in a controller in asp.net-mvc how can i get information about the users browser?

I am logging errors on my asp.net-mvc site and I wanted to see if there is anyway to detect the users browser info (name, version, etc) as it seems like people are getting issue but its because th开发者_如何学编程ey are using very old browser. This info would help me avoid debugging time if I know they are using a "Not supported" browser.

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You can get the supplied User Agent which gives browser information:

Request.UserAgent

There is a site which lists browser user agent strings: http://www.useragentstring.com

Other values you may be interested in.

Request.Browser.Platform
Request.Browser.Version
Request.Browser.EcmaScriptVersion

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You may try the Request.Browser property. It will contain pretty much everything you might need about the client browser (assuming it is sending the UserAgent header properly of course).