ConfigurationManager.ConnectionStrings Propiedad

  • Referencia

Definición

Espacio de nombres:
System.Configuration
Ensamblado:
System.Configuration.ConfigurationManager.dll
Ensamblado:
System.Configuration.dll
Paquete:
System.Configuration.ConfigurationManager v8.0.1
Paquete:
System.Configuration.ConfigurationManager v9.0.0-rc.2.24473.5
Source:
ConfigurationManager.cs
Source:
ConfigurationManager.cs

Obtiene los datos ConnectionStringsSection de la configuración predeterminada de la aplicación actual.

public:
 static property System::Configuration::ConnectionStringSettingsCollection ^ ConnectionStrings { System::Configuration::ConnectionStringSettingsCollection ^ get(); };
public static System.Configuration.ConnectionStringSettingsCollection ConnectionStrings { get; }
static member ConnectionStrings : System.Configuration.ConnectionStringSettingsCollection
Public Shared ReadOnly Property ConnectionStrings As ConnectionStringSettingsCollection

Valor de propiedad

ConnectionStringSettingsCollection

Contenido del objeto ConnectionStringsSection para la configuración predeterminada de la aplicación actual.

Excepciones

ConfigurationErrorsException

No se pudo recuperar un objeto ConnectionStringSettingsCollection.

Ejemplos

En el ejemplo siguiente se muestra cómo usar una cadena de conexión para leer datos de una base de datos.

using System;
using System.Configuration;
using System.Data.SqlClient;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            ReadProducts();
        }

        static void ReadProducts()
        {
            var connectionString = ConfigurationManager.ConnectionStrings["WingtipToys"].ConnectionString;
            string queryString = "SELECT Id, ProductName FROM dbo.Products;";
            using (var connection = new SqlConnection(connectionString))
            {
                var command = new SqlCommand(queryString, connection);
                connection.Open();
                using (var reader = command.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        Console.WriteLine(String.Format("{0}, {1}", reader[0], reader[1]));
                    }
                }
            }
        }
    }
}

Imports System.Configuration
Imports System.Data.SqlClient
Module Module1

    Sub Main()
        ReadProducts()
    End Sub

    Sub ReadProducts()
        Dim connectionString = ConfigurationManager.ConnectionStrings("WingtipToys").ConnectionString
        Dim queryString = "SELECT Id, ProductName FROM dbo.Products;"
        Using connection As New SqlConnection(connectionString)
            Dim command = New SqlCommand(queryString, connection)
            connection.Open()

            Using reader As SqlDataReader = command.ExecuteReader()
                While reader.Read()
                    Console.WriteLine(String.Format("{0}, {1}", reader(0), reader(1)))
                End While
            End Using
        End Using
    End Sub

End Module

Comentarios

Un objeto ConnectionStringsSection contiene el contenido de la sección connectionStrings del archivo de configuración.

Se aplica a

Consulte también