如何从ASP.NET Core中的Razor View获取Url中id的值 [英] How to get value of id in Url from Razor View in ASP.NET Core

问题描述

我有一个简单的ASP.NET Core Web应用程序，带有类似http://localhost:5050/Posts/Create/3的页面.

在我的Razor视图Views/Posts/Create.cshtml中，如何获取值"3"，以便创建类似于<a href="/Blogs/Details/3">« Back to Blog</a>的链接?

到目前为止，已使用以下标记帮助器创建了链接，但我不知道要为asp-route-id放置什么内容:

<a asp-controller="Blogs" asp-action="Details" asp-route-id="" class="btn btn-default btn pull-right">&laquo; Back</a>

我只是使用默认的mvc路由:

app.UseMvc(routes =>
{
    routes.MapRoute(
        name: "default",
        template: "{controller=Home}/{action=Index}/{id?}");
});

我知道我可以从模型(即Model.Blog.BlogId)中获取它，但是我希望使用Views/Post/Create.cshtml中的Request.Query["id"]之类的东西从网址中获取它.

我尝试了asp-route-id="@Context.Request.Query["id"].

解决方案

类似于Context.GetRouteData().Values["id"];的东西?

也 http://www.blakepell.com/how-to-get-the-current-route-in-a-view-with-asp-net-5-mvc-6

I have a simple ASP.NET Core web application with a page like such http://localhost:5050/Posts/Create/3.

In my Razor View Views/Posts/Create.cshtml, how would I be able to get the value "3" so that I can create a link like <a href="/Blogs/Details/3">« Back to Blog</a>?

So far, created the link using the following Tag Helper, but I don't know what to put for asp-route-id:

<a asp-controller="Blogs" asp-action="Details" asp-route-id="" class="btn btn-default btn pull-right">&laquo; Back</a>

I am just using the default mvc route:

app.UseMvc(routes =>
{
    routes.MapRoute(
        name: "default",
        template: "{controller=Home}/{action=Index}/{id?}");
});

I know I can get it from the Model (i.e., Model.Blog.BlogId), but I'm looking to get it from the Url using something like Request.Query["id"] in Views/Post/Create.cshtml.

I tried asp-route-id="@Context.Request.Query["id"].

解决方案

Something like that Context.GetRouteData().Values["id"]; ?

Also http://www.blakepell.com/how-to-get-the-current-route-in-a-view-with-asp-net-5-mvc-6

这篇关于如何从ASP.NET Core中的Razor View获取Url中id的值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！