How do you handle multiple submit buttons in ASP.NET MVC Framework?

Question

Is there some easy way to handle multiple submit buttons from the same form? For example:

<% Html.BeginForm(\"MyAction\", \"MyController\", FormMethod.Pos         


        

Answer 1

I'm pretty late to the party, but here goes... My implementation borrows from @mkozicki but requires less hardcoded strings to get wrong. Framework 4.5+ required. Essentially, the controller method name should be the key to the routing.

Markup. The button name must be keyed with "action:[controllerMethodName]"

(notice the use of the C#6 nameof API, providing type-specific reference to the name of the controller method you wish to invoke.

    ... form fields ....
    Fund Death Star
    Hire Boba Fett

Controller:

namespace MyApp.Controllers
{
    class MyController
    {    
        [SubmitActionToThisMethod]
        public async Task FundDeathStar(ImperialModel model)
        {
            await TrainStormTroopers();
            return View();
        }

        [SubmitActionToThisMethod]
        public async Task HireBoba(ImperialModel model)
        {
            await RepairSlave1();
            return View();
        }
    }
}

Attribute Magic. Notice the use of CallerMemberName goodness.

[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class SubmitActionToThisMethodAttribute : ActionNameSelectorAttribute
{        
    public SubmitActionToThisMethodAttribute([CallerMemberName]string ControllerMethodName = "")
    {
        controllerMethod = ControllerMethodName;
        actionFormat = string.Concat(actionConstant, ":", controllerMethod);
    }
    const string actionConstant = "action";
    readonly string actionFormat;
    readonly string controllerMethod;

    public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo)
    {
        var isValidName = false;
        var value = controllerContext.Controller.ValueProvider.GetValue(actionFormat);

        if (value != null)
        {
            controllerContext.Controller.ControllerContext.RouteData.Values[actionConstant] = controllerMethod;
            isValidName = true;
        }
        return isValidName;
    }
}