SharedPropertyGroupManager 类

定义

命名空间:

System.EnterpriseServices

程序集:

System.EnterpriseServices.dll

控制对共享属性组的访问。 此类不能被继承。

public ref class SharedPropertyGroupManager sealed : System::Collections::IEnumerable

[System.Runtime.InteropServices.ComVisible(false)]
public sealed class SharedPropertyGroupManager : System.Collections.IEnumerable

[<System.Runtime.InteropServices.ComVisible(false)>]
type SharedPropertyGroupManager = class
    interface IEnumerable

Public NotInheritable Class SharedPropertyGroupManager
Implements IEnumerable

继承

Object

SharedPropertyGroupManager

属性

ComVisibleAttribute

实现

IEnumerable

示例

以下示例演示如何使用 SharedPropertyGroupManager 创建和管理共享属性。

#using <System.EnterpriseServices.dll>

using namespace System;
using namespace System::EnterpriseServices;
using namespace System::Reflection;

[assembly:AssemblyKeyFile("..\\common\\key.snk")];
[assembly:ApplicationName("ReceiptNumberGenerator")];
[assembly:ApplicationActivation(ActivationOption::Library)];

public ref class ReceiptNumberGeneratorClass
{
public:

   // Generates a new receipt number based on the receipt number
   // stored by the Shared Property Manager (SPM)
   int GetNextReceiptNumber()
   {
      bool groupExists;
      bool propertyExists;
      int nextReceiptNumber = 0;
      PropertyLockMode lockMode = PropertyLockMode::SetGet;
      PropertyReleaseMode releaseMode = PropertyReleaseMode::Standard;
      
      // Create a shared property group manager.
      SharedPropertyGroupManager^ groupManager = gcnew SharedPropertyGroupManager;

      // Create a shared property group.
      SharedPropertyGroup^ group =
         groupManager->CreatePropertyGroup( "Receipts",  lockMode,  releaseMode,  groupExists );

      // Create a shared property.
      SharedProperty^ ReceiptNumber;
      ReceiptNumber = group->CreateProperty( "ReceiptNumber",  propertyExists );

      // Retrieve the value from shared property, and increment the shared 
      // property value.
      nextReceiptNumber =  safe_cast<int>(ReceiptNumber->Value);
      ReceiptNumber->Value = nextReceiptNumber + 1;

      // Return nextReceiptNumber
      return nextReceiptNumber;
   }
};

using System;
using System.EnterpriseServices;
using System.Reflection;

[assembly: ApplicationName("ReceiptNumberGenerator")]
[assembly: ApplicationActivation(ActivationOption.Library)]

public class ReceiptNumberGeneratorClass
{
    // Generates a new receipt number based on the receipt number
    // stored by the Shared Property Manager (SPM)
    public int GetNextReceiptNumber()
    {
        bool groupExists,propertyExists;
        int nextReceiptNumber = 0;
        PropertyLockMode lockMode = PropertyLockMode.SetGet;
        PropertyReleaseMode releaseMode = PropertyReleaseMode.Standard;

        // Create a shared property group manager.
        SharedPropertyGroupManager groupManager = new SharedPropertyGroupManager();
        // Create a shared property group.
        SharedPropertyGroup group = groupManager.CreatePropertyGroup("Receipts",
                                   ref lockMode, ref releaseMode, out groupExists);
        // Create a shared property.
        SharedProperty ReceiptNumber;
        ReceiptNumber = group.CreateProperty("ReceiptNumber",out propertyExists);
        // Retrieve the value from shared property, and increment the shared
        // property value.
        nextReceiptNumber = (int) ReceiptNumber.Value;
        ReceiptNumber.Value = nextReceiptNumber + 1;
        // Return nextReceiptNumber
        return nextReceiptNumber;
    }
}

Imports System.EnterpriseServices
Imports System.Reflection

<Assembly: ApplicationName("ReceiptNumberGenerator")> 
<Assembly: ApplicationActivation(ActivationOption.Library)> 
 

Public Class ReceiptNumberGeneratorClass
    
    ' Generates a new receipt number based on the receipt number
    ' stored by the Shared Property Manager (SPM)
    Public Function GetNextReceiptNumber() As Integer 
        Dim groupExists, propertyExists As Boolean
        Dim nextReceiptNumber As Integer = 0
        Dim lockMode As PropertyLockMode = PropertyLockMode.SetGet
        Dim releaseMode As PropertyReleaseMode = PropertyReleaseMode.Standard
        
        ' Create a shared property group manager.
        Dim groupManager As New SharedPropertyGroupManager()

        ' Create a shared property group.
        Dim group As SharedPropertyGroup = groupManager.CreatePropertyGroup("Receipts", lockMode, releaseMode, groupExists)
        ' Create a shared property.
        Dim ReceiptNumber As SharedProperty
        ReceiptNumber = group.CreateProperty("ReceiptNumber", propertyExists)

        ' Retrieve the value from shared property, and increment the shared 
        ' property value.
        nextReceiptNumber = Fix(ReceiptNumber.Value)
        ReceiptNumber.Value = nextReceiptNumber + 1

        ' Return nextReceiptNumber
        Return nextReceiptNumber
    
    End Function 'GetNextReceiptNumber

End Class

构造函数

SharedPropertyGroupManager()

初始化 SharedPropertyGroupManager 类的新实例。

方法

CreatePropertyGroup(String, PropertyLockMode, PropertyReleaseMode, Boolean)	通过给定的信息查找或创建属性组。
Equals(Object)	确定指定对象是否等于当前对象。 (继承自 Object)
GetEnumerator()	检索集合的枚举接口。
GetHashCode()	作为默认哈希函数。 (继承自 Object)
GetType()	获取当前实例的 Type。 (继承自 Object)
Group(String)	查找具有给定名称的属性组。
MemberwiseClone()	创建当前 Object 的浅表副本。 (继承自 Object)
ToString()	返回表示当前对象的字符串。 (继承自 Object)

扩展方法

Cast<TResult>(IEnumerable)	将 IEnumerable 的元素强制转换为指定的类型。
OfType<TResult>(IEnumerable)	根据指定类型筛选 IEnumerable 的元素。
AsParallel(IEnumerable)	启用查询的并行化。
AsQueryable(IEnumerable)	将 IEnumerable 转换为 IQueryable。