Code からの接続
CData ADO.NET Provider for Yahoo! JAPAN DATA SOLUTION は、YahooDSConnection に標準DbConnection オブジェクトを実装しています。YahooDSConnectionStringBuilder 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。YahooDSConnection 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。
C#
using (YahooDSConnection connection =
new YahooDSConnection("AppID=12345678-1234-1234-1234-123456789012;"))
{
connection.Open();
}
VB.NET
Using connection As New YahooDSConnection("AppID=12345678-1234-1234-1234-123456789012;")
connection.Open
End Using
YahooDSConnectionStringBuilder 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。
C#
YahooDSConnectionStringBuilder builder =
new YahooDSConnectionStringBuilder("AppID=12345678-1234-1234-1234-123456789012;");
//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 = "AppID=12345678-1234-1234-1234-123456789012;";
//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 YahooDSConnectionStringBuilder = New YahooDSConnectionStringBuilder("AppID=12345678-1234-1234-1234-123456789012;")
'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 = AppID=12345678-1234-1234-1234-123456789012;"
'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