ResourceQualifierObservableMap
ResourceQualifierObservableMap
ResourceQualifierObservableMap
ResourceQualifierObservableMap
Class
Definition
Notifies listeners of dynamic changes to a map of ResourceQualifier objects, such as when items get added or removed, and allows qualifier values to change.
public : sealed class ResourceQualifierObservableMap : IIterable, IMap, IObservableMappublic sealed class ResourceQualifierObservableMap : IEnumerable, IDictionary, IObservableMapPublic NotInheritable Class ResourceQualifierObservableMap Implements IEnumerable, IDictionary, IObservableMap// You can use this class in JavaScript.
- Attributes
| Device family |
Windows 10 (introduced v10.0.10240.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced v1)
|
Remarks
Collection member lists
For JavaScript, ResourceQualifierObservableMap supports using an index to access items.
Properties
Item[TKey] Item[TKey] Item[TKey] Item[TKey]
Gets or sets the element with the specified key.
This member is not implemented in C++TValue this[TKey key] { get; set; }Property Item(key As TKey) As TValueTValue this[TKey key] { get; set; }
- key
- TKey TKey TKey TKey
The key of the element to get or set.
- Value
- TValue TValue TValue TValue
The element with the specified key.
key is null.
The property is retrieved and key is not found.
The property is set and the System.Collections.Generic.IDictionary`2 is read-only.
Keys Keys Keys Keys
Gets an System.Collections.Generic.ICollection`1 containing the keys of the System.Collections.Generic.IDictionary`2.
This member is not implemented in C++ICollection<TKey> Keys { get; }ReadOnly Property Keys As ICollection(Of TKey)ICollection<TKey> Keys { get; }
- Value
An System.Collections.Generic.ICollection`1 containing the keys of the object that implements System.Collections.Generic.IDictionary`2.
Size Size Size Size
Gets the number of ResourceQualifier objects in the observable map.
public : unsigned int Size { get; }This member is not implemented in C#This member is not implemented in VB.Net// You can use this property in JavaScript.
- Value
- unsigned int uint uint uint
The number of ResourceQualifier objects in the map.
Values Values Values Values
Gets an System.Collections.Generic.ICollection`1 containing the values in the System.Collections.Generic.IDictionary`2.
This member is not implemented in C++ICollection<TValue> Values { get; }ReadOnly Property Values As ICollection(Of TValue)ICollection<TValue> Values { get; }
- Value
An System.Collections.Generic.ICollection`1 containing the values in the object that implements System.Collections.Generic.IDictionary`2.
Methods
Add(TKey, TValue) Add(TKey, TValue) Add(TKey, TValue) Add(TKey, TValue)
Adds an element with the provided key and value to the System.Collections.Generic.IDictionary`2.
This member is not implemented in C++void Add(TKey key, TValue value)Sub Add(key As TKey, value As TValue)void Add(TKey key, TValue value)
- key
- TKey TKey TKey TKey
The object to use as the key of the element to add.
- value
- TValue TValue TValue TValue
The object to use as the value of the element to add.
key is null.
An element with the same key already exists in the System.Collections.Generic.IDictionary`2.
The System.Collections.Generic.IDictionary`2 is read-only.
Clear() Clear() Clear() Clear()
Removes all items from the observable map.
public : void Clear()This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
ContainsKey(TKey) ContainsKey(TKey) ContainsKey(TKey) ContainsKey(TKey)
Determines whether the System.Collections.Generic.IDictionary`2 contains an element with the specified key.
This member is not implemented in C++bool ContainsKey(TKey key)Function ContainsKey(key As TKey) As Booleanbool ContainsKey(TKey key)
- key
- TKey TKey TKey TKey
The key to locate in the System.Collections.Generic.IDictionary`2.
true if the System.Collections.Generic.IDictionary`2 contains an element with the key; otherwise, false.
key is null.
First() First() First() First()
Returns an iterator to enumerate the items in the observable map.
public : IIterator<IKeyValuePair<PlatForm::String, PlatForm::String>> First()This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
The iterator. The current position of the iterator is index 0, or the end of the observable map if the observable map is empty.
GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()
Returns an enumerator that iterates through the collection.
This member is not implemented in C++IEnumerator<T> GetEnumerator()Function GetEnumerator As IEnumerator(Of T)IEnumerator<T> GetEnumerator()
An enumerator that can be used to iterate through the collection.
GetView() GetView() GetView() GetView()
Returns an unchangeable view of the observable map.
public : IMapView<PlatForm::String, PlatForm::String> GetView()This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
The view of the map.
HasKey(String) HasKey(String) HasKey(String) HasKey(String)
Determines whether the observable map contains the specified key.
public : PlatForm::Boolean HasKey(PlatForm::String key)This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
- key
- PlatForm::String String String String
The key to locate in the observable map.
TRUE if the key is found, otherwise FALSE if it is not found.
Insert(String, String) Insert(String, String) Insert(String, String) Insert(String, String)
Inserts or replaces an item in the observable map.
public : PlatForm::Boolean Insert(PlatForm::String key, PlatForm::String value)This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
- key
- PlatForm::String String String String
The key associated with the item to insert.
- value
- PlatForm::String String String String
The item to insert.
TRUE if an item with the specified key is an existing item and was replaced, otherwise FALSE.
Lookup(String) Lookup(String) Lookup(String) Lookup(String)
Returns the qualifier name at the specified key in the observable map.
public : PlatForm::String Lookup(PlatForm::String key)This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
- key
- PlatForm::String String String String
The key to locate in the observable map.
The value, if an item with the specified key exists. Use the HasKey method to determine whether the key exists.
Remove(TKey) Remove(TKey) Remove(TKey) Remove(TKey)
Removes the element with the specified key from the System.Collections.Generic.IDictionary`2.
This member is not implemented in C++bool Remove(TKey key)Function Remove(key As TKey) As Booleanbool Remove(TKey key)
- key
- TKey TKey TKey TKey
The key of the element to remove.
true if the element is successfully removed; otherwise, false. This method also returns false if key was not found in the original System.Collections.Generic.IDictionary`2.
key is null.
The System.Collections.Generic.IDictionary`2 is read-only.
Remove(String) Remove(String) Remove(String) Remove(String)
Removes an item from the observable map.
public : void Remove(PlatForm::String key)This member is not implemented in C#This member is not implemented in VB.Net// You can use this method in JavaScript.
- key
- PlatForm::String String String String
The key associated with the item to remove.
Remarks
For the C# and Microsoft Visual Basic version of the Remove(String) method, see Remove.
TryGetValue(TKey, out TValue) TryGetValue(TKey, out TValue) TryGetValue(TKey, out TValue) TryGetValue(TKey, out TValue)
Gets the value associated with the specified key.
This member is not implemented in C++bool TryGetValue(TKey key, out TValue value)Function TryGetValue(key As TKey, ByRef value As TValue) As Booleanbool TryGetValue(TKey key, out TValue value)
- key
- TKey TKey TKey TKey
The key whose value to get.
- value
- TValue TValue TValue TValue
When this method returns, the value associated with the specified key, if the key is found; otherwise, the default value for the type of the value parameter. This parameter is passed uninitialized.
true if the object that implements System.Collections.Generic.IDictionary`2 contains an element with the specified key; otherwise, false.
key is null.