RegistryValueOptions Enumeration
.NET Framework 3.0
Specifies optional behavior when retrieving name/value pairs from a registry key.
Assembly: mscorlib (in mscorlib.dll)
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Namespace: Microsoft.Win32Assembly: mscorlib (in mscorlib.dll)
Use the DoNotExpandEnvironmentNames flag with the RegistryKey.GetValue(String,Object,RegistryValueOptions) method overload.
The following code sample creates a test key, adds a value with an embedded environment variable, and retrieves the value in both expanded and unexpanded forms.
Imports System Imports Microsoft.Win32 Imports Microsoft.VisualBasic Public Class Example Public Shared Sub Main() ' Delete and recreate the test key. Registry.CurrentUser.DeleteSubKey("RegistryValueOptionsExample", False) Dim rk As RegistryKey = _ Registry.CurrentUser.CreateSubKey("RegistryValueOptionsExample") ' Add a value that contains an environment variable. rk.SetValue("ExpandValue", "The path is %PATH%", _ RegistryValueKind.ExpandString) ' Retrieve the value, first without expanding the environment ' variable and then expanding it. Console.WriteLine("Unexpanded: ""{0}""", _ rk.GetValue("ExpandValue", "No Value", _ RegistryValueOptions.DoNotExpandEnvironmentNames)) Console.WriteLine("Expanded: ""{0}""", rk.GetValue("ExpandValue")) End Sub 'Main End Class 'Example
import System.*;
import Microsoft.Win32.*;
import Microsoft.VisualBasic.*;
public class Example
{
public static void main(String args[])
{
// Delete and recreate the test key.
Registry.CurrentUser.DeleteSubKey("RegistryValueOptionsExample", false);
RegistryKey rk = Registry.CurrentUser.CreateSubKey(
"RegistryValueOptionsExample");
// Add a value that contains an environment variable.
rk.SetValue("ExpandValue", "The path is %PATH%",
RegistryValueKind.ExpandString);
// Retrieve the value, first without expanding the environment
// variable and then expanding it.
Console.WriteLine("Unexpanded: \"{0}\"", rk.GetValue("ExpandValue",
"No Value", RegistryValueOptions.DoNotExpandEnvironmentNames));
Console.WriteLine("Expanded: \"{0}\"", rk.GetValue("ExpandValue"));
} //main
} //Example
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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