Retrieve A Subkey Value From The Registry?
Feb 21, 2011
I'm trying to change my database connection string in my ASP site from being hardcoded. I'm trying to retrieve the informix database directory from the registry, but I get an error saying the following, when I execute the GetValue method.
Error: Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
using Microsoft.Win32;
RegistryKey myKey = Registry.LocalMachine;
myKey.OpenSubKey(@"SOFTWAREInformixEnvironment");
string informixDir = myKey.GetValue("INFORMIXDIR").ToString();
myKey.Close();
Path:My ComputerHKEY_LOCAL_MACHINESOFTWAREInformixEnvironment
Key: INFORMIXDIR
Value: C:informix
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