RegistryAccessPolicy.AllowOperation(RegistryOperation) Method

Enables the specified registry operation.

Namespace: DevExpress.Data.Utils

Assembly: DevExpress.Data.Desktop.v25.1.dll

NuGet Packages: DevExpress.Data.Desktop, DevExpress.ExpressApp.Win.Design

Declaration

C#

public static void AllowOperation(
    RegistryOperation operation
)

VB.NET

Public Shared Sub AllowOperation(
    operation As RegistryOperation
)

Parameters

Name	Type	Description
operation	DevExpress.Data.Utils.Registry.Internal.RegistryOperation	The registry operation.

Remarks

Use the AllowOperation method to enable a specific registry operation when a restrictive policy is activated.

Registry operations include:

• RegistryOperation.QueryValue
• RegistryOperation.SetValue
• RegistryOperation.DeleteSubKeyTree
• RegistryOperation.EnumerateSubKeyTree
• RegistryOperation.All
• RegistryOperation.None

The following example suppresses all registry-related operations except for read requests from the system registry:

C#

using System;
using System.Windows.Forms;
using DevExpress.Data.Utils;
using DevExpress.Data.Utils.Registry.Internal;

namespace DXApplication {
    internal static class Program {
        [STAThread]
        static void Main() {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            RegistryAccessPolicy.SuppressAllOperations();
            RegistryAccessPolicy.AllowOperation(RegistryOperation.EnumerateSubKeyTree);
            RegistryAccessPolicy.AllowOperation(RegistryOperation.QueryValue);
            Application.Run(new Form1());
        }
    }
}

VB.NET

using System;
using System.Windows.Forms;
using DevExpress.Data.Utils;
using DevExpress.Data.Utils.Registry.Internal;

namespace DXApplication {
    internal static class Program {
        [STAThread]
        static void Main() {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            RegistryAccessPolicy.SuppressAllOperations();
            RegistryAccessPolicy.AllowOperation(RegistryOperation.EnumerateSubKeyTree);
            RegistryAccessPolicy.AllowOperation(RegistryOperation.QueryValue);
            Application.Run(new Form1());
        }
    }
}

Tip

Use the IsOperationAllowed method to check whether the specified registry operation is allowed.

Read the following topic for additional information: Registry Access Policy.