SqlConnectionStringBuilder.InitialCatalog Propriedade

  • Referência

Definição

Namespace:
System.Data.SqlClient
Assembly:
System.Data.SqlClient.dll
Assembly:
System.Data.dll
Pacote:
System.Data.SqlClient v4.8.6

Obtém ou define o nome do banco de dados associado à conexão.

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

Valor da propriedade

String

O valor da propriedade InitialCatalog ou String.Empty se nenhum tiver sido aplicado.

Atributos
TypeConverterAttribute

Exceções

ArgumentNullException

Para definir o valor como nulo, use Value.

Exemplos

O exemplo a seguir cria uma cadeia de conexão simples e usa a SqlConnectionStringBuilder classe para adicionar o nome do banco de dados ao cadeia de conexão. O código exibe o conteúdo da InitialCatalog propriedade , apenas para verificar se a classe foi capaz de converter do sinônimo ("Database") para o valor de propriedade apropriado.

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

Comentários

Essa propriedade corresponde às chaves "Catálogo Inicial" e "banco de dados" no cadeia de conexão.

Aplica-se a

Confira também