Can registry keys be deleted only in one level up?

Question

In our application we are having different components and registry key will be created in component Name.

For ex.

We are having a component named Notification and we are having registry key as follows

RegistryKey rKeyNotification = Registry.LocalMachine.OpenSubKey("SOFTWARE\\CompanyName\\ProdName\\Notification");

Now i wanted to delete this key and all the subkeys.

I was trying to delete this rKeyNotification completely. But i don't find any way.

I was trying like follows.

if (rKeyNotification != null) {

   rKeyNotification.DeleteSubKeyTree("Notification");
}

But this piece will look for RegistryKey rKeyNotification =Registry.LocalMachine.OpenSubKey("SOFTWARE\\CompanyName\\ProdName\\Notification\\Notification");

There is no option like rKeyNotification.DeleteSubKeyTree()

Should i always go up one level (Registry.LocalMachine.OpenSubKey("SOFTWARE\\CompanyName\\ProdName) then only delete the key?

Answer 1

There is no method to delete a key itself, but you can use Registry.LocalMachine directly:

string keyname = @"SOFTWARE\CompanyName\ProdName\Notification";
Registry.LocalMachine.DeleteSubKeyTree(keyname);