SqlConnectionStringBuilder.InitialCatalog Propriété

public:
 property System::String ^ InitialCatalog { System::String ^ get(); void set(System::String ^ value); };

public string InitialCatalog { get; set; }

[System.ComponentModel.TypeConverter(typeof(System.Data.SqlClient.SqlConnectionStringBuilder+SqlInitialCatalogConverter))]
public string InitialCatalog { get; set; }

member this.InitialCatalog : string with get, set

[<System.ComponentModel.TypeConverter(typeof(System.Data.SqlClient.SqlConnectionStringBuilder+SqlInitialCatalogConverter))>]
member this.InitialCatalog : string with get, set

Public Property InitialCatalog As String

Valeur de propriété

Valeur de la InitialCatalog propriété, ou String.Empty si aucune n’a été fournie.

Attributs

TypeConverterAttribute

Exceptions

Exemples

L’exemple suivant crée une chaîne de connexion simple, puis utilise la SqlConnectionStringBuilder classe pour ajouter le nom de la base de données à la chaîne de connexion. Le code affiche le contenu de la InitialCatalog propriété, juste pour vérifier que la classe a pu effectuer la conversion du synonyme (« Database ») en valeur de propriété appropriée.

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        try
        {
            string connectString = "Data Source=(local);" +
                "Integrated Security=true";

            SqlConnectionStringBuilder builder =
                new SqlConnectionStringBuilder(connectString);
            Console.WriteLine("Original: " + builder.ConnectionString);

            // Normally, you could simply set the InitialCatalog
            // property of the SqlConnectionStringBuilder object. This
            // example uses the default Item property (the C# indexer)
            // and the "Database" string, simply to demonstrate that
            // setting the value in this way results in the same
            // connection string:
            builder["Database"] = "AdventureWorks";
            Console.WriteLine("builder.InitialCatalog = "
                + builder.InitialCatalog);
            Console.WriteLine("Modified: " + builder.ConnectionString);

            using (SqlConnection connection =
                new SqlConnection(builder.ConnectionString))
            {
                connection.Open();
                // Now use the open connection.
                Console.WriteLine("Database = " + connection.Database);
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }

        Console.WriteLine("Press any key to finish.");
        Console.ReadLine();
    }
}

Imports System.Data.SqlClient
    
Module Module1
    Sub Main()
        Try
            Dim connectString As String = _
             "Data Source=(local);" & _
             "Integrated Security=True"

            Dim builder As New SqlConnectionStringBuilder(connectString)
            Console.WriteLine("Original: " & builder.ConnectionString)

            ' Normally, you could simply set the InitialCatalog
            ' property of the SqlConnectionStringBuilder object. This
            ' example uses the default Item property (the C# indexer)
            ' and the "Database" string, simply to demonstrate that
            ' setting the value in this way results in the same
            ' connection string.
            builder("Database") = "AdventureWorks"
            Console.WriteLine("builder.InitialCatalog = " _
                & builder.InitialCatalog)
            Console.WriteLine("Modified: " & builder.ConnectionString)

            Using connection As New SqlConnection(builder.ConnectionString)
                connection.Open()
                ' Now use the open connection.
                Console.WriteLine("Database = " & connection.Database)
            End Using

        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try

        Console.WriteLine("Press any key to finish.")
        Console.ReadLine()
    End Sub
End Module

Remarques

Cette propriété correspond aux clés « Catalogue initial » et « base de données » dans la chaîne de connexion.

Voir aussi

• Chaînes de connexion dans ADO.NET
• Vue d'ensemble d’ADO.NET