VideoProperties.RetrievePropertiesAsync(IIterable<String>) 方法

定义

命名空间:

Windows.Storage.FileProperties

检索与项关联的指定属性。

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))

参数

propertiesToRetrieve

IIterable<String>

IEnumerable<String>

IIterable<Platform::String>

IIterable<winrt::hstring>

包含要检索的属性的名称的集合。

返回

IAsyncOperation<IMap<String,Object>>

IAsyncOperation<IDictionary<String,Object>>

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

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

此方法成功完成后，它将返回一个集合 (类型 IMap) ，其中包含指定的属性和值作为键值对。

实现

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})

属性

RemoteAsyncAttribute

注解

在 JavaScript 中，使用 then 或 done 指定处理程序函数，这些函数将在返回集合时捕获和处理集合。

另请参阅

• IMap<K,V>