ASP.NET MVC第023天_Ajax Helper_Ajax.RouteLink使用筆記part3

- 12月 09, 2021

Ajax.RouteLink() 跟 Ajax.ActionLink() 兩者皆為產生出超連結的 <a> tag

只不過產生方式不同

Ajax.RouteLink() 別於 Ajax.ActionLink() 可支援直接設置特定Controller跟Action

是只可以透過設置路由模板名稱(路由虛擬路徑)的方式進行

以下是Ajax.RouteLink()的多載

public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, object routeValues, AjaxOptions ajaxOptions);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, AjaxOptions ajaxOptions);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, AjaxOptions ajaxOptions, object htmlAttributes);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, object routeValues, AjaxOptions ajaxOptions);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, string protocol, string hostName, string fragment, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);

那其實就是比ActionLink多出一個routeName參數

路由預設就是在之前文章介紹過的

預設MVC專案路由會在App_Start 目錄的RouteConfig.cs中

這裡我們多客製了一條路由

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace MvcAjaxTestApp
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );

            routes.MapRoute(
                name: "News_Blog",
                url: "News_Blog/{controller}/{id}/{action}-{name}",
                defaults: new { Controller = "Me", action = "Ax", id = UrlParameter.Optional }
            );

        }
    }
}

比之前具變化性一點

沒有routeName參數情況

~/Home/Index.chtml

@{
    ViewBag.Title = "Home Page";
}

<div class="row">
    <div class="col-md-4">
        @Ajax.RouteLink("張三", new { controller = "My", action = "Photo" }, new AjaxOptions() { HttpMethod = "Get" })
    </div>
</div>

而RouteLink在使用不具routeName參數的多載方法時

預設其實就是抓RouteConfig.cs中第一種路由設置模式

這裡調整路由的上下順序再來觀察

會看到預設抓第一種的路由模式

有routeName參數情況

這裡調整View呼叫的程式碼

~/Home/Index.chtml

這裡指定的路由都必須是有定義在RouteConfig.cs中的

這裡指定News_Blog會導向該路由

改指定Default會導向預設路由

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第25個冬天

ASP.NET MVC第023天_Ajax Helper_Ajax.RouteLink使用筆記part3

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