DataAdapter.MissingSchemaAction Propiedad

Definición

Espacio de nombres:
System.Data.Common
Ensamblado:
System.Data.dll
Ensamblado:
netstandard.dll

Determina la acción que se debe realizar cuando el esquema existente DataSet no coincide con los datos entrantes.

public:
 property System::Data::MissingSchemaAction MissingSchemaAction { System::Data::MissingSchemaAction get(); void set(System::Data::MissingSchemaAction value); };
[System.Data.DataSysDescription("DataAdapter_MissingSchemaAction")]
public System.Data.MissingSchemaAction MissingSchemaAction { get; set; }
public System.Data.MissingSchemaAction MissingSchemaAction { get; set; }
[<System.Data.DataSysDescription("DataAdapter_MissingSchemaAction")>]
member this.MissingSchemaAction : System.Data.MissingSchemaAction with get, set
member this.MissingSchemaAction : System.Data.MissingSchemaAction with get, set
Public Property MissingSchemaAction As MissingSchemaAction

Valor de propiedad

MissingSchemaAction

Uno de los MissingSchemaAction valores. El valor predeterminado es Add.

Implementaciones

MissingSchemaAction
Atributos
DataSysDescriptionAttribute

Excepciones

ArgumentException

El conjunto de valores no es uno de los MissingSchemaAction valores.

Ejemplos

En el ejemplo siguiente se crea una clase OleDbDataAdapter derivada y se establecen algunas de sus propiedades.

// 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

Se aplica a

Consulte también