通过

MessageQueuePermissionAccess 枚举

  • 参考

定义

命名空间:
System.Messaging
程序集:
System.Messaging.dll

定义 System.Messaging 权限类使用的访问级别。

此枚举支持其成员值的按位组合。

public enum class MessageQueuePermissionAccess
[System.Flags]
public enum MessageQueuePermissionAccess
[System.Flags]
[System.Serializable]
public enum MessageQueuePermissionAccess
[<System.Flags>]
type MessageQueuePermissionAccess = 
[<System.Flags>]
[<System.Serializable>]
type MessageQueuePermissionAccess = 
Public Enum MessageQueuePermissionAccess
继承
Object
ValueType
Enum
MessageQueuePermissionAccess
属性
FlagsAttribute SerializableAttribute

字段

Administer 62

MessageQueue 可以查看可用的队列、读取队列中的消息并发送和接收消息。
Browse 2

MessageQueue 可以查看可用的队列。
None 0

MessageQueue 没有权限。
Peek 10

MessageQueue 可以查看可用的队列并读取队列中的消息。
Receive 26

MessageQueue 可以查看可用的队列、读取队列中的消息并接收消息。
Send 6

MessageQueue 可以查看可用的队列并发送消息。

示例

下面的代码示例在创建新实例MessageQueuePermission时使用 MessageQueuePermissionAccess 。


#using <System.dll>
#using <System.Messaging.dll>

using namespace System;
using namespace System::Messaging;

// Creates a new queue.
void CreateQueue(String^ queuePath, bool transactional)
{
    if (!MessageQueue::Exists(queuePath))
    {
        MessageQueue^ queue = MessageQueue::Create(queuePath, transactional);
        queue->Close();       
    }
    else
    {
        Console::WriteLine("{0} already exists.",queuePath);
    }
}

// Demonstrates the use of MessageQueuePermissionAccess
void CreatePermission()
{
    // Connect to a queue on the local computer.
    MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

    // Create a new instance of MessageQueuePermission.
    MessageQueuePermission^ permission = gcnew MessageQueuePermission(
        MessageQueuePermissionAccess::Receive, queue->MachineName,
        queue->Label, queue->Category.ToString());

    queue->Close();
}

int main()
{
    try
    {

        // Create a non-transactional queue on the local computer.
        CreateQueue(".\\exampleQueue", false);

        // Demonstrate use of MessageQueuePermissionAccess.
        CreatePermission();
    }

    catch (InvalidOperationException^)
    {
        Console::WriteLine("Please install Message Queuing.");
    }

    catch (MessageQueueException^ ex)
    {
        Console::WriteLine(ex->Message);
    }
}

using System;
using System.Messaging;

public class MessageQueuePermissionAccessExample
{
    public static void Main()
    {
        // Create a new instance of the class.
        MessageQueuePermissionAccessExample example =
            new MessageQueuePermissionAccessExample();

        // Create a non-transactional queue on the local computer.
        CreateQueue(".\\exampleQueue", false);

        // Demonstrate use of MessageQueuePermissionAccess.
        example.CreatePermission();
    }

    // Creates a new queue.
    public static void CreateQueue(string queuePath, bool transactional)
    {
        if(!MessageQueue.Exists(queuePath))
        {
            MessageQueue.Create(queuePath, transactional);
        }
        else
        {
            Console.WriteLine(queuePath + " already exists.");
        }
    }

    // Demonstrates the use of MessageQueuePermissionAccess
    public void CreatePermission()
    {
        // Connect to a queue on the local computer.
        MessageQueue queue = new MessageQueue(".\\exampleQueue");
    string machineName = queue.MachineName;
    string label = queue.Label;
        string category = queue.Category.ToString();
        // Create a new instance of MessageQueuePermission.
        MessageQueuePermission permission = new MessageQueuePermission(
            MessageQueuePermissionAccess.Receive,
            machineName,
            label,
            category);
    }
}

适用于

另请参阅