HttpContentHeaderCollection.Lookup(String) Method

Reference

Definition

Namespace:: Windows.Web.Http.Headers

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Edit

Finds an item in the HttpContentHeaderCollection if it exists.

public:
 virtual Platform::String ^ Lookup(Platform::String ^ key) = IMap<Platform::String ^, Platform::String ^>::Lookup;

winrt::hstring Lookup(winrt::hstring const& key);

public string Lookup(string key);

function lookup(key)

Public Function Lookup (key As String) As String

Parameters

key: String
Platform::String

winrt::hstring

The key of the item to lookup.

Returns

String

Platform::String

winrt::hstring

The value, if an item with the specified key exists. Use the HasKey method to determine whether the key exists.

Implements

Lookup(K)

Remarks

Use the HasKey method to determine whether the key exists in the HttpContentHeaderCollection.

Applies to