ReadOnlyDictionary<TKey,TValue> Class

System.Collections.ObjectModel

Represents a read-only collection of key/value pairs that is accessible by an index.

Syntax


                public class ReadOnlyDictionary<TKey,TValue> : IReadOnlyDictionary<TKey,TValue>, IEnumerable<KeyValuePair<TKey,TValue>>, IEnumerable

public ReadOnlyDictionary (IDictionary<TKey,TValue> dictionary)

Initializes a new instance of the ReadOnlyDictionary<TKey,TValue> class that uses the specified dictionary as the underlying store.
public ReadOnlyDictionary (IReadOnlyDictionary<TKey,TValue> dictionary)

Initializes a new instance of the ReadOnlyDictionary<TKey,TValue> class that uses the specified IReadOnlyDictionary<TKey,TValue> as the underlying store.

public Count int { get; }

Gets the number of elements contained in the ReadOnlyDictionary<TKey,TValue>.
public Keys IReadOnlyCollection<TKey> { get; }

Gets an IReadOnlyCollection<TKey> that contains the keys in the dictionary.
public Values IReadOnlyCollection<TValue> { get; }

Gets an IReadOnlyCollection<TValue> that contains the values in the dictionary.

public ContainsKey (TKey key) bool

Determines whether the dictionary contains an element with the specified key.
public GetEnumerator IEnumerator<KeyValuePair<TKey,TValue>>

Returns an enumerator that iterates through the dictionary.
public TryGetValue (TKey key, out TValue value) bool

Gets the value associated with the specified key.
public TryAdd (TKey key, TValue value) bool

Attempts to add the specified key and value to the dictionary.
public Remove (TKey key) bool

Removes the element with the specified key from the dictionary.
public Clear void

Removes all keys and values from the dictionary.
public Contains (KeyValuePair<TKey,TValue> keyValuePair) bool

Determines whether the dictionary contains the specified key/value pair.
public GetHashCode int

Serves as a hash function for the current object.
public ToString string

Returns a string that represents the current object.
public Equals (object obj) bool

Determines whether the specified object is equal to the current object.
protected Finalize void

Allows an object to attempt to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

IReadOnlyDictionary<TKey,TValue>

Represents a generic read-only collection of key/value pairs.
IEnumerable<KeyValuePair<TKey,TValue>>

Exposes an enumerator, which supports a simple iteration over a collection of a specified type.
IEnumerable

Exposes an enumerator, which supports a simple iteration over a collection that does not support generic type parameters.

There are no public derived classes that extend ReadOnlyDictionary<TKey,TValue> in the .NET libraries.