注册表路径中的Vb.net通配符

Question

I want to read a registry value which resides in:

HKEY_LOCAL_MACHINE\SOFTWARE\MyProgram\PROG7.0.0\Info

The value name is " Information " but the key " PROG7.0.0 " may have a variable name like " PROG7.2.111 ", changing the path to:

HKEY_LOCAL_MACHINE\SOFTWARE\MyProgram\PROG7.2.111\Info

The variable name will always be of the form " PROG7.xx.xxx ", where x is an integer. Also, there will always be exactly one subkey of such name in HKEY_LOCAL_MACHINE\\SOFTWARE\\MyProgram

I know i can use Regestry.GetValue method for reading a registry value but in my case the path is a variable - how can i go about it?

Thanks a lot!

Answer 1

How to iterate all keys at a specific registry path

using System;

using Microsoft.Win32;

namespace RegistryLister {
    public static class Program {
        static void Main(string[] args) {
            //var key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\MyProgram\");
            var key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\");
            if (key != null)
                foreach (var keyName in key.GetSubKeyNames()) {
                    //if (keyName.StartsWith("PROG7"))
                    if (keyName.StartsWith("Mic"))
                        Console.WriteLine(keyName);
                }
            Console.ReadKey();

            /* Outputs:
             * 
             * Microsoft
             * Microsoft Corporation
             * 
             */
        }
    }
}

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