SubmitOperation 類別
代表非同步送出作業。
命名空間: System.ServiceModel.DomainServices.Client
組件: System.ServiceModel.DomainServices.Client (於 system.servicemodel.domainservices.client.dll)
使用方式
'用途
Dim instance As SubmitOperation
語法
'宣告
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
範例
下列範例示範名為 OnSubmitCompleted
的回呼方法,這個回呼方法可接受 SubmitOperation 物件當做參數。使用這個物件檢查錯誤並將錯誤標示為已處理。
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();
}
繼承階層
System.Object
System.ServiceModel.DomainServices.Client.OperationBase
System.ServiceModel.DomainServices.Client.SubmitOperation
執行緒安全性
任何這個類型的公用靜態 (在 Visual Basic 中為 共用) 成員都具備執行緒安全。 不保證任何執行個體成員安全執行緒。
平台
開發平台
Windows XP Home Edition, Windows XP Professional, Windows Server 2003 、Windows Server 2008 和 Windows 2000
目標平台
Change History
另請參閱
參考
SubmitOperation 成員
System.ServiceModel.DomainServices.Client 命名空間