RegistryPermission.AddPathList Method

Definition

Namespace:

System.Security.Permissions

Assembly:

System.Security.Permissions.dll

Adds access for the specified registry variables to the existing state of the permission.

Overloads

AddPathList(RegistryPermissionAccess, String)	Adds access for the specified registry variables to the existing state of the permission.
AddPathList(RegistryPermissionAccess, AccessControlActions, String)	Adds access for the specified registry variables to the existing state of the permission, specifying registry permission access and access control actions.

Remarks

Use this method to modify access to registry variables by adding the set of their paths to the state of the current permission object.

AddPathList(RegistryPermissionAccess, String)

Adds access for the specified registry variables to the existing state of the permission.

public:
 void AddPathList(System::Security::Permissions::RegistryPermissionAccess access, System::String ^ pathList);

public void AddPathList (System.Security.Permissions.RegistryPermissionAccess access, string pathList);

member this.AddPathList : System.Security.Permissions.RegistryPermissionAccess * string -> unit

Public Sub AddPathList (access As RegistryPermissionAccess, pathList As String)

Parameters

access

RegistryPermissionAccess

One of the RegistryPermissionAccess values.

pathList

String

A list of registry variables (semicolon-separated).

Exceptions

ArgumentException

The access parameter is not a valid value of RegistryPermissionAccess.

-or-

The pathList parameter is not a valid string.

Examples

The following code example shows the use of the AddPathList(RegistryPermissionAccess, String) method.

// AddPathList adds access for the specified registry variables to the existing state of the permission.
// SetPathList sets new access for the specified registry variable names to the existing state of the permission.
// GetPathList gets paths for all registry variables with the specified RegistryPermissionAccess.
private static bool SetGetPathListDemo()
{
    try
    {
        Console.WriteLine("********************************************************\n");
        RegistryPermission readPerm1;
        Console.WriteLine("Creating RegistryPermission with AllAccess rights for 'HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0'");
        readPerm1 = new RegistryPermission(RegistryPermissionAccess.AllAccess, "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0");
        Console.WriteLine("Adding 'HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION' to the write access list, "
            + "and \n 'HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\FloatingPointProcessor\\0' "
            + "to the read access list.");
        readPerm1.AddPathList(RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION");
        readPerm1.AddPathList(RegistryPermissionAccess.Read,
            "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\FloatingPointProcessor\\0");
        Console.WriteLine("Read access list before SetPathList = " +
            readPerm1.GetPathList(RegistryPermissionAccess.Read));
        Console.WriteLine("Setting read access rights to \n'HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0'");
        readPerm1.SetPathList(RegistryPermissionAccess.Read,
            "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0");
        Console.WriteLine("Read access list after SetPathList = \n" +
            readPerm1.GetPathList(RegistryPermissionAccess.Read));
        Console.WriteLine("Write access = \n" +
            readPerm1.GetPathList(RegistryPermissionAccess.Write));
        Console.WriteLine("Write access Registry variables = \n" +
            readPerm1.GetPathList(RegistryPermissionAccess.AllAccess));
    }
    catch (ArgumentException e)
    {
        // RegistryPermissionAccess.AllAccess can not be used as a parameter for GetPathList.
        Console.WriteLine("An ArgumentException occurred as a result of using AllAccess. "
            + "AllAccess cannot be used as a parameter in GetPathList because it represents more than one "
            + "type of registry variable access : \n" + e);
    }

    return true;
}

' AddPathList adds access for the specified registry variables to the existing state of the permission.
' SetPathList sets new access for the specified registry variable names to the existing state of the permission.
' GetPathList gets paths for all registry variables with the specified RegistryPermissionAccess.
Private Shared Function SetGetPathListDemo() As Boolean
    Try
        Console.WriteLine("********************************************************" + vbLf)
        Dim readPerm1 As RegistryPermission
        Console.WriteLine("Creating RegistryPermission with AllAccess rights for 'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0'")
        readPerm1 = New RegistryPermission(RegistryPermissionAccess.AllAccess, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0")
        Console.WriteLine("Adding 'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION' to the write access list, " + "and " + vbLf + " 'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0' " + "to the read access list.")
        readPerm1.AddPathList(RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION")
        readPerm1.AddPathList(RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0")
        Console.WriteLine("Read access list before SetPathList = " + readPerm1.GetPathList(RegistryPermissionAccess.Read))
        Console.WriteLine("Setting read access rights to " + vbLf + "'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0'")
        readPerm1.SetPathList(RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0")
        Console.WriteLine("Read access list after SetPathList = " + vbLf + readPerm1.GetPathList(RegistryPermissionAccess.Read))
        Console.WriteLine("Write access = " + vbLf + readPerm1.GetPathList(RegistryPermissionAccess.Write))
        Console.WriteLine("Write access Registry variables = " + vbLf + readPerm1.GetPathList(RegistryPermissionAccess.AllAccess))
    Catch e As ArgumentException
        ' RegistryPermissionAccess.AllAccess can not be used as a parameter for GetPathList.
        Console.WriteLine("An ArgumentException occurred as a result of using AllAccess. " + _
        "AllAccess cannot be used as a parameter in GetPathList because it represents more than one " + _
        "type of registry variable access : " + vbLf + e.Message)
    End Try

    Return True

End Function 'SetGetPathListDemo

Remarks

Use this method to modify access to registry variables by adding to the state of the current permission object.

AddPathList(RegistryPermissionAccess, AccessControlActions, String)

Adds access for the specified registry variables to the existing state of the permission, specifying registry permission access and access control actions.

public:
 void AddPathList(System::Security::Permissions::RegistryPermissionAccess access, System::Security::AccessControl::AccessControlActions actions, System::String ^ pathList);

public void AddPathList (System.Security.Permissions.RegistryPermissionAccess access, System.Security.AccessControl.AccessControlActions actions, string pathList);

member this.AddPathList : System.Security.Permissions.RegistryPermissionAccess * System.Security.AccessControl.AccessControlActions * string -> unit

Public Sub AddPathList (access As RegistryPermissionAccess, actions As AccessControlActions, pathList As String)

Parameters

access

RegistryPermissionAccess

One of the RegistryPermissionAccess values.

actions

AccessControlActions

One of the AccessControlActions values.

pathList

String

A list of registry variables (separated by semicolons).

Exceptions

ArgumentException

The access parameter is not a valid value of RegistryPermissionAccess.

-or-

The pathList parameter is not a valid string.

Remarks

Use this method to modify access to registry variables by adding the set of their paths to the state of the current permission object. This overload allows you to specify the access control action as will as the registry permission access.

The control parameter specifies whether the access control list (ACL) for the registry keys specified by pathList can be changed, viewed, or cannot be accessed.

Important

An access control list (ACL) describes individuals or groups who have, or do not have, rights to specific actions on the specified registry keys. The ability to change or view an ACL is an important permission and should be granted with caution.