C# 如何在 ASP .NET MVC 视图中获取当前路由的 url 参数值
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How to get url parameter value of current route in view in ASP .NET MVC
提问by Dmytro
For example I am on page http://localhost:1338/category/category1?view=list&min-price=0&max-price=100
例如我在页面上 http://localhost:1338/category/category1?view=list&min-price=0&max-price=100
And in my view I want to render some form
在我看来，我想呈现某种形式
@using(Html.BeginForm("Action", "Controller", new RouteValueDictionary { { /*this is poblem place*/ } }, FormMethod.Get))
{
<!--Render some controls-->
<input type="submit" value="OK" />
}
What I want is to get viewparameter value from current page link to use it for constructing form get request. I tried @using(Html.BeginForm("Action", "Controller", new RouteValueDictionary { { "view", ViewContext.RouteData.Values["view"] } }, FormMethod.Get))but it doesn't help.
我想要的是view从当前页面链接获取参数值以使用它来构建表单获取请求。我试过了，@using(Html.BeginForm("Action", "Controller", new RouteValueDictionary { { "view", ViewContext.RouteData.Values["view"] } }, FormMethod.Get))但没有帮助。
采纳答案by Joel Etherton
You should still have access to the Request object from within the view:
您应该仍然可以从视图中访问 Request 对象：
@using(Html.BeginForm(
"Action",
"Controller",
new RouteValueDictionary {
{ "view", Request.QueryString["view"] } }, FormMethod.Get))
回答by James
From an MVC perspective, you would want to pass the value from the controller into the page e.g.
从 MVC 的角度来看，您可能希望将值从控制器传递到页面中，例如
public ActionResult ViewCategory(int categoryId, string view)
{
ViewBag.ViewType = view;
return View();
}
Then in your view you an access @ViewBag.ViewType, you will need to cast it to a string though as it will by default be object(ViewBagis a dynamic object).
然后在您的视图中您是一个 access @ViewBag.ViewType，您需要将它转换为一个字符串，尽管默认情况下它是object(ViewBag是一个动态对象)。
回答by Daniel
回答by Iren Saltal?
You can't access Request object directly in ASP .NET Core. Here is a way to do it.
您不能直接在 ASP .NET Core 中访问 Request 对象。这是一种方法。
@ViewContext.HttpContext.Request.Query["view"]
