MemberCollection 类

Gets a read-only, on-demand collection of Member objects contained by a Position, a Level, or a Tuple.

继承层次结构

System.Object
  Microsoft.AnalysisServices.AdomdClient.MemberCollection

命名空间：  Microsoft.AnalysisServices.AdomdClient
程序集：  Microsoft.AnalysisServices.AdomdClient（在 Microsoft.AnalysisServices.AdomdClient.dll 中）

语法

声明
Public NotInheritable Class MemberCollection _
    Implements ICollection, IEnumerable
用法
Dim instance As MemberCollection

public sealed class MemberCollection : ICollection, 
    IEnumerable

public ref class MemberCollection sealed : ICollection, 
    IEnumerable

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

public final class MemberCollection implements ICollection, IEnumerable

MemberCollection 类型公开以下成员。

属性

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

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方法

	名称	说明
	CopyTo	Copies the elements of the collection to the specified array.
	Equals	（从 Object 继承。）
	Find	Returns the specified Member from the collection by its name.
	GetEnumerator	Gets an Enumerator for iterating through the collection.
	GetHashCode	（从 Object 继承。）
	GetType	（从 Object 继承。）
	ToString	（从 Object 继承。）

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显式接口实现

	名称	说明
	ICollection.CopyTo	Copies the elements of the MemberCollection to the destination array, starting at a particular array index.
	IEnumerable.GetEnumerator	Gets the enumerator that iterates through the MemberCollection.

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注释

Although the MemberCollection externally represents a collection of Member objects, the collection is internally loaded and managed in one of two ways, depending on the parent of the collection:

• If the parent object was referenced as a result of a query, as in the case of a Tuple, the collection represents the members referenced by that query.

• If the parent object was referenced as a result of a request for metadata, the collection represents the members referenced by the definition of the parent object.

示例

The following subroutine, given a Level, iterates through the MemberCollection and displays information for each member.

Public Overloads Sub ListMembers(ByRef LevelToCheck As Level)

    ' Check the parameter before performing actions on it.
    If LevelToCheck Is Nothing Then
        Throw New System.ArgumentNullException("LevelToCheck")
    Else
        ' Iterate through the Members collection of the
        ' Level object.

        Try
            Dim memberToCheck As Member

            Debug.WriteLine("Found " & LevelToCheck.GetMembers().Count& _
                " member(s) in level:")

            For Each memberToCheck In LevelToCheck.GetMembers()
                Debug.WriteLine("Member:  " & memberToCheck.Name)
                Debug.WriteLine("  Caption:          " & _
                    memberToCheck.Caption)
                Debug.WriteLine("  UniqueName:       " & _
                    memberToCheck.UniqueName)

                ' Note that the Children property loads a collection
                ' of Member objects on demand and
                ' therefore, slows performance when first
                ' referenced--you should instead use the 
                ' ChildCount property.
                Debug.WriteLine("  No. of children:  " & _
                    memberToCheck.ChildCount)
            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

线程安全

此类型的任何公共 static（在 Visual Basic 中为 Shared） 成员都是线程安全的。不保证所有实例成员都是线程安全的。

请参阅

参考

Microsoft.AnalysisServices.AdomdClient 命名空间