SqlConnectionStringBuilder.InitialCatalog Eigenschap

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

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

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

Public Property InitialCatalog As String

Waarde van eigenschap

De waarde van de InitialCatalog eigenschap of String.Empty als er geen is opgegeven.

Kenmerken

TypeConverterAttribute

Uitzonderingen

Voorbeelden

In het volgende voorbeeld wordt een eenvoudige verbindingsreeks gemaakt en vervolgens de klasse SqlConnectionStringBuilder gebruikt om de naam van de database toe te voegen aan de verbindingsreeks. De code geeft de inhoud van de InitialCatalog eigenschap weer, alleen om te controleren of de klasse kan worden geconverteerd van het synoniem ('Database') naar de juiste eigenschapswaarde.

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

Opmerkingen

Deze eigenschap komt overeen met de sleutels 'Initiële catalogus' en 'database' in de verbindingsreeks.

Zie ook

• Verbindingsreeksen in ADO.NET
• overzicht van ADO.NET