Compartilhar via

  • Artigo

Método Contains

Specifies whether an item can be retrieved from the ForEachEnumeratorInfos collection using indexing without throwing an exception.

Namespace:  Microsoft.SqlServer.Dts.Runtime
Assembly:  Microsoft.SqlServer.ManagedDTS (em Microsoft.SqlServer.ManagedDTS.dll)

Sintaxe

'Declaração
Public Function Contains ( _
    index As Object _
) As Boolean
'Uso
Dim instance As ForEachEnumeratorInfos
Dim index As Object
Dim returnValue As Boolean

returnValue = instance.Contains(index)

public bool Contains(
    Object index
)

public:
bool Contains(
    Object^ index
)

member Contains : 
        index:Object -> bool 

public function Contains(
    index : Object
) : boolean

Parâmetros

Valor de retorno

Tipo: System. . :: . .Boolean
A Boolean that indicates whether items can be retrieved using indexing. A value of true indicates that the syntax ForEachEnumeratorInfos[x] can be used without throwing an exception. A value of false indicates that indexing cannot be used to retrieve items from the ForEachEnumeratorInfos collection.

Exemplos

The following code sample uses the Contains method to determine if an enumerator with the name "For Each File Enumerator" is in the collection. The method returns a Boolean.

ObservaçãoObservação

To use the following code sample with a locale other than English, change the string, "For Each File Enumerator", to the localized name of the enumerator.

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

namespace ForEachEnums
{
    class Program
    {
        static void Main(string[] args)
        {
            Application app = new Application();
            ForEachEnumeratorInfos feInfos = app.ForEachEnumeratorInfos;

            // Search the collection by name.
            if (feInfos.Contains("For Each File Enumerator"))
                Console.WriteLine("The collection contains {0} enumerator", feInfos[0].Name);
            else
                Console.WriteLine("The collection does not contain {0} enumerator", feInfos[0].Name);
        }
    }
}

Sample Output:

The collection contains For Each File Enumerator enumerator