EventWaitHandleSecurity.RemoveAccessRule(EventWaitHandleAccessRule) 메서드

public:
 bool RemoveAccessRule(System::Security::AccessControl::EventWaitHandleAccessRule ^ rule);

public bool RemoveAccessRule (System.Security.AccessControl.EventWaitHandleAccessRule rule);

override this.RemoveAccessRule : System.Security.AccessControl.EventWaitHandleAccessRule -> bool

Public Function RemoveAccessRule (rule As EventWaitHandleAccessRule) As Boolean

매개 변수

반환

호환 가능한 규칙이 있으면 true이고, 그렇지 않으면 false입니다.

예외

예제

다음 코드 예제를 사용 하는 방법을 보여 줍니다는 개체의 RemoveAccessRule 규칙 EventWaitHandleSecurity 에서 Allow 권한을 제거 하는 방법입니다. 또한 의 rule 다른 권한은 무시됨을 보여 집니다.

이 예제에서는 개체를 EventWaitHandleSecurity 만들고 현재 사용자에 대한 다양한 권한을 허용하고 거부하는 규칙을 추가합니다. 허용되는 권한에는 , 및 가 포함됩니다ModifySynchronize. ReadPermissions 그런 다음, 및 권한을 포함하여 ReadPermissionsTakeOwnership 현재 사용자에 대한 새 규칙을 만들고 메서드와 함께 RemoveAccessRule 해당 규칙을 사용하여 개체의 Allow 규칙 EventWaitHandleSecurity 에서 제거 ReadPermissions 합니다. 의 rule 오른쪽은 TakeOwnership 무시됩니다.

using System;
using System.Threading;
using System.Security.AccessControl;
using System.Security.Principal;

public class Example
{
    public static void Main()
    {
        // Create a string representing the current user.
        string user = Environment.UserDomainName + "\\" + 
            Environment.UserName;

        // Create a security object that grants no access.
        EventWaitHandleSecurity mSec = new EventWaitHandleSecurity();

        // Add a rule that grants the current user the 
        // right to wait on or signal the event and read the
        // permissions on the event.
        EventWaitHandleAccessRule rule = new EventWaitHandleAccessRule(user, 
            EventWaitHandleRights.Synchronize | EventWaitHandleRights.Modify
                | EventWaitHandleRights.ReadPermissions, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        // Add a rule that denies the current user the 
        // right to change permissions on the event.
        rule = new EventWaitHandleAccessRule(user, 
            EventWaitHandleRights.ChangePermissions, 
            AccessControlType.Deny);
        mSec.AddAccessRule(rule);

        // Display the rules in the security object.
        ShowSecurity(mSec);

        // Create a rule that grants the current user 
        // the right to read permissions on the event, and
        // take ownership of the event. Use this rule to 
        // remove the right to read permissions from the 
        // Allow rule for the current user. The inclusion 
        // of the right to take ownership has no effect.
        rule = new EventWaitHandleAccessRule(user, 
            EventWaitHandleRights.TakeOwnership | 
                EventWaitHandleRights.ReadPermissions, 
            AccessControlType.Allow);
        mSec.RemoveAccessRule(rule);

        ShowSecurity(mSec);
    }

    private static void ShowSecurity(EventWaitHandleSecurity security)
    {
        Console.WriteLine("\r\nCurrent access rules:\r\n");

        foreach(EventWaitHandleAccessRule ar in 
            security.GetAccessRules(true, true, typeof(NTAccount)))
        {
            Console.WriteLine("        User: {0}", ar.IdentityReference);
            Console.WriteLine("        Type: {0}", ar.AccessControlType);
            Console.WriteLine("      Rights: {0}", ar.EventWaitHandleRights);
            Console.WriteLine();
        }
    }
}

/*This code example produces output similar to following:

Current access rules:

        User: TestDomain\TestUser
        Type: Deny
      Rights: ChangePermissions

        User: TestDomain\TestUser
        Type: Allow
      Rights: Modify, ReadPermissions, Synchronize


Current access rules:

        User: TestDomain\TestUser
        Type: Deny
      Rights: ChangePermissions

        User: TestDomain\TestUser
        Type: Allow
      Rights: Modify, Synchronize
 */

Imports System.Threading
Imports System.Security.AccessControl
Imports System.Security.Principal

Public Class Example

    Public Shared Sub Main()

        ' Create a string representing the current user.
        Dim user As String = Environment.UserDomainName _ 
            & "\" & Environment.UserName

        ' Create a security object that grants no access.
        Dim mSec As New EventWaitHandleSecurity()

        ' Add a rule that grants the current user the 
        ' right to wait on or signal the event, and to 
        ' read its permissions.
        Dim rule As New EventWaitHandleAccessRule(user, _
            EventWaitHandleRights.Synchronize _
            Or EventWaitHandleRights.Modify _
            Or EventWaitHandleRights.ReadPermissions, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ' Add a rule that denies the current user the 
        ' right to change permissions on the event.
        rule = New EventWaitHandleAccessRule(user, _
            EventWaitHandleRights.ChangePermissions, _
            AccessControlType.Deny)
        mSec.AddAccessRule(rule)

        ' Display the rules in the security object.
        ShowSecurity(mSec)

        ' Create a rule that grants the current user 
        ' the right to read permissions on the event, and
        ' take ownership of the event. Use this rule to 
        ' remove the right to read permissions from the 
        ' Allow rule for the current user. The inclusion 
        ' of the right to take ownership has no effect.
        rule = New EventWaitHandleAccessRule(user, _
            EventWaitHandleRights.TakeOwnership _
            Or EventWaitHandleRights.ReadPermissions, _
            AccessControlType.Allow)
        mSec.RemoveAccessRule(rule)

        ShowSecurity(mSec)
        
    End Sub 

    Private Shared Sub ShowSecurity(ByVal security As EventWaitHandleSecurity)
        Console.WriteLine(vbCrLf & "Current access rules:" & vbCrLf)

        For Each ar As EventWaitHandleAccessRule In _
            security.GetAccessRules(True, True, GetType(NTAccount))

            Console.WriteLine("        User: {0}", ar.IdentityReference)
            Console.WriteLine("        Type: {0}", ar.AccessControlType)
            Console.WriteLine("      Rights: {0}", ar.EventWaitHandleRights)
            Console.WriteLine()
        Next

    End Sub
End Class 

'This code example produces output similar to following:
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Deny
'      Rights: ChangePermissions
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: Modify, ReadPermissions, Synchronize
'
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Deny
'      Rights: ChangePermissions
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: Modify, Synchronize

설명

현재 EventWaitHandleSecurity 는 사용자와 AccessControlTyperule값이 같은 규칙을 검색합니다. 이러한 규칙을 찾을 수 없으면 아무 작업도 수행되지 않으며 메서드는 를 반환합니다 false. 일치하는 규칙이 발견되면 상속 및 호환성 플래그가 에 rule지정된 플래그와의 호환성을 확인합니다. 호환되는 규칙을 찾을 수 없으면 아무 작업도 수행되지 않으며 메서드는 를 반환합니다 false. 호환되는 플래그가 있는 규칙을 발견하면 에 rule 지정된 권한이 호환되는 규칙에서 제거되고 메서드는 를 반환합니다 true. 호환되는 규칙에 포함되지 않은 권한을 지정하는 경우 rule 해당 권한과 관련하여 아무런 조치도 취하지 않습니다. 호환되는 규칙에서 모든 권한이 제거되면 현재 EventWaitHandleSecurity 개체에서 전체 규칙이 제거됩니다.

적용 대상