DataAdapter.MissingSchemaAction Properti

Definisi

Ruang nama:

System.Data.Common

Rakitan:

System.Data.Common.dll

Sumber:

DataAdapter.cs

Menentukan tindakan yang akan diambil ketika skema yang DataSet ada tidak cocok dengan data masuk.

public:
 property System::Data::MissingSchemaAction MissingSchemaAction { System::Data::MissingSchemaAction get(); void set(System::Data::MissingSchemaAction value); };

public System.Data.MissingSchemaAction MissingSchemaAction { get; set; }

member this.MissingSchemaAction : System.Data.MissingSchemaAction with get, set

Public Property MissingSchemaAction As MissingSchemaAction

Nilai Properti

MissingSchemaAction

Salah MissingSchemaAction satu nilai. Default adalah Add.

Penerapan

MissingSchemaAction

Pengecualian

ArgumentException

Kumpulan nilai bukan salah MissingSchemaAction satu nilai.

Contoh

Contoh berikut membuat kelas turunan, OleDbDataAdapter dan menetapkan beberapa propertinya.

// Assumes a valid connection string to an Access database.
static void CreateOleDbAdapter(string connectionString)
{
    OleDbDataAdapter adapter = new OleDbDataAdapter();
    adapter.SelectCommand =
        new OleDbCommand("SELECT * FROM Categories ORDER BY CategoryID");
    adapter.SelectCommand.Connection =
        new OleDbConnection(connectionString);
    adapter.MissingMappingAction = MissingMappingAction.Error;
    adapter.MissingSchemaAction = MissingSchemaAction.Error;
}

' Assumes a valid connection string to an Access database.
Private Sub CreateOleDbDataAdapter(ByVal connectionString As String)
    Dim adapter As New OleDbDataAdapter()
    adapter.SelectCommand = _
       New OleDbCommand("SELECT * FROM Categories ORDER BY CategoryID")
    adapter.SelectCommand.Connection = New OleDbConnection _
       (connectionString)
    adapter.MissingMappingAction = MissingMappingAction.Error
    adapter.MissingSchemaAction = MissingSchemaAction.Error
End Sub

Lihat juga

• MissingMappingAction
• Ringkasan ADO.NET