MVC Html.ActionButton

问题描述

有没有人写的吗？我希望它像一个链接，但看起来像一个按钮。一个按钮的表格不会做它，我不想任何职务。

Has anyone written one? I want it to behave like a link but look like a button. A form with a single button wont do it has I don't want any POST.

推荐答案

要做到这一点最简单的方法是有一个小表格 标签方法=获取，其中放置一个提交按钮：

The easiest way to do it is to have a small form tag with method="get", in which you place a submit button:

<form method="get" action="/myController/myAction/">
    <input type="submit" value="button text goes here" />
</form>

您当然可以写一个非常简单的扩展方法，它采用按钮文本和 RouteValueDictionary （或匿名类型与routevalues​​），并构建形式，所以你赢了'T不得不到处重新做。

You can of course write a very simple extension method that takes the button text and a RouteValueDictionary (or an anonymous type with the routevalues) and builds the form so you won't have to re-do it everywhere.

修改：为响应cdmckay的回答，下面是一个使用，而不是一个普通的<$ c中的 TagBuilder 类替代code $ C>的StringBuilder 来构建形式，多为清晰：

EDIT: In response to cdmckay's answer, here's an alternative code that uses the TagBuilder class instead of a regular StringBuilder to build the form, mostly for clarity:

using System.Web.Mvc;
using System.Web.Mvc.Html;
using System.Web.Routing;

namespace MvcApplication1
{
    public static class HtmlExtensions
    {
    	public static string ActionButton(this HtmlHelper helper, string value, 
                              string action, string controller, object routeValues)
    	{
    		var a = (new UrlHelper(helper.ViewContext.RequestContext))
    					.Action(action, controller, routeValues);

    		var form = new TagBuilder("form");
    		form.Attributes.Add("method", "get");
    		form.Attributes.Add("action", a);

    		var input = new TagBuilder("input");
    		input.Attributes.Add("type", "submit");
    		input.Attributes.Add("value", value);

    		form.InnerHtml = input.ToString(TagRenderMode.SelfClosing);

    		return form.ToString(TagRenderMode.Normal);
    	}
    }
}

此外，相对于cdmckay的code，这个人会实际编译）据我所知，可能有相当多的开销在这个code，但我希望您将不再需要在每一页上运行了很多次。在你做的情况下，有可能是一堆的优化，你可以做的。

Also, as opposed to cdmckay's code, this one will actually compile ;) I am aware that there might be quite a lot of overhead in this code, but I am expecting that you won't need to run it a lot of times on each page. In case you do, there is probably a bunch of optimizations that you could do.

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