ApplicationData.DataChanged 事件

定义

命名空间:

Windows.Storage

同步漫游应用程序数据时发生。

// Register
event_token DataChanged(TypedEventHandler<ApplicationData, IInspectable const&> const& handler) const;

// Revoke with event_token
void DataChanged(event_token const* cookie) const;

// Revoke with event_revoker
ApplicationData::DataChanged_revoker DataChanged(auto_revoke_t, TypedEventHandler<ApplicationData, IInspectable const&> const& handler) const;

public event TypedEventHandler<ApplicationData,object> DataChanged;

function onDataChanged(eventArgs) { /* Your code */ }
applicationData.addEventListener("datachanged", onDataChanged);
applicationData.removeEventListener("datachanged", onDataChanged);
- or -
applicationData.ondatachanged = onDataChanged;

Public Custom Event DataChanged As TypedEventHandler(Of ApplicationData, Object) 

事件类型

TypedEventHandler<ApplicationData,Object>

TypedEventHandler<ApplicationData,IInspectable>

示例

此示例注册 DataChanged 事件。

void InitHandlers()
{
   Windows.Storage.ApplicationData.Current.DataChanged += 
      new TypedEventHandler<ApplicationData, object>(DataChangeHandler);
}

void DataChangeHandler(Windows.Storage.ApplicationData appData, object o)
{
   // TODO: Refresh your data
}

void MainPage::InitHandlers()
{
    Windows::Storage::ApplicationData::Current().DataChanged({ this, &MainPage::DataChangeHandler });
}

void MainPage::DataChangeHandler(Windows::Storage::ApplicationData const& /* appData */, Windows::Foundation::IInspectable const& /* object */)
{
    // TODO: Refresh your data.
}

void MainPage::InitHandlers()
{
   Windows::Storage::ApplicationData::Current->DataChanged += 
      ref new TypedEventHandler<Windows::Storage::ApplicationData^, Object^>
      (this, &MainPage::DataChangeHandler);
}

void MainPage::DataChangeHandler(Windows::Storage::ApplicationData^ appData, Object^)
{
   // TODO: Refresh your data
}

Private Sub InitHandlers()
    AddHandler Windows.Storage.ApplicationData.Current.DataChanged, AddressOf DataChangeHandler
End Sub

Private Sub DataChangeHandler(ByVal appData As Windows.Storage.ApplicationData, ByVal o As Object)
    ' TODO: Refresh your data
End Sub

注解

事件处理程序接收 ApplicationData 对象，该对象提供对更改的漫游数据容器的访问权限。 有关详细信息，请参阅 漫游数据。

另请参阅

• 漫游数据