ExtendedProperties.GetEnumerator Método

Definición

Espacio de nombres:

Microsoft.SqlServer.Dts.Runtime

Ensamblado:

Microsoft.SqlServer.ManagedDTS.dll

Devuelve un objeto ExtendedPropertyEnumerator para iterar por la colección ExtendedProperties.

public:
 Microsoft::SqlServer::Dts::Runtime::ExtendedPropertyEnumerator ^ GetEnumerator();

public Microsoft.SqlServer.Dts.Runtime.ExtendedPropertyEnumerator GetEnumerator ();

override this.GetEnumerator : unit -> Microsoft.SqlServer.Dts.Runtime.ExtendedPropertyEnumerator

Public Function GetEnumerator () As ExtendedPropertyEnumerator

Devoluciones

ExtendedPropertyEnumerator

Enumerador ExtendedPropertyEnumerator para iterar por la colección.

Ejemplos

En el ejemplo de código siguiente se crea un ExtendedPropertyEnumerator mediante el GetEnumerator método y, a continuación, se recorre en iteración la colección.

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

namespace ExtendedProperties_Testing  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            // The package is one of the SSIS samples.  
            string mySample = @"C:\Program Files\Microsoft SQL Server\100\Samples\Integration Services\Package Samples\CalculatedColumns Sample\CalculatedColumns\CalculatedColumns.dtsx";  
            // Create the application, and load the sample.  
            Application app = new Application();  
            Package pkg = app.LoadPackage(mySample, null);  

            // Get the extended properties collection from the package.  
            ExtendedProperties myExtProps = pkg.ExtendedProperties;  
            //Create the enumerator.  
            ExtendedPropertyEnumerator myEnumerator = myExtProps.GetEnumerator();  

            Console.WriteLine("The collection contains the following values:");  
            int i = 0;  
            ExtendedProperty myExtProp;  
            while ((myEnumerator.MoveNext()) && (myEnumerator.Current != null))  
            {  
                myExtProp = (ExtendedProperty)myEnumerator.Current;  
                Console.WriteLine("[{0}] {1}, {2}", i++, myExtProp.ID, myExtProp.DataType);  
                Console.WriteLine("------------------------------");  
            }  
            // Reset puts the index pointer before the beginning.  
            // Do not retrieve from the collection until MoveNext is called.  
            myEnumerator.Reset();  
            myEnumerator.MoveNext();  

            // Now that the enumerator has been reset, and moved to the  
            // first item in the collection, show the first item.  
            myExtProp = (ExtendedProperty)myEnumerator.Current;  
            Console.WriteLine("The first item in the enumerator after Reset:");  
            Console.WriteLine("{0}, {1}", myExtProp.ID, myExtProp.DataType);  
            Console.WriteLine();  
        }  
    }  
}  

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

Namespace ExtendedProperties_Testing  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            ' The package is one of the SSIS samples.  
            Dim mySample As String =  "C:\Program Files\Microsoft SQL Server\100\Samples\Integration Services\Package Samples\CalculatedColumns Sample\CalculatedColumns\CalculatedColumns.dtsx"   
            ' Create the application, and load the sample.  
            Dim app As Application =  New Application()   
            Dim pkg As Package =  app.LoadPackage(mySample,Nothing)   

            ' Get the extended properties collection from the package.  
            Dim myExtProps As ExtendedProperties =  pkg.ExtendedProperties   
            'Create the enumerator.  
            Dim myEnumerator As ExtendedPropertyEnumerator =  myExtProps.GetEnumerator()   

            Console.WriteLine("The collection contains the following values:")  
            Dim i As Integer =  0   
            Dim myExtProp As ExtendedProperty  
            While (myEnumerator.MoveNext()) &&(myEnumerator.Current <> Nothing)  
                myExtProp = CType(myEnumerator.Current, ExtendedProperty)  
                Console.WriteLine("[{0}] {1}, {2}",i = Console.WriteLine("[{0}] {1}, {2}",i + 1  
                Console.WriteLine("------------------------------")  
            End While  
            ' Reset puts the index pointer before the beginning.  
            ' Do not retrieve from the collection until MoveNext is called.  
            myEnumerator.Reset()  
            myEnumerator.MoveNext()  

            ' Now that the enumerator has been reset, and moved to the  
            ' first item in the collection, show the first item.  
            myExtProp = CType(myEnumerator.Current, ExtendedProperty)  
            Console.WriteLine("The first item in the enumerator after Reset:")  
            Console.WriteLine("{0}, {1}", myExtProp.ID, myExtProp.DataType)  
            Console.WriteLine()  
        End Sub  
    End Class  
End Namespace  

Salida del ejemplo:

La colección contiene los siguientes valores:

[0] {F3B7314E-DB1E-4CCA-A856-2E617A1B3265}, String

------------------------------

[1] {AA947F2D-C3B3-420F-B39E-4B7C77DAAFC0}, String

------------------------------

[2] {AB2CCC33-3090-4C36-B444-5B50BB481324}, String

------------------------------

[3] {FE85601C-4ECC-41D4-BEAA-1318DDF7EE2A}, String

------------------------------

[4] {4D1641B9-94EF-4144-9820-1B30ABD2214F}, String

------------------------------

[5] {4E76A01C-BFF8-462D-AAB0-FB48B3EEAE00}, String

------------------------------

[6] {A56842E2-11C1-487E-B670-33F25B534146}, String

------------------------------

Primer elemento del enumerador después de Restablecer:

{F3B7314E-DB1E-4CCA-A856-2E617A1B3265}, String