CODEWITHSUNDEEP
c#.netvisual-studioregistry
Vnuuk
Vnuuk

Reputation: 6527

Can't open registry subkey

Can't open registry subkey even if I try to open in both - x64 and x32 registry. I'm trying to get username of logged in visual studio user.

@"Software\Microsoft\VisualStudio\12.0\ConnectedUser\IdeUser\Cache"

Can't see IdeUser, but Cache returns NULL.

const string SubKey = @"Software\Microsoft\VisualStudio\12.0\ConnectedUser\IdeUser\Cache";
const string EmailAddressKeyName = "EmailAddress";
const string UserNameKeyName = "DisplayName";

RegistryKey localMachineRegistry64 = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64);
RegistryKey reg64 = localMachineRegistry64.OpenSubKey(SubKey, false);

if (reg64 != null)
{
    return reg64.GetValue(SubKey, true).ToString();
}

//Check the 32-bit registry for "HKEY_LOCAL_MACHINE\SOFTWARE" if not found in the 64-bit registry:
RegistryKey localMachineRegistry32 = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry32);
RegistryKey reg32 = localMachineRegistry32.OpenSubKey(SubKey, false);

if (reg32 != null)
{
    return reg32.GetValue(SubKey, true).ToString();
}

Upvotes: 2

Views: 1701

Answers (1)

DotNetHitMan
DotNetHitMan

Reputation: 951

I have tested you code and it works as I would expect (to a point). I can access the SubKey. *Note I am running VS as administrator. (right click on the VS exe and run as admin, I am also a local admin my dev machine, so I have un-restricted registry access).

However your code is a little interesting as your not actually accessing the values in the registry by calling GetValue(SubKey,true), in my example I altered accordingly. 

const string SubKey = @"Software\Microsoft\VisualStudio\12.0\ConnectedUser\IdeUser\Cache";
const string EmailAddressKeyName = "EmailAddress";
const string UserNameKeyName = "DisplayName";

RegistryKey localMachineRegistry64 = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64);
RegistryKey reg64 = localMachineRegistry64.OpenSubKey(SubKey, false);

if (reg64 != null)
{
    //******** This is just an example of getting the user name and email.
    //get user name and email from the selected sub key.
    var userName = reg64.GetValue(UserNameKeyName, String.Empty).ToString();
    var emailAddress = reg64.GetValue(EmailAddressKeyName, String.Empty).ToString();
    //return a bool and pass back the userName and email as out parms?
    return true;
}

Hope this helps.

EDIT -

If registry access continues to be an issue you can monitor registry access via ProcMon from sysinternals.

Upvotes: 1

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