Code からの接続

CData ADO.NET Provider for EnterpriseDB は、EnterpriseDBConnection に標準DbConnection オブジェクトを実装しています。EnterpriseDBConnectionStringBuilder を使用して、プログラムで接続文字列をビルド、パース、およびリビルドすることもできます。

Connection オブジェクトの作成

接続文字列の定義と認証については、接続の確立を参照してください。EnterpriseDBConnection オブジェクトを作成する一般的な呼び出しは以下のとおりです。

using (EnterpriseDBConnection connection =   
  new EnterpriseDBConnection("User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5444"))  
{  
  connection.Open();  
}

VB.NET

Using connection As New EnterpriseDBConnection("User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5444")
  connection.Open
End Using

EnterpriseDBConnectionStringBuilder の使用

次のコード例は、ADO.NET 接続文字列ビルダーを使用して接続文字列をパースする方法を示します。

EnterpriseDBConnectionStringBuilder builder =
  new EnterpriseDBConnectionStringBuilder("User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5444");
  //Pass the connection string builder an existing connection string, and you can get and set any of the elements as strongly typed properties.
  builder.ConnectionString = "User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5444";
  //Now that the connection string has been parsed,
  // you can work with individual items:
  builder.MyString = "new property";
  builder.MyBoolean = true;

  // You can refer to connection keys using strings, 
  // as well. 
  builder["Logfile"] = "test.log";
  builder["Verbosity"] = 5;

VB.NET

Dim builder As EnterpriseDBConnectionStringBuilder = New EnterpriseDBConnectionStringBuilder("User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5444")
'Pass the connection string builder an existing connection string, and you can get and set any of the elements using strongly typed properties.
builder.ConnectionString = User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5444"
'Now that the connection string has been parsed,
' you can work with individual items:
builder.MyString = "new property"
builder.MyBoolean = True
  
' You can refer to connection keys using strings, 
' as well. 
builder("Logfile") = "test.log"
builder("Verbosity") = 5