DtsEventHandlers.Item[Object] Propriété

public:
 property Microsoft::SqlServer::Dts::Runtime::DtsEventHandler ^ default[System::Object ^] { Microsoft::SqlServer::Dts::Runtime::DtsEventHandler ^ get(System::Object ^ index); };

public Microsoft.SqlServer.Dts.Runtime.DtsEventHandler this[object index] { get; }

member this.Item(obj) : Microsoft.SqlServer.Dts.Runtime.DtsEventHandler

Default Public ReadOnly Property Item(index As Object) As DtsEventHandler

Paramètres

Valeur de propriété

Objet DtsEventHandler de la collection.

Exemples

L’exemple de code suivant récupère la DtsEventHandlers collection, puis utilise Contains pour voir si la syntaxe [x] de l’élément peut être utilisée sur la collection.

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

namespace Microsoft.SqlServer.SSIS.Samples  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            Package pkg = new Package();  

            // Set up a DtsEventHandler for the OnError event of the package.  
            DtsEventHandler dtsEHOE = (DtsEventHandler)pkg.EventHandlers.Add("OnError");  
            DtsEventHandler dtsEHW = (DtsEventHandler)pkg.EventHandlers.Add("OnWarning");  

            // Create the DtsEventHandlers collection.  
            DtsEventHandlers dtsEHColls = pkg.EventHandlers;  

            // Use the Contains method to see if the item[x] syntax can be used.  
            Boolean dtsContains = dtsEHColls.Contains(0);  
            Console.WriteLine("Item syntax can be used?  {0}", dtsContains);  

            //Using the Item method syntax of [x], obtain the first entry and a name.  
            DtsEventHandler dtsEHFirstEntry = dtsEHColls[0];  
            String nameOfFirstItem = dtsEHColls[0].Name;  

            //Print the name of the log provider object located at position [0].  
            Console.WriteLine("The ID of the first event handler is: {0}", dtsEHFirstEntry.ID);  
            Console.WriteLine("The Name of the first event handler is: {0}", nameOfFirstItem);  
        }  
    }  
}  

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

Namespace Microsoft.SqlServer.SSIS.Samples  
    Class Program  
        Shared  Sub Main(ByVal args() As String)  
            Dim pkg As Package =  New Package()   

            ' Set up a DtsEventHandler for the OnError event of the package.  
            Dim dtsEHOE As DtsEventHandler = CType(pkg.EventHandlers.Add("OnError"), DtsEventHandler)  
            Dim dtsEHW As DtsEventHandler = CType(pkg.EventHandlers.Add("OnWarning"), DtsEventHandler)  

            ' Create the DtsEventHandlers collection.  
            Dim dtsEHColls As DtsEventHandlers =  pkg.EventHandlers   

            ' Use the Contains method to see if the item[x] syntax can be used.  
            Dim dtsContains As Boolean =  dtsEHColls.Contains(0)   
            Console.WriteLine("Item syntax can be used?  {0}", dtsContains)  

            'Using the Item method syntax of [x], obtain the first entry and a name.  
            Dim dtsEHFirstEnTry As DtsEventHandler =  dtsEHColls(0)   
            Dim nameOfFirstItem As String =  dtsEHColls(0).Name   

            'Print the name of the log provider object located at position [0].  
            Console.WriteLine("The ID of the first event handler is: {0}", dtsEHFirstEnTry.ID)  
            Console.WriteLine("The Name of the first event handler is: {0}", nameOfFirstItem)  
        End Sub  
    End Class  
End Namespace  

Exemple de sortie :

La syntaxe d’élément peut être utilisée ? True

L’ID du premier gestionnaire d’événements est : {4B9E438E-BA17-4A51-8235-3072AFF92F999}

Le nom du premier gestionnaire d’événements est : OnError

Remarques

Si l’appel à la Contains méthode retourne true, vous pouvez accéder à l’élément spécifié dans la collection à l’aide de la syntaxe DtsEventHandlers[index]. Si la Contains méthode retourne false, cette propriété lève une exception. En C#, cette propriété est l'indexeur correspondant à la classe DtsEventHandlers.

S’applique à