DtsEventHandlers.Add(String) Método

Definición

Espacio de nombres:

Microsoft.SqlServer.Dts.Runtime

Ensamblado:

Microsoft.SqlServer.ManagedDTS.dll

Agrega un nuevo evento a la colección DtsEventHandlers.

public:
 System::Object ^ Add(System::String ^ eventName);

public object Add (string eventName);

member this.Add : string -> obj

Public Function Add (eventName As String) As Object

Parámetros

eventName

String

El nombre del evento que se va a agregar a la colección.

Devoluciones

Object

El objeto DtsEventHandler que se ha agregado a la colección.

Ejemplos

En el ejemplo de código siguiente se crea un DtsEventHandler para el OnError evento en el paquete. Este DtsEventHandler contenedor contiene dos ejecutables y establece una restricción de precedencia entre ellos. En el ejemplo de código se muestra el número de restricciones de precedencia en el contenedor, así como el número de ejecutables del contenedor. A continuación, el ejemplo de código quita un ejecutable y vuelve a mostrar el recuento.

using System;  
using System.Collections.Generic;  
using System.Text;  
using Microsoft.SqlServer.Dts.Runtime;  
using Microsoft.SqlServer.Dts.Tasks.SendMailTask;  
using Microsoft.SqlServer.Dts.Tasks.BulkInsertTask;  

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 dtsEH = (DtsEventHandler)pkg.EventHandlers.Add("OnError");  

            // Show the name and type of the properties in DtsEventHandler  
            // using the Properties collection.  
            DtsProperties props = dtsEH.Properties;  
            String name;  
            TypeCode propType;  
            foreach (DtsProperty prop in props)  
            {  
                propType = prop.Type;  
                name = prop.Name;  
                Console.WriteLine("Name {0}, Type {1}", name, propType);  
            }  

            // When an OnError Event occurs, the Executables collection contains  
            // the items to run. For this example, there will be a SendMailtTask  
            // and a BulkInsertTask with a precedence constraint between them.  
            Executable dtsEH1 = dtsEH.Executables.Add("STOCK:SendMailTask");  
            TaskHost th = (TaskHost)dtsEH1;  
            SendMailTask smTask = (SendMailTask)th.InnerObject;  
            smTask.Subject = "Send Mail task";  

            // Add a second executable to the DtsEventHandler.  
            Executable dtsEH2 = dtsEH.Executables.Add("STOCK:BulkInsertTask");  
            TaskHost th2 = (TaskHost)dtsEH2;  

            // Add a precedence constraint between the two tasks.  
            PrecedenceConstraint pc = dtsEH.PrecedenceConstraints.Add(dtsEH1, dtsEH2);  
            pc.Value = DTSExecResult.Completion;  

            // Review the number of constraints in the DtsEventHandler collection.  
            PrecedenceConstraints pcDTSEH = dtsEH.PrecedenceConstraints;  
            Console.WriteLine("Number of precedence constraints in DtsEventHandler: {0}", dtsEH.PrecedenceConstraints.Count);  

            // Review the number of executables in the DtsEventHandler collection.  
            Console.WriteLine("Number of executables in DtsEventHandler: {0}", dtsEH.Executables.Count);  

            // Remove the first executable in the DtsEventHandler collection.  
            dtsEH.Executables.Remove(0);  
            Console.WriteLine("New number of exeutables in DtsEventHandler: {0}", dtsEH.Executables.Count);  
        }  
    }  
}  

Imports System  
Imports System.Collections.Generic  
Imports System.Text  
Imports Microsoft.SqlServer.Dts.Runtime  
Imports Microsoft.SqlServer.Dts.Tasks.SendMailTask  
Imports Microsoft.SqlServer.Dts.Tasks.BulkInsertTask  

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 dtsEH As DtsEventHandler = CType(pkg.EventHandlers.Add("OnError"), DtsEventHandler)  

            ' Show the name and type of the properties in DtsEventHandler  
            ' using the Properties collection.  
            Dim props As DtsProperties =  dtsEH.Properties   
            Dim name As String  
            Dim propType As TypeCode  
            Dim prop As DtsProperty  
            For Each prop In props  
                propType = prop.Type  
                name = prop.Name  
                Console.WriteLine("Name {0}, Type {1}", name, propType)  
            Next  

            ' When an OnError Event occurs, the Executables collection contains  
            ' the items to run. For this example, there will be a SendMailtTask  
            ' and a BulkInsertTask with a precedence constraint between them.  
            Dim dtsEH1 As Executable =  dtsEH.Executables.Add("STOCK:SendMailTask")   
            Dim th As TaskHost = CType(dtsEH1, TaskHost)  
            Dim smTask As SendMailTask = CType(th.InnerObject, SendMailTask)  
            smTask.Subject = "Send Mail task"  

            ' Add a second executable to the DtsEventHandler.  
            Dim dtsEH2 As Executable =  dtsEH.Executables.Add("STOCK:BulkInsertTask")   
            Dim th2 As TaskHost = CType(dtsEH2, TaskHost)  

            ' Add a precedence constraint between the two tasks.  
            Dim pc As PrecedenceConstraint =  dtsEH.PrecedenceConstraints.Add(dtsEH1,dtsEH2)   
            pc.Value = DTSExecResult.Completion  

            ' Review the number of constraints in the DtsEventHandler collection.  
            Dim pcDTSEH As PrecedenceConstraints =  dtsEH.PrecedenceConstraints   
            Console.WriteLine("Number of precedence constraints in DtsEventHandler: {0}", dtsEH.PrecedenceConstraints.Count)  

            ' Review the number of executables in the DtsEventHandler collection.  
            Console.WriteLine("Number of executables in DtsEventHandler: {0}", dtsEH.Executables.Count)  

            ' Remove the first executable in the DtsEventHandler collection.  
            dtsEH.Executables.Remove(0)  
            Console.WriteLine("New number of exeutables in DtsEventHandler: {0}", dtsEH.Executables.Count)  
        End Sub  
    End Class  
End Namespace  

Salida del ejemplo:

Name CreationName, Type String

Name DelayValidation, Type Boolean

Descripción del nombre, Cadena de tipo

Name Disable, Escriba Boolean

Archivos ejecutables de nombre, objeto Type

Name ExecutionDuration, escriba Int32

Name ExecutionResult, Type (objeto)

Name ExecutionStatus, Type (objeto)

Variables name, type (objeto)

Número de restricciones de precedencia en DtsEventHandler: 1

Número de ejecutables en DtsEventHandler: 2

Nuevo número de exeutables en DtsEventHandler: 1

Comentarios

Integration Services proporciona muchos eventos, además de permitirle crear sus propios eventos personalizados. Para obtener más información sobre los controladores de eventos, vea Controladores de eventos de Integration Services (SSIS) y Agregar un controlador de eventos a un paquete. Para obtener más información sobre los eventos personalizados, vea Developing a Custom Task.