Get client parameter operating system information in asp.net

  This article mainly introduces how to obtain the client parameters or operating system information in asp.net, the need for friends can refer to the following

  Code as follows:///<summary> ///Get user operating System Information  ///</summary> ///<returns></returns& gt;  public String Getuseros ()   {  string strsysversion = "Other";  httprequest Request = httpcontext.cur Rent. request;  string stragentinfo = request.servervariables["Http_user_agent"];    if ( Stragentinfo.contains ("NT 6.0"))   {  strsysversion = "Windows Vista"; }  else if ( Stragentinfo.contains ("NT 5.2"))   {  strsysversion = "Windows 2003"; }  else if ( Stragentinfo.contains ("NT 5.1"))   {  strsysversion = "Windows XP"; }  else if ( Stragentinfo.contains ("NT 5"))   {  strsysversion = "Windows"; }  else if ( Stragentinfo.contains ("NT 4.9"))   {  strsysversion = "Windows ME"; }  else if ( Stragentinfo.contains ("NT 4"))   {  strsysversion = "Windows NT4"; }  else if (stragentinfo.contains ("NT 98"))   {  StrsysVersion = "Windows; "}  else if (Stragentinfo.contains ("NT)")   {  strsysversion = "Windows 95";  }  Else if (Strsysversion.tolower (). Contains ("Mac"))   {  strsysversion = "Mac"; }  else if (strsysversion.tolower). Contains ("Unix"))   {  strsysversion = "Unix"; }  else if (). Contains ("Linux"))   {  strsysversion = "Linux"; }  else if ("Strsysversion.contains")   {  strsysversion = "SunOS"; }  return strsysversion; }     ///<summary&gt ; ///Get client browser type and version  ///</summary> ///<returns></returns>  public string Getuserbrowser ()   {  string strbrowser = "Other";  httprequest Request = httpcontext.current.request;  String stragentinfo = request.servervariables["Http_user_agent"];  if (Regex.IsMatch (Stragentinfo, "MSIE") ([//d]/ /. [//d]) ", Regexoptions.ignorecase | Regexoptions.compiled))   {  Strbrowser = Regex.match (Stragentinfo, "MSIE" [//d]//.[ D]). Result ("ie:$1"); }  else if (Regex.IsMatch (Stragentinfo, "Opera" ([//d]//.[ D]) ", Regexoptions.ignorecase | regexoptions.compiled))   {  Strbrowser = Regex.match (Stragentinfo, "Opera" ([//d]//.[ D]). Result ("opera:$1"); }  else if (Regex.IsMatch stragentinfo, "opera///" ([//d]//.[ D]) ", Regexoptions.ignorecase | regexoptions.compiled))   {  Strbrowser = Regex.match (Stragentinfo, "opera///" [//d]//.[ D]). Result ("opera:$1"); }  else if (Regex.IsMatch stragentinfo, "firefox///" ([//d]//.[ D]) ", Regexoptions.ignorecase | regexoptions.compiled))   {  Strbrowser = Regex.match (Stragentinfo, "firefox///" [//d]//.[ D]). Result ("firefox:$1"); }  return strbrowser; }    #region getip ()  ///<summary>& nbsp Get ip ///</summary> ///<returns></returns>  public StrinG GetIP ()   {  string uip = "";  if (httpcontext.current.request.servervariables["Http_via"]!= null)   {  uip = httpcontext.current.request.servervariables["Http_x_forwarded_for"]. ToString (); }  else  {  uip = httpcontext.current.request.servervariables["REMOTE_ADDR"]. ToString (); }  return uip; }  #endregion