modifying the registry key value

Question

I have a registry path of the following

HKEY_LOCAL_MACHINE\SOFTWARE\COMPANY\COMPFOLDER

inside COMPFOLDER, I have a string value called "Deno" whose value is 0. I wish to change its value to 1 by code whenever I execute the code. Can anyone help me?

How did the value get in that registry key in the first place? I assume that you used the Microsoft.Win32.Registry class to write it, so you should use the same class to modify it. What problems did you have when you tried to do this? — Cody Gray
– Cody Gray ♦, Commented Jan 11, 2012 at 8:21
Use the Registry class as described here. msdn.microsoft.com/en-us/library/microsoft.win32.registry.aspx — agarcian
– agarcian, Commented Jan 11, 2012 at 8:23
I'd assume that he navigated to the registry, copied the path and is desirous of creating a program to make changes to it through code.. Just a guess but that's how I got here. I appreciate your answer Cody Gray. It answered my question in part. — iDevJunkie
– iDevJunkie, Commented Jan 15, 2015 at 7:22

Martin Schneider · Accepted Answer · 2024-11-27 10:21:40Z

68

It's been a while I did reg hacks, but something like this could work:

using RegistryKey myKey = Registry.LocalMachine.OpenSubKey(
    @"SOFTWARE\Company\Compfolder", true);
if (myKey != null)    {
    myKey.SetValue("Deno", "1", RegistryValueKind.String);
    myKey.Close();
}

edited Nov 27, 2024 at 10:21

Martin Schneider

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answered Jan 11, 2012 at 8:24

Jontatas

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2 Comments

Liam Over a year ago

myKey should be in a using statement. See the remarks for RegistryKey

MundoPeter Over a year ago

Since the key I had to modify started with HKCU, I replaced "Registry.LocalMachine." with "Registry.CurrentUser." and it worked all right. Thank you!

Yoshi Askharoun · Accepted Answer · 2021-04-25 06:14:44Z

24

using (RegistryKey key = regKeyRoot.OpenSubKey(KeyName, true)) // Must dispose key or use "using" keyword
{
    if (key != null)  // Must check for null key
    {
        key.SetValue(attribute, value);
    }
}

edited Apr 25, 2021 at 6:14

Yoshi Askharoun

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answered Jun 4, 2014 at 7:35

electricalbah

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