ForEachSMOEnumerator.GetEnumerator Metodo

Definizione

Spazio dei nomi:: Microsoft.SqlServer.Dts.Runtime.Enumerators.SMO

Assembly:: Microsoft.SqlServer.ForEachSMOEnumerator.dll

Importante

Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.

Restituisce un'interfaccia IEnumerator che può iterare sull'oggetto ActiveX Data Objects (ADO).

public:
 override System::Object ^ GetEnumerator(Microsoft::SqlServer::Dts::Runtime::Connections ^ connections, Microsoft::SqlServer::Dts::Runtime::VariableDispenser ^ variableDispenser, Microsoft::SqlServer::Dts::Runtime::IDTSInfoEvents ^ events, Microsoft::SqlServer::Dts::Runtime::IDTSLogging ^ log);

public override object GetEnumerator(Microsoft.SqlServer.Dts.Runtime.Connections connections, Microsoft.SqlServer.Dts.Runtime.VariableDispenser variableDispenser, Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents events, Microsoft.SqlServer.Dts.Runtime.IDTSLogging log);

override this.GetEnumerator : Microsoft.SqlServer.Dts.Runtime.Connections * Microsoft.SqlServer.Dts.Runtime.VariableDispenser * Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents * Microsoft.SqlServer.Dts.Runtime.IDTSLogging -> obj

Public Overrides Function GetEnumerator (connections As Connections, variableDispenser As VariableDispenser, events As IDTSInfoEvents, log As IDTSLogging) As Object

Parametri

connections: Connections

Una raccolta di Connections usati dal compito.

variableDispenser: VariableDispenser

Un VariableDispenser oggetto per variabili di blocco.

events: IDTSInfoEvents

Oggetto che implementa l'interfaccia IDTSInfoEvents .

log: IDTSLogging

Oggetto che implementa l'interfaccia IDTSLogging .

Valori restituiti

Object

Oggetto .

Esempio

Il seguente esempio di codice crea un ForEachLoop, crea un enumeratore SMO e lo ospita in un ForEachEnumeratorHost, dove viene poi aggiunto come nel ForEachEnumerator ForEachLoop. Restituendo un ForEachSMOEnumerator, a SMOEnumerator viene creato come un System.Collections.IEnumerator e iterato usando MoveNext e Current. Dopo che la collezione ha superato la fine, il Reset viene usato per resettare l'iteratore.

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

namespace SMOEnumerator  
{  
    class Program  
    {  
        const string PACKAGEFILENAME = @"\SamplePackage.dtsx";  

        static void Main(string[] args)  
        {  
            // Create the SSIS application  
            Application application = new Application();  

            // Create the new package  
            Package package = new Package();  
            package.PackageType = DTSPackageType.DTSDesigner100;  
            package.Name = "SMOEnumerator Sample";  
            package.Description = "This is a sample for SMOEnumerator";  
            package.CreatorComputerName = @"MACHINENAME"; // System.Environment.MachineName;  
            package.CreatorName = @"USERNAME"; //System.Environment.UserName;  

            // Adds the ADO.NET connection manager to the package  
            Connections connections = package.Connections;  
            ConnectionManager connectionManager = connections.Add("ADO.NET:SQL");  
            Console.WriteLine("ConnectionManager creation name: {0}", connectionManager.CreationName);  
            connectionManager.Name = @"localhost.AdventureWorks";  
            connectionManager.ConnectionString = @"Data Source=localhost;"  
                + "Initial Catalog=AdventureWorks;"  
                + "Integrated Security=True;";  

            // Create ForEach SMO Loop task  
            Executables executables = package.Executables;  
            ForEachLoop forEachLoop = executables.Add("STOCK:FOREACHLOOP") as ForEachLoop;  
            forEachLoop.Name = "Foreach Loop Container";  
            forEachLoop.Description = "Foreach Loop Container";  

            ForEachEnumeratorInfo forEachEnumeratorInfo = application.ForEachEnumeratorInfos["Foreach SMO Enumerator"];  
            ForEachEnumeratorHost forEachEnumeratorHost = forEachEnumeratorInfo.CreateNew();  
            forEachLoop.ForEachEnumerator = forEachEnumeratorHost;  

            // Setup the SMO enumerator  
            ForEachSMOEnumerator forEachSMOEnumerator = forEachEnumeratorHost.InnerObject as ForEachSMOEnumerator;  
            forEachSMOEnumerator.EnumURN = @"RuntimeServer[@Connection='"  
                + connectionManager.ID + @"']/Server[@Name='localhost']"  
                + @"/Database[@Name='AdventureWorks']"  
                + @"/SMOEnumObj[@Name='Tables']"  
                + @"/SMOEnumType[@Name='ObjectsPP']";  

            System.Collections.IEnumerator smoEnumerator = (System.Collections.IEnumerator)forEachSMOEnumerator.GetEnumerator(  
            connections, null, null, null);  
            Console.WriteLine("The collection contains the following values:");  
            int i = 0;  
            while ((smoEnumerator.MoveNext()) && (smoEnumerator.Current != null))  
                Console.WriteLine("[{0}] {1}", i++, smoEnumerator.Current);  

             smoEnumerator.Reset();  

            // Validate the layout of the package  
            DTSExecResult status = package.Validate(package.Connections, null, null, null);  
            Console.WriteLine("Validation result: " + status);  

            // Save the package  
            String currentDirectory = Environment.CurrentDirectory;  
            application.SaveToXml(currentDirectory + PACKAGEFILENAME, package, null);  
            Console.WriteLine(@"Package saved to " + currentDirectory + PACKAGEFILENAME);  
        }  
    }  
}

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

Namespace SMOEnumerator  
    Class Program  
        const String PACKAGEFILENAME = "\SamplePackage.dtsx"  

        Shared  Sub Main(ByVal args() As String)  
            ' Create the SSIS application  
            Dim application As Application =  New Application()   

            ' Create the new package  
            Dim package As Package =  New Package()   
            package.PackageType = DTSPackageType.DTSDesigner100  
            package.Name = "SMOEnumerator Sample"  
            package.Description = "This is a sample for SMOEnumerator"  
            package.CreatorComputerName = "MACHINENAME" ' System.Environment.MachineName;  
            package.CreatorName = "USERNAME" 'System.Environment.UserName;  

            ' Adds the ADO.NET connection manager to the package  
            Dim connections As Connections =  package.Connections   
            Dim connectionManager As ConnectionManager =  connections.Add("ADO.NET:SQL")   
            Console.WriteLine("ConnectionManager creation name: {0}", connectionManager.CreationName)  
            connectionManager.Name = "localhost.AdventureWorks"  
            connectionManager.ConnectionString = "Data Source=localhost;"  
                + "Initial Catalog=AdventureWorks;"  
                Dim "Integrated Security=True;" As +  

            ' Create ForEach SMO Loop task  
            Dim executables As Executables =  package.Executables   
            Dim forEachLoop As ForEachLoop =  executables.Add("STOCK:FOREACHLOOP") as ForEachLoop   
            forEachLoop.Name = "Foreach Loop Container"  
            forEachLoop.Description = "Foreach Loop Container"  

            Dim forEachEnumeratorInfo As ForEachEnumeratorInfo =  application.ForEachEnumeratorInfos("Foreach SMO Enumerator")   
            Dim forEachEnumeratorHost As ForEachEnumeratorHost =  forEachEnumeratorInfo.CreateNew()   
            forEachLoop.ForEachEnumerator = forEachEnumeratorHost  

            ' Setup the SMO enumerator  
            Dim forEachSMOEnumerator As ForEachSMOEnumerator =  forEachEnumeratorHost.InnerObject as ForEachSMOEnumerator   
            forEachSMOEnumerator.EnumURN = "RuntimeServer[@Connection='"  
                + connectionManager.ID + "']/Server[@Name='localhost']"  
                + "/Database[@Name='AdventureWorks']"  
                + "/SMOEnumObj[@Name='Tables']"  
                Dim "/SMOEnumType[@Name='ObjectsPP']" As +  

            System.Collections.IEnumerator smoEnumerator = (System.Collections.IEnumerator)forEachSMOEnumerator.GetEnumerator(  
                connections, Nothing, Nothing, Nothing)  
            Console.WriteLine("The collection contains the following values:")  
            Dim i As Integer =  0   
            While (smoEnumerator.MoveNext()) &&(smoEnumerator.Current <> Nothing)  
            Console.WriteLine("[{0}] {1}",i = Console.WriteLine("[{0}] {1}",i + 1  
            End While  

             smoEnumerator.Reset()  

            ' Validate the layout of the package  
            Dim status As DTSExecResult =  package.Validate(package.Connections,Nothing,Nothing,Nothing)   
            Console.WriteLine("Validation result: " + status)  

            ' Save the package  
            Dim currentDirectory As String =  Environment.CurrentDirectory   
            application.SaveToXml(currentDirectory + PACKAGEFILENAME, package, Nothing)  
            Console.WriteLine("Package saved to " + currentDirectory + PACKAGEFILENAME)  
        End Sub  
    End Class  
End Namespace

Si applica a