在 C# 中获取已安装应用程序列表

• 下载演示 - 5 KB
• 下载源代码 - 49.3 KB

引言

在本技巧中，我们将解释如何在 C# 语言中列出系统上已安装的应用程序及其安装细节。

背景

此技巧基于一个注册表键，其地址为 HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall，您可以在其中找到许多子键，这些子键可以帮助我们获取已安装应用程序的各种详细信息。

Using the Code

因此，为了完成我们想要做的事情，我们必须遵循以下步骤

1. 在您的设计窗体中添加一个 listviewer 和一个按钮。
2. 我们想要使用 "RegistryKey" 类，因此将 "using Microsoft.Win32" 添加到您的项目 using 语句中。
3. 将此代码放在您的按钮点击事件中

   string uninstallKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall";
               using (RegistryKey rk = Registry.LocalMachine.OpenSubKey(uninstallKey))
               {
                   foreach (string skName in rk.GetSubKeyNames())
                   {
                       using (RegistryKey sk = rk.OpenSubKey(skName))
                       {
                           try
                           {
   
                               var displayName = sk.GetValue("DisplayName");
                               var size = sk.GetValue("EstimatedSize");
   
                               ListViewItem item;
                               if (displayName != null)
                               {
                                   if (size != null)
                                       item = new ListViewItem(new string[] {displayName.ToString(), 
                                                          size.ToString()});
                                   else
                                       item = new ListViewItem(new string[] { displayName.ToString() });
                                   lstDisplayHardware.Items.Add(item);
                               }
                           }
                           catch (Exception ex)
                           { }
                       }
                   }
                   label1.Text += " (" + lstDisplayHardware.Items.Count.ToString() + ")";
               }  

   说明：在此代码中，我们首先在特定地址（uninstallKey）中定义了一个注册表命令。然后，我们使用 DisplayName 和 EstimatedSize 子键，这些子键向我们显示所有已安装应用程序的 Name 和 Size ，最后，结果将在 listviewer 中显示。

4. 您可以使用下面的列表中所有子键

   Value / Windows Installer property
   
   DisplayName ==> ProductName property
   DisplayVersion ==> Derived from ProductVersion property
   Publisher ==> Manufacturer property
   VersionMinor ==> Derived from ProductVersion property
   VersionMajor ==> Derived from ProductVersion property
   Version ==> Derived from ProductVersion property
   HelpLink ==> ARPHELPLINK property
   HelpTelephone ==> ARPHELPTELEPHONE property
   InstallDate ==> The last time this product received service. 
   The value of this property is replaced each time a patch is applied or removed from 
   the product or the /v Command-Line Option is used to repair the product. 
   If the product has received no repairs or patches this property contains 
   the time this product was installed on this computer.
   InstallLocation ==> ARPINSTALLLOCATION property
   InstallSource ==> SourceDir property
   URLInfoAbout ==> ARPURLINFOABOUT property
   URLUpdateInfo ==> ARPURLUPDATEINFO property
   AuthorizedCDFPrefix ==> ARPAUTHORIZEDCDFPREFIX property
   Comments ==> Comments provided to the Add or Remove Programs control panel.
   Contact ==> Contact provided to the Add or Remove Programs control panel.
   EstimatedSize ==> Determined and set by the Windows Installer.
   Language ==> ProductLanguage property
   ModifyPath ==> Determined and set by the Windows Installer.
   Readme ==> Readme provided to the Add or Remove Programs control panel.
   UninstallString ==> Determined and set by Windows Installer.
   SettingsIdentifier ==> MSIARPSETTINGSIDENTIFIER property

来源： http://msdn.microsoft.com/en-us/library/aa372105(v=vs.85).aspx

注意： 您也可以在代码中使用以下方法代替上述代码

try
    {
      string[] row = { sk.GetValue("DisplayName").ToString() , 
      sk.GetValue("EstematedSize").ToString()};
      var listViewItem = new ListViewItem(row);
      lstDisplayHardware.Items.Add(listViewItem);
    }

catch (Exception ex)
    { }

现在构建您的程序！