Windows Dev Center

DataPackagePropertySet.HasKey | hasKey method

Indicates whether the DataPackagePropertySet object contains a specific property.

Syntax


var boolean = dataPackagePropertySet.hasKey(key);

Parameters

key

Type: String [JavaScript] | Platform::String [C++]

The key.

Return value

Type: Boolean [JavaScript] | Platform::Boolean [C++]

True if the property set has an item with the specified key; otherwise false.

Remarks

With the DataPackagePropertySet class, use HasKey as a way to see whether the object contains a specific property. This is useful in situations where your app requires a custom property that the DataPackagePropertySet object doesn't directly support. For more info, see IMapView(String, Object).

Requirements (Windows 10 device family)

Device family

Universal

API contract

Windows.Foundation.UniversalApiContract, introduced version 1.0

Namespace

Windows.ApplicationModel.DataTransfer
Windows::ApplicationModel::DataTransfer [C++]

Metadata

Windows.Foundation.UniversalApiContract.winmd

Requirements (Windows 8.x and Windows Phone 8.x)

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows Phone 8

Namespace

Windows.ApplicationModel.DataTransfer
Windows::ApplicationModel::DataTransfer [C++]

Metadata

Windows.winmd

See also

DataPackagePropertySet

 

 

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