需要什么名称空间 [英] what namespace is required

问题描述

此代码用于检查程序是否已在系统上安装

private void button1_Click(object sender, EventArgs e)
       {
           IsApplictionInstalled(AcrobatReader);
       }
       public static bool IsApplictionInstalled(string p_name)
       {
           string displayName;
           RegistryKey key;
           // search in: CurrentUser
           key = Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall");
           foreach (String keyName in key.GetSubKeyNames())
           {
               RegistryKey subkey = key.OpenSubKey(keyName);
               displayName = subkey.GetValue("DisplayName") as string;
               if (p_name.Equals(displayName, StringComparison.OrdinalIgnoreCase) == true)
               {
                   return true;
               }
           }

显示错误 类型或名称空间"registryKey"

it Displays error type or namespace ''registryKey'' could not be found

推荐答案

http://tinyurl.com/33j8jkm [ ^ ]

尝试添加此内容

使用System.Security.Permissions;
使用Microsoft.Win32;

Try by adding this

uing System.Security.Permissions;
using Microsoft.Win32;

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