Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

HttpResponseHeaderCollection.Lookup | lookup method

Applies to Windows and Windows Phone

Lookup an item in the HttpResponseHeaderCollection.

Syntax


var string = httpResponseHeaderCollection.lookup(key);

Parameters

key

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

The key of the item to lookup.

Return value

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

The value of the item if found.

Remarks

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

When building Windows Store apps with the Microsoft .NET Framework, this method is hidden and developers should use the System.Collections.Generic.IDictionary<K,V> interface.

Requirements

Minimum supported client

Windows 8.1

Minimum supported server

Windows Server 2012 R2

Minimum supported phone

Windows Phone 8.1 [Windows Phone Silverlight 8.1 and Windows Runtime apps]

Namespace

Windows.Web.Http.Headers
Windows::Web::Http::Headers [C++]

Metadata

Windows.winmd

See also

HttpResponseHeaderCollection

 

 

Show:
© 2014 Microsoft