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Класс PropertyCollection

  • Статья

Gets a read-only collection of Property objects contained by a CellSet.

Иерархия наследования

System.Object
  Microsoft.AnalysisServices.AdomdClient.PropertyCollection

Пространство имен:  Microsoft.AnalysisServices.AdomdClient
Сборка:  Microsoft.AnalysisServices.AdomdClient (в Microsoft.AnalysisServices.AdomdClient.dll)

Синтаксис

'Декларация
Public NotInheritable Class PropertyCollection _
    Implements ICollection, IEnumerable
'Применение
Dim instance As PropertyCollection

public sealed class PropertyCollection : ICollection, 
    IEnumerable

public ref class PropertyCollection sealed : ICollection, 
    IEnumerable

[<SealedAttribute>]
type PropertyCollection =  
    class 
        interface ICollection 
        interface IEnumerable 
    end

public final class PropertyCollection implements ICollection, IEnumerable

Тип PropertyCollection обеспечивает доступ к следующим элементам.

Свойства

  Имя Описание
Открытое свойство Count Gets the number of Property objects in the collection.
Открытое свойство IsSynchronized Gets a value indicating whether access to the collection is synchronized (thread safe).
Открытое свойство Item[Int32] Gets the specified Property from the PropertyCollection collection by its index. In Microsoft Visual C#, this property is the indexer for the PropertyCollection class.
Открытое свойство Item[String] Gets the specified Property from the PropertyCollection collection by its name. In Microsoft Visual C#, this property is the indexer for the PropertyCollection class.
Открытое свойство SyncRoot Gets an object that can be used to synchronize access to the PropertyCollection collection.

В начало

Методы

  Имя Описание
Открытый метод CopyTo Copies the elements of the PropertyCollection collection to the specified array.
Открытый метод Equals (Производный от Object.)
Открытый метод Find Gets the specified Property from the PropertyCollection collection by its name.
Открытый метод GetEnumerator Gets an Enumerator for iterating through the PropertyCollection collection.
Открытый метод GetHashCode (Производный от Object.)
Открытый метод GetType (Производный от Object.)
Открытый метод ToString (Производный от Object.)

В начало

Явные реализации интерфейса

  Имя Описание
Явная реализация интерфейсаЗакрытый метод ICollection.CopyTo Copies the elements of the PropertyCollection to the specified array, starting at a particular array index.
Явная реализация интерфейсаЗакрытый метод IEnumerable.GetEnumerator Gets an enumerator that iterates through the PropertyCollection.

В начало

Замечания

The PropertyCollection is used by a CellSet to represent the axes returned by a query. Each Property contained by an PropertyCollection represents a set of congruent tuples organized along one or more hierarchies.

ПримечаниеПримечание

The filter Property is not contained in this collection. To access the filter Property, you must reference the OlapInfo.AxesInfo.FilterAxes property of the CellSet.

Примеры

The following subroutine, given a CellSet, iterates through the PropertyCollection (represented by the Axes property of the CellSet) and displays information for each Property.

Public Sub ListAxes(ByRef cellsetToCheck As CellSet)

    ' Check the parameter before performing actions on it.
    If cellsetToCheck Is Nothing Then
        Throw New System.ArgumentNullException("cellsetToCheck")
    Else
        ' Iterate through the axes of the
        ' CellSet object. The Axes property of the 
        ' CellSet object returns a reference to the
        ' PropertyCollection object.

        Try
            Dim PropertyToCheck As Property

            Debug.WriteLine("Found " & cellsetToCheck.Axes.Count & _
                " axes in cellset:")

            For Each PropertyToCheck In cellsetToCheck.Axes

                Debug.WriteLine("  Name:  " & _
                    PropertyToCheck.Name)
            Next
        Catch ex As AdomdConnectionException
            ' The connection could not be opened or was disconnected.
            ' This error can occur at any time, if the provider is 
            ' disconnected from the server.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdErrorResponseException
            ' A response is received from a provider which indicates an error.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdUnknownResponseException
            ' A response has been returned from the provider that 
            ' was not understood.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdCacheExpiredException
            ' A cached version of an ADOMD.NET object is no longer valid.
            ' This error is typically raised when reviewing metadata.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As AdomdException
            ' Any other error raised by ADOMD.NET.
            Debug.WriteLine(ex)
            Throw ex
        Catch ex As Exception
            ' Any other error.
            Debug.WriteLine(ex)
            Throw ex
        End Try
    End If
End Sub

Безопасность многопоточности

Любые открытые статический (Shared в Visual Basic) элементы этого типа потокобезопасны. Потокобезопасность с элементами экземпляров не гарантируется.

См. также

Справочник

Пространство имен Microsoft.AnalysisServices.AdomdClient