C# 获取系统当前IE版本号

浏览器-获取IE版本号

读取IE的版本号

         /// <summary>
         /// 获取IE版本号
         /// </summary>
         /// <param name="text"></param>
         /// <returns></returns>
         public static string GetMajorVersion(string text)
         {
             //通过WebBrowser方案获取版本号
             int mainVer = (new WebBrowser()).Version.Major;
             return mainVer;
         }    

注册表-获取IE版本号

1. 注册表中，IE的位置：

计算机\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer

2. 通过注册表读取IE配置

     RegistryKey mainKey = Registry.LocalMachine;
     RegistryKey subKey = mainKey.OpenSubKey(@"SOFTWARE\Microsoft\Internet Explorer");

3. 获取主版本号（8/9/10 etc.）

     /// <summary>
     /// IE浏览器版本号帮助类
     /// </summary>
     public static class IEVersionHelper
     {
         /// <summary>
         /// 获取IE主版本号
         /// </summary>
         /// <param name="text"></param>
         /// <returns></returns>
         public static string GetMajorVersion(string text)
         {
             var majorVersion = string.Empty;

             var detailVersion = GetDetailVersion(text);
             if (!string.IsNullOrWhiteSpace(detailVersion))
             {
                 if (detailVersion.IndexOf(".", StringComparison.Ordinal) is int connectedCharFirstIndex && connectedCharFirstIndex > -)
                 {
                     majorVersion = detailVersion.Substring(, connectedCharFirstIndex);
                 }
                 else
                 {
                     majorVersion = detailVersion;
                 }
             }

             return majorVersion;
         }

         /// <summary>
         /// 获取IE详细版本号
         /// </summary>
         /// <param name="text"></param>
         /// <returns></returns>
         public static string GetDetailVersion(string text)
         {
             //通过注册表获取用户IE版本号
             RegistryKey mainKey = Registry.LocalMachine;
             RegistryKey subKey = mainKey.OpenSubKey(text);

             var versionNumber = subKey?.GetValue("svcVersion")?.ToString() ?? string.Empty;
             if ( string.IsNullOrEmpty(versionNumber))
             {
                 versionNumber = subKey?.GetValue("svcUpdateVersion")?.ToString() ?? string.Empty;
                 if (string.IsNullOrEmpty(versionNumber))
                 {
                     versionNumber = subKey?.GetValue("Version")?.ToString() ?? string.Empty;
                 }
             }
             return versionNumber;
         }
     }