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Lookup<TKey, TElement>.Count Property

Gets the number of key/value collection pairs in the Lookup<TKey, TElement>.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

public int Count { get; }

Property Value

Type: System.Int32
The number of key/value collection pairs in the Lookup<TKey, TElement>.

Implements

ILookup<TKey, TElement>.Count

The value of the Count property does not change because items cannot be added to or removed from a Lookup<TKey, TElement> object after it has been created.

The following example demonstrates how to use Count to determine the number of key/value collection pairs in a Lookup<TKey, TElement>. This code example is part of a larger example provided for the Lookup<TKey, TElement> class.


// Get the number of key-collection pairs in the Lookup.
int count = lookup.Count;


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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