SqlClientFactory.CreateDataSourceEnumerator Metode

Definisi

Ruang nama:

Microsoft.Data.SqlClient

Rakitan:

Microsoft.Data.SqlClient.dll

Paket:

Microsoft.Data.SqlClient v5.2.0

Mengembalikan baru SqlDataSourceEnumerator .

public:
 override System::Data::Common::DbDataSourceEnumerator ^ CreateDataSourceEnumerator();

public override System.Data.Common.DbDataSourceEnumerator CreateDataSourceEnumerator ();

override this.CreateDataSourceEnumerator : unit -> System.Data.Common.DbDataSourceEnumerator

Public Overrides Function CreateDataSourceEnumerator () As DbDataSourceEnumerator

Mengembalikan

DbDataSourceEnumerator

Enumerator sumber data baru.

Contoh

Contoh berikut menampilkan daftar semua sumber data SQL Server yang tersedia, menggunakan kode yang dapat menghitung sumber data untuk penyedia mana pun.

// <Snippet1>
using System;
using System.Data;
using System.Data.Common;
using Microsoft.Data.SqlClient;

class Program
{
    static void Main()
    {
        // List all SQL Server instances:
        ListServers(SqlClientFactory.Instance);

        Console.WriteLine();
        Console.WriteLine("Press any key to continue...");
        Console.ReadKey();
    }
    private static void ListServers(DbProviderFactory factory)
    {
        // This procedure is provider-agnostic, and can list
        // instances of any provider's servers. Of course, 
        // not all providers can create a data source enumerator,
        // so it's best to check the CanCreateDataSourceEnumerator 
        // property before attempting to list the data sources.
        if (factory.CanCreateDataSourceEnumerator)
        {
            DbDataSourceEnumerator instance =
                factory.CreateDataSourceEnumerator();
            DataTable table = instance.GetDataSources();

            foreach (DataRow row in table.Rows)
            {
                Console.WriteLine("{0}\\{1}",
                    row["ServerName"], row["InstanceName"]);
            }
        }
    }
}
// </Snippet1>