model binder
http://msdn.microsoft.com/en-us/library/system.web.mvc.defaultmodelbinder.aspx
