ValueSet 類別

  • 參考

定義

命名空間:
Windows.Foundation.Collections
編輯

使用類型為 String 的索引鍵實作對應，以及類型為 Object的值。 對象必須是 WinRT PropertyValue 或 ValueSet。 作為 PropertyValue，除了 PropertyTypeInspectableArray以外，它可以是任何類型。 此限制存在，以確保值可以串行化;透過跨進程界限的值傳遞。

注意

某些成員僅適用於指定的語言。

public ref class ValueSet 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.FoundationContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.FoundationContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class ValueSet final : IIterable<IKeyValuePair<winrt::hstring, IInspectable const&>>, IMap<winrt::hstring, IInspectable const&>, IObservableMap<winrt::hstring, IInspectable const&>, IPropertySet
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.FoundationContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.FoundationContract")]
class ValueSet 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.FoundationContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.FoundationContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class ValueSet : IDictionary<string,object>, IEnumerable<KeyValuePair<string,object>>, IObservableMap<string,object>, IPropertySet
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.FoundationContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.FoundationContract")]
public sealed class ValueSet : IDictionary<string,object>, IEnumerable<KeyValuePair<string,object>>, IObservableMap<string,object>, IPropertySet
function ValueSet()
Public NotInheritable Class ValueSet
Implements IDictionary(Of String, Object), IEnumerable(Of KeyValuePair(Of String, Object)), IObservableMap(Of String, Object), IPropertySet
繼承
Object Platform::Object IInspectable ValueSet
屬性
ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute
實作
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

Windows 需求

裝置系列
Windows 10 (已於 10.0.10240.0 引進)
API contract
Windows.Foundation.FoundationContract (已於 v1.0 引進)

建構函式

ValueSet()

建立並初始化屬性集的新實例。

屬性

Size

取得值集中包含的項目數目。

方法

Clear()

從值集中移除所有專案。
First()

傳回反覆運算器，以列舉值集中的專案。
GetView()

取得值集的不可變檢視。
HasKey(String)

指出值集是否有具有指定索引鍵的專案。
Insert(String, Object)

將專案加入至值集。
Lookup(String)

擷取指定索引鍵的值。
Remove(String)

從值集合中移除專案。

事件

MapChanged

發生於可觀察的地圖已變更時。

適用於

另請參閱