ApplicationDataCompositeValue Класс

Определение

public ref class ApplicationDataCompositeValue sealed : IIterable<IKeyValuePair<Platform::String ^, Platform::Object ^> ^>, IMap<Platform::String ^, Platform::Object ^>, IObservableMap<Platform::String ^, Platform::Object ^>, IPropertySet

/// [Windows.Foundation.Metadata.Activatable(65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.MTA)]
class ApplicationDataCompositeValue final : IIterable<IKeyValuePair<winrt::hstring, IInspectable const&>>, IMap<winrt::hstring, IInspectable const&>, IObservableMap<winrt::hstring, IInspectable const&>, IPropertySet

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.MTA)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
class ApplicationDataCompositeValue final : IIterable<IKeyValuePair<winrt::hstring, IInspectable const&>>, IMap<winrt::hstring, IInspectable const&>, IObservableMap<winrt::hstring, IInspectable const&>, IPropertySet

[Windows.Foundation.Metadata.Activatable(65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.MTA)]
public sealed class ApplicationDataCompositeValue : IDictionary<string,object>, IEnumerable<KeyValuePair<string,object>>, IObservableMap<string,object>, IPropertySet

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.MTA)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class ApplicationDataCompositeValue : IDictionary<string,object>, IEnumerable<KeyValuePair<string,object>>, IObservableMap<string,object>, IPropertySet

function ApplicationDataCompositeValue()

Public NotInheritable Class ApplicationDataCompositeValue
Implements IDictionary(Of String, Object), IEnumerable(Of KeyValuePair(Of String, Object)), IObservableMap(Of String, Object), IPropertySet

Наследование

Object Platform::Object IInspectable ApplicationDataCompositeValue

Атрибуты

ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Реализации

IMap<K,V> IDictionary<K,V> IMap<String,Object> IDictionary<String,Object> IMap<Platform::String,Platform::Object> IMap<winrt::hstring,IInspectable> IIterable<IKeyValuePair<K,V>> IEnumerable<KeyValuePair<K,V>> IIterable<IKeyValuePair<String,Object>> IEnumerable<KeyValuePair<String,Object>> IIterable<IKeyValuePair<Platform::String,Platform::Object>> IIterable<IKeyValuePair<winrt::hstring,IInspectable>> IObservableMap<String,Object> IObservableMap<Platform::String,Platform::Object> IObservableMap<winrt::hstring,IInspectable> IPropertySet

Требования к Windows

Примеры

В этом примере создается и считывается составной параметр с именем exampleCompositeSetting.

Вызовите метод Remove , чтобы удалить exampleCompositeSetting параметр после завершения работы с ним.

Windows.Storage.ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;

// Create a composite setting

Windows.Storage.ApplicationDataCompositeValue composite = new Windows.Storage.ApplicationDataCompositeValue();
composite["intVal"] = 1;
composite["strVal"] = "string";

localSettings.Values["exampleCompositeSetting"] = composite;

// Read data from a composite setting

Windows.Storage.ApplicationDataCompositeValue composite = 
   (Windows.Storage.ApplicationDataCompositeValue)localSettings.Values["exampleCompositeSetting"];

if (composite == null)
{
   // No data
}
else
{
   // Access data in composite["intVal"] and composite["strVal"]
}

// Delete a composite setting

localSettings.Values.Remove("exampleCompositeSetting");

Windows::Storage::ApplicationDataContainer localSettings{
    Windows::Storage::ApplicationData::Current().LocalSettings() };
auto values{ localSettings.Values() };

{
    // Create a composite setting.
    Windows::Storage::ApplicationDataCompositeValue composite;
    composite.Insert(L"intVal", Windows::Foundation::PropertyValue::CreateInt32(1));
    composite.Insert(L"strVal", Windows::Foundation::PropertyValue::CreateString(L"string"));
    values.Insert(L"exampleCompositeSetting", composite);
}

{
    // Read data from a composite setting.
    Windows::Storage::ApplicationDataCompositeValue composite{ values.Lookup(L"exampleCompositeSetting").as<Windows::Storage::ApplicationDataCompositeValue>() };
    if (composite == nullptr)
    {
        // No data
    }
    else
    {
        int32_t one{ winrt::unbox_value<int32_t>(composite.Lookup(L"intVal")) };
        winrt::hstring hello{ winrt::unbox_value<winrt::hstring>(composite.Lookup(L"strVal")) };
    }
}

// Delete a composite setting.
values.Remove(L"exampleCompositeSetting");

ApplicationDataContainer^ localSettings = ApplicationData::Current->LocalSettings;

// Create a composite setting

ApplicationDataCompositeValue^ composite = ref new ApplicationDataCompositeValue();
composite->Insert("intVal", dynamic_cast<PropertyValue^>(PropertyValue::CreateInt32(1)));
composite->Insert("strVal", dynamic_cast<PropertyValue^>(PropertyValue::CreateString("string")));

auto values = localSettings->Values;
values->Insert("exampleCompositeSetting", composite);

// Read data from a composite setting

composite = safe_cast<ApplicationDataCompositeValue^>(localSettings->Values->Lookup("exampleCompositeSetting"));

if (composite == nullptr)
{
   // No data
}
else
{
   int one = safe_cast<IPropertyValue^>(composite->Lookup("intVal"))->GetInt32();
   String^ hello = safe_cast<String^>(composite->Lookup("strVal"));
}

// Delete a composite setting

values->Remove("exampleCompositeSetting");

Dim localSettings As Windows.Storage.ApplicationDataContainer = Windows.Storage.ApplicationData.Current.LocalSettings

' Create a composite setting

Dim composite As New Windows.Storage.ApplicationDataCompositeValue
composite("intVal") = 1
composite("strVal") = "string";

localSettings.Values("exampleCompositeSetting") = composite

' Read data from a composite setting

Dim composite As Windows.Storage.ApplicationDataCompositeValue = 
   CType(localSettings.Values("exampleCompositeSetting"), Windows.Storage.ApplicationDataCompositeValue)

If composite Is Nothing Then
   ' No data
Else
   ' Access data in composite("intVal") and composite("strVal")
End If

' Delete a composite setting

localSettings.Values.Remove("exampleCompositeSetting")

Комментарии

Составной параметр сериализуется путем его вставки в карту параметров и десериализации путем его просмотра на карте.

Списки элементов коллекции

Для JavaScript ApplicationDataCompositeValue поддерживает использование индекса для доступа к элементам.

Конструкторы

Свойства

Методы

События

Применяется к

См. также раздел

• ApplicationData
• ApplicationDataContainer
• ApplicationDataContainerSettings
• Хранение и извлечение параметров и прочих данных приложения
• Пример данных приложения