DataAdapter.MissingMappingAction 屬性

定義

命名空間:

System.Data.Common

組件:

System.Data.Common.dll

來源:

DataAdapter.cs

判斷在傳入的資料不具有相符的資料表或資料行時要採取的動作。

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

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

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

Public Property MissingMappingAction As MissingMappingAction

屬性值

MissingMappingAction

其中一個 MissingMappingAction 值。 預設值為 Passthrough。

實作

MissingMappingAction

例外狀況

ArgumentException

設定的值不是其中一個 MissingMappingAction 值。

範例

下列範例會建立衍生類別， OleDbDataAdapter 並設定其部分屬性。

// 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

備註

屬性 TableMappings 提供傳回記錄與 DataSet之間的主要對應。

另請參閱

• MissingSchemaAction
• ADO.NET 概觀 \(部分機器翻譯\)