如何在 C# 中删除注册表值
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How to delete a registry value in C#
提问by ebattulga
I can get/set registry values using the Microsoft.Win32.Registry class. For example,
我可以使用 Microsoft.Win32.Registry 类获取/设置注册表值。例如，
Microsoft.Win32.Registry.SetValue(
@"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run",
"MyApp",
Application.ExecutablePath);
But I can't delete any value. How do I delete a registry value?
但我无法删除任何值。如何删除注册表值？
采纳答案by Jon Skeet
To delete the value set in your question:
要删除问题中设置的值：
string keyName = @"Software\Microsoft\Windows\CurrentVersion\Run";
using (RegistryKey key = Registry.CurrentUser.OpenSubKey(keyName, true))
{
if (key == null)
{
// Key doesn't exist. Do whatever you want to handle
// this case
}
else
{
key.DeleteValue("MyApp");
}
}
Look at the docs for Registry.CurrentUser, RegistryKey.OpenSubKeyand RegistryKey.DeleteValuefor more info.
看看文档进行Registry.CurrentUser，RegistryKey.OpenSubKey并RegistryKey.DeleteValue获取更多信息。
回答by S?ren Kuklau
回答by Binoj Antony
RegistryKey registrykeyHKLM = Registry.LocalMachine;
string keyPath = @"Software\Microsoft\Windows\CurrentVersion\Run\MyApp";
registrykeyHKLM.DeleteValue(keyPath);
registrykeyHKLM.Close();
回答by Even Mien
To delete all subkeys/values in the tree (~recursively), here's an extension method that I use:
要删除树中的所有子键/值（~递归），这是我使用的扩展方法：
public static void DeleteSubKeyTree(this RegistryKey key, string subkey,
bool throwOnMissingSubKey)
{
if (!throwOnMissingSubKey && key.OpenSubKey(subkey) == null) { return; }
key.DeleteSubKeyTree(subkey);
}
Usage:
用法：
string keyName = @"Software\Microsoft\Windows\CurrentVersion\Run";
using (RegistryKey key = Registry.CurrentUser.OpenSubKey(keyName, true))
{
key.DeleteSubKeyTree("MyApp",false);
}
