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VideoProperties.RetrievePropertiesAsync(IIterable<String>) 方法

定義

擷取與專案相關聯的指定屬性。

public:
 virtual IAsyncOperation<IMap<Platform::String ^, Platform::Object ^> ^> ^ RetrievePropertiesAsync(IIterable<Platform::String ^> ^ propertiesToRetrieve) = RetrievePropertiesAsync;
/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<IMap<winrt::hstring, IInspectable const&>> RetrievePropertiesAsync(IIterable<winrt::hstring> const& propertiesToRetrieve);
[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<IDictionary<string,object>> RetrievePropertiesAsync(IEnumerable<string> propertiesToRetrieve);
function retrievePropertiesAsync(propertiesToRetrieve)
Public Function RetrievePropertiesAsync (propertiesToRetrieve As IEnumerable(Of String)) As IAsyncOperation(Of IDictionary(Of String, Object))

參數

propertiesToRetrieve

IIterable<String>

IEnumerable<String>

IIterable<Platform::String>

IIterable<winrt::hstring>

集合,其中包含要擷取的屬性名稱。

傳回

IAsyncOperation<IMap<String,Object>>

IAsyncOperation<IDictionary<String,Object>>

IAsyncOperation<IMap<Platform::String,Platform::Object>>

IAsyncOperation<IMap<winrt::hstring,IInspectable>>

當這個方法成功完成時,它會傳回集合 (類型 IMap) ,其中包含指定的屬性和值做為索引鍵/值組。

實作

M:Windows.Storage.FileProperties.IStorageItemExtraProperties.RetrievePropertiesAsync(System.Collections.Generic.IEnumerable{System.String}) M:Windows.Storage.FileProperties.IStorageItemExtraProperties.RetrievePropertiesAsync(System.Collections.Generic.IEnumerable{Platform::String}) M:Windows.Storage.FileProperties.IStorageItemExtraProperties.RetrievePropertiesAsync(System.Collections.Generic.IEnumerable{winrt::hstring})
屬性

備註

在 JavaScript 中,使用完成指定處理常式函式,以在傳回集合時擷取和處理集合。

適用於

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