SqlCeDataAdapter Constructor (String, String)
Initialise une nouvelle instance de la classe SqlCeDataAdapter avec SelectCommand et une chaîne de connexion.
Espace de noms: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (dans system.data.sqlserverce.dll)
Syntaxe
'Déclaration
Public Sub New ( _
selectCommandText As String, _
selectConnectionString As String _
)
public SqlCeDataAdapter (
string selectCommandText,
string selectConnectionString
)
public:
SqlCeDataAdapter (
String^ selectCommandText,
String^ selectConnectionString
)
public SqlCeDataAdapter (
String selectCommandText,
String selectConnectionString
)
public function SqlCeDataAdapter (
selectCommandText : String,
selectConnectionString : String
)
Paramètres
- selectCommandText
String qui est une instruction SQL SELECT à utiliser en tant que CommandText de la propriété SelectCommand de SqlCeDataAdapter.
- selectConnectionString
Chaîne de connexion.
Remarques
Lorsque vous créez une instance de SqlCeDataAdapter, les valeurs initiales suivantes sont affectées aux propriétés de lecture/écriture ci-dessous.
Propriétés |
Valeur initiale |
MissingMappingAction.Passthrough |
|
MissingSchemaAction.Add |
Vous pouvez modifier la valeur de n'importe laquelle de ces propriétés par un appel séparé à la propriété.
Exemple
L'exemple suivant crée SqlCeDataAdapter en passant le texte de commande et la chaîne de connexion.
Public Sub Snippet5()
' Create DataAdapter
'
Dim adp As New SqlCeDataAdapter("SELECT * FROM products", "Data Source = MyDatabase.sdf")
Dim cb As New SqlCeCommandBuilder(adp)
' Create and fill the dataset (select only first 5 rows)
'
Dim ds As New DataSet()
adp.Fill(ds, 0, 5, "Table")
' Modify dataSet
'
Dim table As DataTable = ds.Tables("Table")
table.Rows(1)("Product Name") = "Asian Chai"
' Add handlers
'
AddHandler adp.RowUpdating, AddressOf OnRowUpdating
AddHandler adp.RowUpdated, AddressOf OnRowUpdated
' Update, this operation fires two events (RowUpdating/RowUpdated)
'
adp.Update(ds, "Table")
' Remove handlers
'
RemoveHandler adp.RowUpdating, AddressOf OnRowUpdating
RemoveHandler adp.RowUpdated, AddressOf OnRowUpdated
End Sub 'Snippet5
Private Shared Sub OnRowUpdating(ByVal sender As Object, ByVal e As SqlCeRowUpdatingEventArgs)
Console.WriteLine("OnRowUpdating")
Console.WriteLine(e.Command.CommandText)
Console.WriteLine(e.StatementType)
Console.WriteLine(e.Status)
End Sub 'OnRowUpdating
Private Shared Sub OnRowUpdated(ByVal sender As Object, ByVal e As SqlCeRowUpdatedEventArgs)
Console.WriteLine("OnRowUpdated")
Console.WriteLine(e.Command.CommandText)
Console.WriteLine(e.StatementType)
Console.WriteLine(e.Status)
End Sub 'OnRowUpdated
public void Snippet5()
{
// Create DataAdapter
//
SqlCeDataAdapter adp = new SqlCeDataAdapter(
"SELECT * FROM products",
"Data Source = MyDatabase.sdf");
SqlCeCommandBuilder cb = new SqlCeCommandBuilder(adp);
// Create and fill the dataset (select only first 5 rows)
//
DataSet ds = new DataSet();
adp.Fill(ds, 0, 5, "Table");
// Modify dataSet
//
DataTable table = ds.Tables["Table"];
table.Rows[1]["Product Name"] = "Asian Chai";
// Add handlers
//
adp.RowUpdating += new SqlCeRowUpdatingEventHandler(OnRowUpdating);
adp.RowUpdated += new SqlCeRowUpdatedEventHandler(OnRowUpdated);
// Update, this operation fires two events (RowUpdating/RowUpdated)
//
adp.Update(ds, "Table");
// Remove handlers
//
adp.RowUpdating -= new SqlCeRowUpdatingEventHandler(OnRowUpdating);
adp.RowUpdated -= new SqlCeRowUpdatedEventHandler(OnRowUpdated);
}
private static void OnRowUpdating(object sender, SqlCeRowUpdatingEventArgs e)
{
Console.WriteLine("OnRowUpdating");
Console.WriteLine(e.Command.CommandText);
Console.WriteLine(e.StatementType);
Console.WriteLine(e.Status);
}
private static void OnRowUpdated(object sender, SqlCeRowUpdatedEventArgs e)
{
Console.WriteLine("OnRowUpdated");
Console.WriteLine(e.Command.CommandText);
Console.WriteLine(e.StatementType);
Console.WriteLine(e.Status);
}
Plateformes
Plateformes de développement
Windows Vista, Windows Mobile 5.0, Windows XP Professional with Service Pack 2 (SP2), Windows Server 2003, Windows Mobile 2003 for Pocket PC, Windows CE 5.0
Informations sur la version
.NET Framework et NET Compact Framework
Pris en charge dans 3.5
.NET Framework
Pris en charge dans 3.0
.NET Compact Framework et .Net Framework
Pris en charge dans 2.0
Voir aussi
Référence
SqlCeDataAdapter Class
SqlCeDataAdapter Members
System.Data.SqlServerCe Namespace
MissingMappingAction
MissingSchemaAction