ForEachEnumeratorHost.CollectionEnumerator Properti

Definisi

Ruang nama:

Microsoft.SqlServer.Dts.Runtime

Rakitan:

Microsoft.SqlServer.ManagedDTS.dll

Mendapatkan atau menetapkan Boolean yang menunjukkan apakah enumerator hosting menghitung koleksi objek atau menghitung koleksi koleksi.

public:
 property bool CollectionEnumerator { bool get(); void set(bool value); };

public bool CollectionEnumerator { get; set; }

member this.CollectionEnumerator : bool with get, set

Public Property CollectionEnumerator As Boolean

Nilai Properti

Boolean

Boolean yang menunjukkan apa yang diulangi oleh enumerator.

Penerapan

CollectionEnumerator

Contoh

Contoh kode berikut membuat ForEachEnumeratorHost untuk menahan ForEachSMOEnumerator enumerator, dan menampilkan properti host.

using System;  
using System.Collections.Generic;  
using System.Text;  
using Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO;  
using Microsoft.SqlServer.Dts.Runtime;  

namespace Microsoft.SqlServer.SSIS.Sample  
{  
    internal class EnumType  
    {  
        public const string SMOEnum = "Foreach SMO Enumerator";  
    }  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Application app = new Application();  
            ForEachEnumeratorInfos infos = app.ForEachEnumeratorInfos;  
            ForEachEnumeratorInfo info = null;  

            foreach (ForEachEnumeratorInfo enumInfo in infos)  
            {  
                Console.Write("Available enumerators: {0}\n", enumInfo.Name);  
                if (enumInfo.Name == EnumType.SMOEnum)  
                {  
                    // Set the ForEachEnumeratorInfo variable  
                    // to the SMo enumerator, and use it   
                    // later in the CreateNew method.  
                    info = enumInfo;  
                }  
        }  
            ForEachEnumeratorHost enumH = info.CreateNew();  
            Console.WriteLine();  
            Console.WriteLine("Host InnerObject: " + enumH.InnerObject.ToString());  
            Console.WriteLine("CollectionEnumerator? {0}", enumH.CollectionEnumerator);  
            Console.WriteLine("CreationName: {0}",  enumH.CreationName);  
            Console.WriteLine("Description:  {0}", enumH.Description);  
            Console.WriteLine("Value of DelayValidation: {0}", enumH.DelayValidation);  
            Console.WriteLine("HostType:    {0}", enumH.HostType);  
            Console.WriteLine("ID:          {0}", enumH.ID);  
            Console.WriteLine("Name:        {0}", enumH.Name);  
        }  
    }  
}  

Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO  
Imports Microsoft.SqlServer.Dts.Runtime  

Namespace Microsoft.SqlServer.SSIS.Sample  
    Friend Class EnumType  
        Public const String SMOEnum = "Foreach SMO Enumerator"  
    End Class  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim app As Application =  New Application()   
            Dim infos As ForEachEnumeratorInfos =  app.ForEachEnumeratorInfos   
            Dim info As ForEachEnumeratorInfo =  Nothing   

            Dim enumInfo As ForEachEnumeratorInfo  
            For Each enumInfo In infos  
                Console.Write("Available enumerators: {0}\n", enumInfo.Name)  
                If enumInfo.Name = EnumType.SMOEnum Then  
                    ' Set the ForEachEnumeratorInfo variable  
                    ' to the SMo enumerator, and use it   
                    ' later in the CreateNew method.  
                    info = enumInfo  
                End If  
            Next  
            Dim enumH As ForEachEnumeratorHost =  info.CreateNew()   
            Console.WriteLine()  
            Console.WriteLine("Host InnerObject: " + enumH.InnerObject.ToString())  
            Console.WriteLine("CollectionEnumerator? {0}", enumH.CollectionEnumerator)  
            Console.WriteLine("CreationName: {0}",  enumH.CreationName)  
            Console.WriteLine("Description:  {0}", enumH.Description)  
            Console.WriteLine("Value of DelayValidation: {0}", enumH.DelayValidation)  
            Console.WriteLine("HostType:    {0}", enumH.HostType)  
            Console.WriteLine("ID:          {0}", enumH.ID)  
            Console.WriteLine("Name:        {0}", enumH.Name)  
        End Sub  
    End Class  
End Namespace  

Contoh Output:

Enumerator yang tersedia: Enumerator File Foreach

Enumerator yang tersedia: Enumerator Item Foreach

Enumerator yang tersedia: Foreach ADO Enumerator

Enumerator yang tersedia: Foreach ADO.NET Enumerator Kumpulan Baris Skema

Enumerator yang tersedia: Foreach Dari Enumerator Variabel

Enumerator yang tersedia: Foreach NodeList Enumerator

Enumerator yang tersedia: Foreach SMO Enumerator

Host InnerObject: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO.ForEachSMOEnumerator

CollectionEnumerator? FALSE

CreationName: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO.ForEachSMOEnumerator, Microsoft.SqlServer.ForEachSMOEnumerator, Version=10.0.000.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91

Deskripsi:

Nilai DelayValidation: False

HostType: ForEachEnumerator

ID: {C91BA4D0-6AD4-4BEE-A7C4-9A737880773E}

Nama: {C91BA4D0-6AD4-4BEE-A7C4-9A737880773E}

Keterangan

true menunjukkan bahwa enumerator melakukan iterasi pada kumpulan koleksi. Jika false, enumerator melakukan iterasi atas kumpulan objek.