How asp.net MVC returns the original page after performing a task __.net

Many times after the deletion of an element, we all want to return to the original page, how to achieve it.

Suppose in the index.cshtml (or aspx) of Xcontroller:

<a>
 

Delete </a>, in order for the deletion to return to the index page, you can use:

<a>
 

And in the XController.cs, the original


 
[HttpPost]
ActionResult Delete (int id)
{
    try
    {
        ...
        Return Redirecttoaction (...);
    }
    Catch
    {
    }
}
 

 
To

[HttpPost]

ActionResult Delete (int id, string backurl)
{
    try
    {
        ...
        ) Return Redirect (Backurl);
    }
    Catch
    {
    }
}
 
Request.url contains all the address information (including parameters), which is a URI type instead of string, so many additional operations can be performed (such as as long as address/server/query parameters, etc.), and the details can be searched online.

Never tried "/area/controller/action/id" how to do, should be roughly similar.


2011-08-18 added: When there is a "&" in the Backurl (where there are multiple parameters to return), this will be a direct error , you must:

<a>
 
In order to encode the return code (all of the special characters into% or whatever, Chinese also run).

If you write more, you'll find trouble as a helper:

    public static partial class Helper
    {public
        static string Returnurlof (this HtmlHelper htmlhelper, Httprequestbase request)
        {return
            httputility.urlencode (request). Url.tostring ());
        }
    
 

Write the Html.returnurlof (request) in the place where you originally wanted to write those things (request is a property of view and is available as HTML).
But not the laziest is only more lazy, if you and I have the same <a> encapsulation, then the interface can be encapsulated directly into:

@Html. Link ("x", "/sfc/categories/delete?rootid=" + root.id + "&id=" + model.id, Returnrequest:request)
 
All encode and request issues are handled inside link, which is the ultimate practice.




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