Classe SubmitOperation

Article
03/18/2011

Représente une opération d'envoi asynchrone.

Espace de noms: System.ServiceModel.DomainServices.Client
Assembly : System.ServiceModel.DomainServices.Client (dans system.servicemodel.domainservices.client.dll)

Utilisation

'Utilisation
Dim instance As SubmitOperation

Syntaxe

'Déclaration
Public NotInheritable Class SubmitOperation
    Inherits OperationBase

public sealed class SubmitOperation : OperationBase

public ref class SubmitOperation sealed : public OperationBase

public final class SubmitOperation extends OperationBase

public final class SubmitOperation extends OperationBase

Exemple

L'exemple suivant illustre une méthode de rappel nommée OnSubmitCompleted qui accepte comme paramètre un objet SubmitOperation. Il utilise cet objet pour rechercher des erreurs et les marquer comme étant gérées.

Private Sub SaveButton_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    _customerContext.SubmitChanges(AddressOf OnSubmitCompleted, Nothing)
End Sub

Private Sub RejectButton_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
    _customerContext.RejectChanges()
    CheckChanges()
End Sub

Private Sub CustomerGrid_RowEditEnded(ByVal sender As System.Object, ByVal e As System.Windows.Controls.DataGridRowEditEndedEventArgs)
    CheckChanges()
End Sub

Private Sub CheckChanges()
    Dim changeSet = _customerContext.EntityContainer.GetChanges()
    ChangeText.Text = changeSet.ToString()

    Dim hasChanges = _customerContext.HasChanges
    SaveButton.IsEnabled = hasChanges
    RejectButton.IsEnabled = hasChanges
End Sub

Private Sub OnSubmitCompleted(ByVal so As SubmitOperation)
    If (so.HasError) Then
        MessageBox.Show(String.Format("Submit Failed: {0}", so.Error.Message))
        so.MarkErrorAsHandled()
    End If
    CheckChanges()
End Sub

private void SaveButton_Click(object sender, RoutedEventArgs e)
{
    _customerContext.SubmitChanges(OnSubmitCompleted, null);
}

private void RejectButton_Click(object sender, RoutedEventArgs e)
{
    _customerContext.RejectChanges();
    CheckChanges();
}

private void CustomerGrid_RowEditEnded(object sender, DataGridRowEditEndedEventArgs e)
{
    CheckChanges();
}

private void CheckChanges()
{
    EntityChangeSet changeSet = _customerContext.EntityContainer.GetChanges();
    ChangeText.Text = changeSet.ToString();

    bool hasChanges = _customerContext.HasChanges;
    SaveButton.IsEnabled = hasChanges;
    RejectButton.IsEnabled = hasChanges;
}

private void OnSubmitCompleted(SubmitOperation so)
{
    if (so.HasError)
    {
        MessageBox.Show(string.Format("Submit Failed: {0}", so.Error.Message));
        so.MarkErrorAsHandled();
    }
    CheckChanges();
}

Hiérarchie d'héritage

System.Object
System.ServiceModel.DomainServices.Client.OperationBase
System.ServiceModel.DomainServices.Client.SubmitOperation

Sécurité des threads

Tous les membres publics statiques (Partagés dans Visual Basic) de ce type sont thread-safe. Il n'est pas garanti que les membres d'instance soient thread-safe.

Plateformes

Plateformes de développement

Windows XP Édition familiale, Windows XP Professionnel, Windows Server 2003 , Windows Server 2008 et Windows 2000

Plateformes cibles

Change History

Voir aussi

Référence

Membres SubmitOperation
Espace de noms System.ServiceModel.DomainServices.Client

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