是否有一些简单的方法来处理来自同一个表单的多个提交按钮?例如:

<% Html.BeginForm("MyAction", "MyController", FormMethod.Post); %>
<input type="submit" value="Send" />
<input type="submit" value="Cancel" />
<% Html.EndForm(); %>

知道如何在ASP中做到这一点吗?NET框架测试版?我在谷歌上搜索的所有例子中都有单个按钮。


当前回答

基于mkozicki的答案,我提出了一个有点不同的解决方案。我仍然使用ActionNameSelectorAttribute,但我需要处理两个按钮“保存”和“同步”。它们做的几乎是一样的,所以我不想有两个动作。

属性:

public class MultipleButtonActionAttribute : ActionNameSelectorAttribute
{        
    private readonly List<string> AcceptedButtonNames;

    public MultipleButtonActionAttribute(params string[] acceptedButtonNames)
    {
        AcceptedButtonNames = acceptedButtonNames.ToList();
    }

    public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo)
    {            
        foreach (var acceptedButtonName in AcceptedButtonNames)
        {
            var button = controllerContext.Controller.ValueProvider.GetValue(acceptedButtonName);
            if (button == null)
            {
                continue;
            }                
            controllerContext.Controller.ControllerContext.RouteData.Values.Add("ButtonName", acceptedButtonName);
            return true;
        }
        return false;
    }
}

view

<input type="submit" value="Save" name="Save" />
<input type="submit" value="Save and Sync" name="Sync" />

控制器

 [MultipleButtonAction("Save", "Sync")]
 public ActionResult Sync(OrgSynchronizationEditModel model)
 {
     var btn = this.RouteData.Values["ButtonName"];

我还想指出,如果动作做不同的事情,我可能会遵循mkozicki的帖子。

其他回答

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;
    }
}

我的JQuery方法使用扩展方法:

public static MvcHtmlString SubmitButtonFor<TController>(this HtmlHelper helper, Expression<Action<TController>> action, string value) where TController : Controller
{
    RouteValueDictionary routingValues = Microsoft.Web.Mvc.Internal.ExpressionHelper.GetRouteValuesFromExpression(action);

    var onclick = string.Format("$('form').first().attr('action', '/{0}')", string.Join("/", routingValues.Values.ToArray().Where(x => x != null).Select(x => x.ToString()).ToArray()));
    var html = "<input type=\"submit\" value=\"" + value + "\" onclick=\"" + onclick + "\" />";

    return MvcHtmlString.Create(html);
}

你可以这样使用它:

@(Html.SubmitButtonFor<FooController>(c => c.Save(null), "Save"))

它是这样渲染的:

<input type="submit" value="Save" onclick="$('form').first().attr('action', '/Foo/Save')" >

下面是基于Maarten Balliauw的帖子和评论,针对多个提交按钮问题的一个非常干净的基于属性的解决方案。

[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class MultipleButtonAttribute : ActionNameSelectorAttribute
{
    public string Name { get; set; }
    public string Argument { get; set; }

    public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo)
    {
        var isValidName = false;
        var keyValue = string.Format("{0}:{1}", Name, Argument);
        var value = controllerContext.Controller.ValueProvider.GetValue(keyValue);

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

        return isValidName;
    }
}

剃须刀:

<form action="" method="post">
 <input type="submit" value="Save" name="action:Save" />
 <input type="submit" value="Cancel" name="action:Cancel" />
</form>

和控制器:

[HttpPost]
[MultipleButton(Name = "action", Argument = "Save")]
public ActionResult Save(MessageModel mm) { ... }

[HttpPost]
[MultipleButton(Name = "action", Argument = "Cancel")]
public ActionResult Cancel(MessageModel mm) { ... }

更新:Razor页面提供相同的功能开箱即用。对于新的开发来说,它可能更可取。

Eilon建议你可以这样做:

If you have more than one button you can distinguish between them by giving each button a name: <input type="submit" name="SaveButton" value="Save data" /> <input type="submit" name="CancelButton" value="Cancel and go back to main page" /> In your controller action method you can add parameters named after the HTML input tag names: public ActionResult DoSomeStuff(string saveButton, string cancelButton, ... other parameters ...) { ... } If any value gets posted to one of those parameters, that means that button was the one that got clicked. The web browser will only post a value for the one button that got clicked. All other values will be null. if (saveButton != null) { /* do save logic */ } if (cancelButton != null) { /* do cancel logic */ }

我喜欢这个方法,因为它不依赖于提交按钮的值属性,这个属性比分配的名称更有可能改变,并且不需要启用javascript

看到的: http://forums.asp.net/p/1369617/2865166.aspx#2865166

我的解决方案是使用2个asp面板:

< asp:面板ID = " . . "DefaultButton = " ID_OF_SHIPPING_SUBMIT_BUTTON "…> < / asp:面板>