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c# - How can i detect if the request is coming from a mobile browser in my asp.net MVC 3 - Stack Overflow
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爽快的手链
2 年前 |
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Learn more about Teamswhat i am trying to achieve is simple; Among all the view which i have in my web application, i have only two razor views that i have created a mobile version for them. so i need to redirect the users to these views if they are accessing the application from their mobile devices. i tried the following on the controller level but it did not redirect the users when i run my test on different mobile devices :-
if (Request.Browser.IsMobileDevice)
return View("MobileStudentStartAssessment");
else {
return View("StudentStartAssessment");
So is there another approach that i can follow which can detect most of the mobile devices?
Thanks
i tried this but it did not detect the mobile browsers ,, so i tried to update the browser definition from this link stephenwalther.com/blog/archive/2010/03/05/…,, but i found that the list was updated more than one year ago!!
– user889041
Aug 12, 2011 at 1:45
@qalife4ever: Try this one: owenbrady.net/browsercaps/OceanMobile.v4.browser.xml Which device are you testing with?
– BFree
Aug 12, 2011 at 1:47
Actually i am doing my test using the opera mobile emulator on my PC for Nokia E63 and another simulator for blackberry?,, i am afraid that this mean that the requests will not be detected as mobile requests,, but this should not be the case?!!
– user889041
Aug 12, 2011 at 1:54
I tried this, its worked fine for iPad, but its not worked for any android devices. what could be the solution which worked for both android as well as ios devices ?
– Mihir Shah
Jul 22, 2015 at 12:24
@MihirShah Android always has the term: "Android" in the user agent...so check using: Request.Headers["User-Agent"].IndexOf("Android") > 0
– bytedev
Dec 1, 2015 at 14:49
Assuming your mobile view is intended for all mobile devices (rather than having device-specific views,) you can inspect the user agent string to see which view you should return. This is just an example, but should get you pretty far along:
private static string[] mobileDevices = new string[] {"iphone","ppc",
"windows ce","blackberry",
"opera mini","mobile","palm",
"portable","opera mobi" };
public static bool IsMobileDevice(string userAgent)
// TODO: null check
userAgent = userAgent.ToLower();
return mobileDevices.Any(x => userAgent.Contains(x));
Then, in your controller action, you can call:
if (MobileHelper.IsMobileDevice(Request.UserAgent))
// Return mobile view
If you still find it's not recognizing your mobile browser, inspect the user agent string in the debugger and see if there's an identifier you can use.
You can put it in a helper class (that I've named MobileHelper.) You can then call that method from an action on the controller, and return the appropriate View depending on whether or not the condition is met.
– dlev
Aug 12, 2011 at 1:24
thanks for ur reply, i created a new class ,, but when i run my test the mobile user was not redirected to to mobile views? BR
– user889041
Aug 12, 2011 at 1:55
Debug the application, and set a breakpoint on that line in the controller. What is the value of Request.UserAgent?
– dlev
Aug 12, 2011 at 1:59
the Value for Request.UserAgent will be (Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)) when i access the application from the internet explore from my PC . And it will be (Opera/9.8(windows NT 6.1; Opera Mobi/14316;en) Presto/...) when i access the application using Opera mobiel emulator for nokia E63.thanks
– user889041
Aug 12, 2011 at 2:55
@qalife4ever Aha, so you can add the string "opera mobi" to the list, and that should get everything working. I've updated the answer to reflect that.
– dlev
Aug 12, 2011 at 2:56
I use the 51degrees.mobi package from nuget. This is more accurate in detecting all the different mobile devices. It worked right away.
When the browser is a mobile device, I redirect it to a different Area.
I also recommend reading Steve Sandersons blog on the topic.
Really nice, just what I needed, everyone should give this a try, so easy to integrate using nuget package - "Install-Package 51Degrees.mobi". Also see this official documentation helps to get started very quick - 51degrees.com/support/documentation/net/getting-started
– Manik Arora
Feb 3, 2015 at 7:33
Use WURFL http://wurfl.sourceforge.net/dotnet_index.php
If you using asp.net mvc you can use an ActionFilter
public class MobileActionFilterAttribute : ActionFilterAttribute
// The WURFL database contains information about a huge number of devices and mobile browsers.
// http://wurfl.sourceforge.net/
// http://wurfl.sourceforge.net/dotnet_index.php
// http://wurfl.sourceforge.net/help_doc.php
private static readonly IWURFLManager WurflManager;
static MobileActionFilterAttribute ()
IWURFLConfigurer configurer = new ApplicationConfigurer();
WurflManager = WURFLManagerBuilder.Build(configurer);
public override void OnActionExecuting(ActionExecutingContext filterContext)
HttpRequestBase request = filterContext.RequestContext.HttpContext.Request;
// We don't have ARR server for dev environment, so we still need to check to see if the current domain name is the mobile site.
if (request.Url.AbsoluteUri.StartsWith(SiteConfiguration.Current.MobileSiteAddress, StringComparison.OrdinalIgnoreCase))
return;
// Creates a WURFLRequest object from an ASP.NET HttpRequest object
WURFLRequest wurflRequest = WURFLRequestFactory.CreateRequest(HttpContext.Current.Request);
// Indicates whether the current user agent string refers to a desktop agent.
if (wurflRequest.IsDesktopRequest)
return;
// Get the information about the device
IDevice deviceInfo = WurflManager.GetDeviceForRequest(wurflRequest);
// Tells you if a device is a tablet computer (iPad and similar, regardless of OS)
bool isTablet = string.Equals(deviceInfo.GetCapability("is_tablet") ?? string.Empty, "true", StringComparison.OrdinalIgnoreCase);
if (isTablet)
// so we don't show the mobile site for iPad.
return;
// Indicates whether the current user agent string refers to a mobile device.
bool isMobileRequest = wurflRequest.IsMobileRequest;
// Tells you if a device is wireless or not. Specifically a mobile phone or a PDA are considered wireless devices, a desktop PC or a laptop are not
bool isWirelessDevice = string.Equals(deviceInfo.GetCapability("is_wireless_device") ?? string.Empty, "true", StringComparison.InvariantCultureIgnoreCase);
if (isMobileRequest && isWirelessDevice)
// we can redirect to the mobile site!
filterContext.Result = new RedirectResult(SiteConfiguration.Current.MobileSiteAddress);
wouldn't is_wireless_device act on any device which is wireless (ie: laptops also) or is the GetCapability already targeting only phones?
– Jaquarh
Mar 2, 2016 at 16:45
I use this method to detect mobile and desktop
if (eDurar.MobileDetect.DeviceType.Any(m => Request.UserAgent.Contains(m)))
Layout = "~/Views/Shared/_mobileLayout.cshtml";
@Html.Partial("mobileIndex");
Layout = "~/Views/Shared/_Layout.cshtml";
@Html.Partial("desktopIndex");
Using 51Degrees' Open source .Net Api, which you can get here, https://github.com/51Degrees/dotNET-Device-Detection, you can detect a huge variety of mobile devices.
You can do something similar to this in the 51Degrees.config file to enable redirect.
<redirect devicesFile="" timeout="20" firstRequestOnly="true"
originalUrlAsQueryString="false" mobileHomePageUrl="~/Mobile/StudentStartAssessment.aspx"
mobilePagesRegex="/Mobile/">
<locations>
<clear />
<location name="noredirect" url="" matchExpression="" enabled="true">
<add property="Url" matchExpression="[&|\?]noredirect" enabled="true" />
</location>
<location name="Mobile" url="~/Mobile/StudentStartAssessment.aspx" matchExpression=""
enabled="true">
<add property="IsMobile" matchExpression="True" enabled="true" />
</location>
</locations>
</redirect>
For more information on this you can look here https://51degrees.com/Developers/Documentation/APIs/NET-V32/Web-Apps/Configuration/Redirect
Disclosure: I work for 51Degrees
string u = Request.Headers["User-Agent"].ToString(); //Request.ServerVariables["HTTP_USER_AGENT"];
Regex b = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline);
Regex v = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline);
if ((b.IsMatch(u) || v.IsMatch(u.Substring(0, 4))))
return "Mobile device";
return "Web site";
public static class Utils
static Regex MobileCheck = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled);
static Regex MobileVersionCheck = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled);
public static bool fBrowserIsMobile()
Debug.Assert(System.Web.HttpContext.Current != null);
if (System.Web.HttpContext.Current.Request != null && System.Web.HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"] != null)
var u = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"].ToString();
if (u.Length < 4)
return false;
if (MobileCheck.IsMatch(u) || MobileVersionCheck.IsMatch(u.Substring(0, 4)))
return true;
return false;
To check the request is from Mobile device or not you can use
HttpContext.Request.Browser.IsMobileDevice
as this will return a boolean result.
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