Registry Key exists?

[croydon]

Is there a way to determine whether a specific registry key exists?

I want to check whether the key exists, and if not create it.

Thanks.

 

[TipGiver]

have a look in Microsoft.Win32.RegistryKey

 

[croydon]

I am already using Microsoft.Win32.RegistryKey to read the registry values.

You can obviously create and delete the key here but there seems no way to check whether it already exists.

 

[onpnt]

You can either create and object and test it for "Is Nothing" or more common in your catch handling grab the ArgumentException.

Dim key As Object = Registry.LocalMachine.OpenSubKey("RegistryRightsExample", True)
If key Is Nothing Then
   MsgBox("does not exist")
End If

or

        Try
            Registry.LocalMachine.DeleteSubKey("RegistryRightsExample")
            
        Catch ex As ArgumentException
            MsgBox("does not exist")
        Catch ex As Exception
            MsgBox("Unable to delete the example key: {0}")
            Return
        End Try

Note:TipGiver was on the ball. I knew nothing of this until reading briefly up on it @

http://msdn2.microsoft.com/en-us/library/microsoft.win32.registrykey.setaccesscontrol.aspx

Future reference try that first

General FAQ faq333-2924
5 steps to asking a question faq333-3811

 

[croydon]

Thanks. I'll try your examples.