IReadOnlyDictionary<TKey, TValue>.Item Property
Gets the element that has the specified key in the read-only dictionary.
Assemblies: mscorlib (in mscorlib.dll)
System.Runtime (in System.Runtime.dll)
This property lets you access a specific element in the collection by using the following syntax: myCollection[key] (myCollection(key) in Visual Basic).
Implementations can vary in how they determine the equality of objects: for example, the class that implements IReadOnlyDictionary<TKey, TValue> might use the Comparer<T>.Default property, or it might implement the IComparer<T> method.
Implementations can vary in whether they allow key to be null.
Windows Phone 8.1, Windows Phone 8
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.