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Class ObservableDictionary<TKey, TValue>

Provides a dictionary for use with data binding.

Assembly: Meadow.dll​
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Declaration
public class ObservableDictionary<TKey, TValue> : IDictionary<TKey, TValue>, ICollection<KeyValuePair<TKey, TValue>>, IEnumerable<KeyValuePair<TKey, TValue>>, IEnumerable, INotifyCollectionChanged, INotifyPropertyChanged

Implements:
System.Collections.Generic.IDictionary<<TKey>,<TValue>>, System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<<TKey>,<TValue>>>, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<<TKey>,<TValue>>>, System.Collections.IEnumerable, System.Collections.Specialized.INotifyCollectionChanged, System.ComponentModel.INotifyPropertyChanged

Properties​

Keys​

Gets an System.Collections.Generic.ICollection%601 containing the keys of the System.Collections.Generic.IDictionary%602.

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Declaration
public ICollection<TKey> Keys { get; }

Values​

Gets an System.Collections.Generic.ICollection%601 containing the values in the System.Collections.Generic.IDictionary%602.

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Declaration
public ICollection<TValue> Values { get; }

this[TKey]​

Gets or sets the element with the specified key.

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Declaration
public TValue this[TKey key] { get; set; }

Methods​

RaisePropertyChanged(PropertyChangedEventArgs)​

Allows derived classes to raise custom property changed events.

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Declaration
protected void RaisePropertyChanged(PropertyChangedEventArgs args)
Parameters​
TypeName
System.ComponentModel.PropertyChangedEventArgsargs

Add(TKey, TValue)​

Adds an element with the provided key and value to the System.Collections.Generic.IDictionary%602.

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Declaration
public void Add(TKey key, TValue value)
Parameters​
TypeNameDescription
<TKey>keyThe object to use as the key of the element to add.
<TValue>valueThe object to use as the value of the element to add.

ContainsKey(TKey)​

Determines whether the System.Collections.Generic.IDictionary%602 contains an element with the specified key.

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Declaration
public bool ContainsKey(TKey key)
Returns​

System.Boolean: true if the System.Collections.Generic.IDictionary%602 contains an element with the key; otherwise, false.

Parameters​
TypeNameDescription
<TKey>keyThe key to locate in the System.Collections.Generic.IDictionary%602.

Remove(TKey)​

Removes the element with the specified key from the System.Collections.Generic.IDictionary%602.

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Declaration
public bool Remove(TKey key)
Returns​

System.Boolean: true if the element is successfully removed; otherwise, false. This method also returns false if <code class="paramref">key</code> was not found in the original System.Collections.Generic.IDictionary%602.

Parameters​
TypeNameDescription
<TKey>keyThe key of the element to remove.

TryGetValue(TKey, out TValue)​

Gets the value associated with the specified key.

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Declaration
public bool TryGetValue(TKey key, out TValue value)
Returns​

System.Boolean: true if the object that implements System.Collections.Generic.IDictionary%602 contains an element with the specified key; otherwise, false.

Parameters​
TypeNameDescription
<TKey>keyThe key whose value to get.
<TValue>valueWhen this method returns, the value associated with the specified key, if the key is found; otherwise, the default value for the type of the <code class="paramref">value</code> parameter. This parameter is passed uninitialized.

GetEnumerator()​

Returns an enumerator that iterates through a collection.

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Declaration
public IEnumerator GetEnumerator()
Returns​

System.Collections.IEnumerator: An System.Collections.IEnumerator object that can be used to iterate through the collection.## Events

CollectionChanged​

Event raised when the collection changes.

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Declaration
public event NotifyCollectionChangedEventHandler CollectionChanged
Event Type​

System.Collections.Specialized.NotifyCollectionChangedEventHandler

PropertyChanged​

Event raised when a property on the collection changes.

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Declaration
public event PropertyChangedEventHandler PropertyChanged
Event Type​

System.ComponentModel.PropertyChangedEventHandler

Implements​

  • System.Collections.Generic.IDictionary<<TKey>,<TValue>>
  • System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<<TKey>,<TValue>>>
  • System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<<TKey>,<TValue>>>
  • System.Collections.IEnumerable
  • System.Collections.Specialized.INotifyCollectionChanged
  • System.ComponentModel.INotifyPropertyChanged

Extension Methods​

  • System.Collections.Generic.IEnumerable{System.Collections.Generic.KeyValuePair{0,1}}.Meadow.ExtensionMethods.Contains``1(System.Collections.Generic.KeyValuePair{{TKey},{TValue}}[])
  • System.Collections.Generic.IEnumerable{System.Collections.Generic.KeyValuePair{0,1}}.Meadow.ExtensionMethods.FirstIndexOf``1(System.Collections.Generic.KeyValuePair{{TKey},{TValue}}[])