Partitionable |
List of items of class T. From this list partitions can be created, which basically are views inside this list, which have certain selection criterions. See remarks for details.
Inheritance HierarchySystemObject
System.Collections.ObjectModelCollectionT
System.Collections.ObjectModelObservableCollectionT
Altaxo.CollectionsPartitionableListT
Altaxo.Graph.Gdi.ShapesGraphicCollection
Altaxo.Graph.Graph3DGraphicCollection
System.Collections.ObjectModelCollectionT
System.Collections.ObjectModelObservableCollectionT
Altaxo.CollectionsPartitionableListT
Altaxo.Graph.Gdi.ShapesGraphicCollection
Altaxo.Graph.Graph3DGraphicCollection
Namespace: Altaxo.Collections
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3261.0 (4.8.3261.0)
SyntaxC#
public class PartitionableList<T> : ObservableCollection<T>
Type Parameters
- T
- Type of the items in the list.
The PartitionableListT type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | PartitionableListT | Initializes a new instance of the PartitionableListT class |
| PartitionableListT(ActionT) | Initializes a new instance of the PartitionableListT class |
Properties| Name | Description | |
|---|---|---|
 | Count | Gets the number of elements actually contained in the CollectionT. (Inherited from CollectionT) |
| Item | Gets or sets the element at the specified index. (Inherited from CollectionT) |
 | Items | Gets a IListT wrapper around the CollectionT. (Inherited from CollectionT) |
Methods| Name | Description | |
|---|---|---|
| Add | Adds an object to the end of the CollectionT. (Inherited from CollectionT) |
| AddRange | |
 | BlockReentrancy | Disallows reentrant attempts to change this collection. (Inherited from ObservableCollectionT) |
| CheckReentrancy | Checks for reentrant attempts to change this collection. (Inherited from ObservableCollectionT) |
| Clear | Removes all elements from the CollectionT. (Inherited from CollectionT) |
| ClearItems | (Overrides ObservableCollectionTClearItems) |
| Contains | Determines whether an element is in the CollectionT. (Inherited from CollectionT) |
| CopyTo | Copies the entire CollectionT to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from CollectionT) |
| CreatePartialView(FuncT, Boolean) | Creates a partial view. A partial view is a view of the list of items of the original collection, that fulfill a certain condition. |
| CreatePartialView(FuncT, Boolean, ActionT) | Creates a partial view. A partial view is a view of the list of items of the original collection, that fulfill a certain condition. |
| CreatePartialViewOfTypeM | Creates the partial view that consists of all elements in the original collection that are of type M. |
| CreatePartialViewOfTypeM(ActionM) | Creates the partial view that consists of all elements in the original collection that are of type M. |
| CreatePartialViewOfTypeM(FuncM, Boolean) | Creates the partial view that consisist of elements of type M that fullfil a given condition. |
| CreatePartialViewOfTypeM(FuncM, Boolean, ActionM) | Creates the partial view that consisist of elements of type M that fullfil a condition provided by the argument selectionCriterium. |
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object) |
| GetEnumerator | Returns an enumerator that iterates through the CollectionT. (Inherited from CollectionT) |
| GetEventDisableToken | Gets a token that will temporarily disable the CollectionChanged events from this collection. The best practice is to use this token inside a using statement, because at the end of the using statement the Dispose function of the token is called automatically, which then reenables the events. |
| GetHashCode | Serves as the default hash function. (Inherited from Object) |
| GetType | Gets the Type of the current instance. (Inherited from Object) |
| IndexOf | Searches for the specified object and returns the zero-based index of the first occurrence within the entire CollectionT. (Inherited from CollectionT) |
| Insert | Inserts an element into the CollectionT at the specified index. (Inherited from CollectionT) |
| InsertItem | (Overrides ObservableCollectionTInsertItem(Int32, T)) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object) |
| Move | Moves the item at the specified index to a new location in the collection. (Inherited from ObservableCollectionT) |
| MoveItem | (Overrides ObservableCollectionTMoveItem(Int32, Int32)) |
| NotifyPartialViewsThatHaveChanged | Notifies the partial views that have changed after each operation. |
| OnCollectionChanged | (Overrides ObservableCollectionTOnCollectionChanged(NotifyCollectionChangedEventArgs)) |
| OnPropertyChanged | Raises the PropertyChanged event with the provided arguments. (Inherited from ObservableCollectionT) |
| OnReenableEvents | |
| Remove | Removes the first occurrence of a specific object from the CollectionT. (Inherited from CollectionT) |
| RemoveAt | Removes the element at the specified index of the CollectionT. (Inherited from CollectionT) |
| RemoveItem | (Overrides ObservableCollectionTRemoveItem(Int32)) |
| SetItem | (Overrides ObservableCollectionTSetItem(Int32, T)) |
| ToString | Returns a string that represents the current object. (Inherited from Object) |
Events| Name | Description | |
|---|---|---|
 | CollectionChanged | Occurs when an item is added, removed, changed, moved, or the entire list is refreshed. (Inherited from ObservableCollectionT) |
 | PropertyChanged | Occurs when a property value changes. (Inherited from ObservableCollectionT) |
Fields| Name | Description | |
|---|---|---|
 | _actionBeforeInsertion | Defines an action that is executed before an item is inserted. The 1st argument is the item to insert. |
| _eventState | Get information whether the CollectionChanged events are enabled or disabled. |
| _partialViews | Contains all partial views that were created for this instance and are still alive. |
| _partialViewsToNotify | The partial views that need to notify after modifications that they have changed. |
Extension Methods| Name | Description | |
|---|---|---|
 | AddRangeT | (Defined by ListExtensions) |
| FillWithT | (Defined by ListExtensions) |
Remarks
Say you have two classes, A and B, both having the base class T. Then you can create a PartionableList, holding items of class A as well as items of class B.
From this list you then can create a partition, i.e. a view, that shows only items of class A, and another partition, that shows only items of class B.
These partitions support all list operations, including deletion, insertion, movement, and setting of items. These list operations are propagated to
the main list. Of course, it will cause an exception if you try to insert items of class B into the partition of class A (and vice versa). When you set
or insert an item in a partition, that item has to fulfill the selection criterion for the particular partition.
See Also