我没有足够的代表在正确的地方发表评论，但我花了一整天的时间在这上面，所以想分享。

在尝试实现“MultipleButtonAttribute”解决方案时，ValueProvider.GetValue(keyValue)将错误地返回null。

原来我引用的是System.Web.MVC版本3.0，而它应该是4.0(其他程序集是4.0)。我不知道为什么我的项目没有正确升级，我没有其他明显的问题。

所以如果你的ActionNameSelectorAttribute不工作…检查。

这是我发现的最好的方法:

http://iwayneo.blogspot.co.uk/2013/10/aspnet-mvc-action-selector-with-list.html

代码如下:

    /// <summary>
    /// ActionMethodSelector to enable submit buttons to execute specific action methods.
    /// </summary>
    public class AcceptParameterAttribute : ActionMethodSelectorAttribute
   {
        /// <summary>
        /// Gets or sets the value to use to inject the index into
        /// </summary>
       public string TargetArgument { get; set; }

       /// <summary>
       /// Gets or sets the value to use in submit button to identify which method to select. This must be unique in each controller.
       /// </summary>
       public string Action { get; set; }

       /// <summary>
       /// Gets or sets the regular expression to match the action.
       /// </summary>
       public string ActionRegex { get; set; }

       /// <summary>
       /// Determines whether the action method selection is valid for the specified controller context.
       /// </summary>
       /// <param name="controllerContext">The controller context.</param>
       /// <param name="methodInfo">Information about the action method.</param>
       /// <returns>true if the action method selection is valid for the specified controller context; otherwise, false.</returns>
       public override bool IsValidForRequest(ControllerContext controllerContext, MethodInfo methodInfo)
       {

           if (controllerContext == null)
           {
               throw new ArgumentNullException("controllerContext");
           }

           Func<NameValueCollection> formGetter;
           Func<NameValueCollection> queryStringGetter;

           ValidationUtility.GetUnvalidatedCollections(HttpContext.Current, out formGetter, out queryStringGetter);

           var form = formGetter();
           var queryString = queryStringGetter();

           var req = form.AllKeys.Any() ? form : queryString;

           if (!string.IsNullOrEmpty(this.ActionRegex))
           {
               foreach (var key in req.AllKeys.Where(k => k.StartsWith(Action, true, System.Threading.Thread.CurrentThread.CurrentCulture)))
               {
                   if (key.Contains(":"))
                   {
                       if (key.Split(':').Count() == this.ActionRegex.Split(':').Count())
                       {
                           bool match = false;
                           for (int i = 0; i < key.Split(':').Count(); i++)
                           {
                               if (Regex.IsMatch(key.Split(':')[0], this.ActionRegex.Split(':')[0]))
                               {
                                   match = true;
                               }
                               else
                               {
                                   match = false;
                                   break;
                               }
                           }

                           if (match)
                           {
                               return !string.IsNullOrEmpty(req[key]);
                           }
                       }
                   }
                   else
                   {
                       if (Regex.IsMatch(key, this.Action + this.ActionRegex))
                       {
                           return !string.IsNullOrEmpty(req[key]);
                       }
                   }

               }
               return false;
           }
           else
           {
               return req.AllKeys.Contains(this.Action);
           }
       }
   }

享受一个没有代码气味的多提交按钮的未来。

谢谢你！

以下是最适合我的方法:

<input type="submit" value="Delete" name="onDelete" />
<input type="submit" value="Save" name="onSave" />


public ActionResult Practice(MyModel model, string onSave, string onDelete)
{
    if (onDelete != null)
    {
        // Delete the object
        ...
        return EmptyResult();
    }

    // Save the object
    ...
    return EmptyResult();
}

使用自定义助手(创建一个“Helpers.”文件)。cshtml" App_Code文件夹内，在你的项目的根)用javascript重写(在一个'onclick'事件)表单的'动作'属性，你想要的东西，然后提交它。

助手可以是这样的:

@helper SubmitButton(string text, string controller,string action)
{   
    var uh = new System.Web.Mvc.UrlHelper(Context.Request.RequestContext);
    string url = @uh.Action(action, controller, null);   
    <input type=button  onclick="(
                                       function(e)
                                                 {
                                                   $(e).parent().attr('action', '@url'); //rewrite action url
                                                   //create a submit button to be clicked and removed, so that onsubmit is triggered
                                                   var form = document.getElementById($(e).parent().attr('id'));
                                                   var button = form.ownerDocument.createElement('input');
                                                   button.style.display = 'none';
                                                   button.type = 'submit';
                                                   form.appendChild(button).click(); 
                                                   form.removeChild(button);              
                                                  }
                                      )(this)" value="@text"/>
}

然后把它用作:

@Helpers.SubmitButton("Text for 1st button","ControllerForButton1","ActionForButton1")
@Helpers.SubmitButton("Text for 2nd button","ControllerForButton2","ActionForButton2")
...

在你的表单里面。

我来派对已经很晚了，但现在开始… 我的实现借用了@mkozicki，但需要更少的硬编码字符串来出错。需要4.5+框架。实际上，控制器方法名应该是路由的关键。

标记。按钮名称必须以“action:[controllerMethodName]”为键

(注意使用c# 6的API名称，提供了对希望调用的控制器方法名称的特定类型引用。

<form>
    ... form fields ....
    <button name="action:@nameof(MyApp.Controllers.MyController.FundDeathStar)" type="submit" formmethod="post">Fund Death Star</button>
    <button name="action:@nameof(MyApp.Controllers.MyController.HireBoba)" type="submit" formmethod="post">Hire Boba Fett</button>
</form>

控制器:

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

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

属性的魔法。注意使用CallerMemberName功能。

[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;
    }
}

它短小而紧凑:

Jeroen Dop回答了这个问题

<input type="submit" name="submitbutton1" value="submit1" />
<input type="submit" name="submitbutton2" value="submit2" />

在后面的代码中这样做

 if( Request.Form["submitbutton1"] != null)
{
    // Code for function 1
}
else if(Request.Form["submitButton2"] != null )
{
       // code for function 2
}

祝你好运。