C# Class SIL.FieldWorks.Common.Widgets.FwListBox.ObjectCollection

Like ListBox, FwListBox defines an ObjectCollection class for the items in the list. This class provides a subset of the functionality of the ArrayList used to implement it. The reason for not using an ArrayList is that operations that change the contents of the list have to have side effects on the control.

Inheritance: IList, ICollection, IEnumerable, IFWDisposable

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Private Properties

Свойство	Type	Description
ClearAllItems	void
ICollection	void

Méthodes publiques

Méthode	Description
Add ( object item ) : int	Add an item to the collection and the display.
AddRange ( IEnumerable items ) : void	Add a whole collection of objects.
CheckDisposed ( ) : void	Check to see if the object has been disposed. All public Properties and Methods should call this before doing anything else.
Clear ( ) : void	Clear all items. Enhance JohnT: add the version that takes an ObjectCollection.
Contains ( object item ) : bool	See if the item is present.
Dispose ( ) : void	Must not be virtual.
GetEnumerator ( ) : IEnumerator	Get an enumerator for the list.
IndexOf ( object item ) : int	Find the zero-based position of the item, or -1 if not found.
Insert ( int index, object item ) : void	Insert the specified item at the specified position.
ObjectCollection ( IFwListBox owner ) : System	Construct empty.
ObjectCollection ( IFwListBox owner, object values ) : System	Construct with supplied initial items.
Remove ( object item ) : void
RemoveAt ( int index ) : void
this ( int index ) : object	Indexer. Set must modify the display.

Méthodes protégées

Méthode	Description
Dispose ( bool disposing ) : void	Executes in two distinct scenarios. 1. If disposing is true, the method has been called directly or indirectly by a user's code via the Dispose method. Both managed and unmanaged resources can be disposed. 2. If disposing is false, the method has been called by the runtime from inside the finalizer and you should not reference (access) other managed objects, as they already have been garbage collected. Only unmanaged resources can be disposed. If any exceptions are thrown, that is fine. If the method is being done in a finalizer, it will be ignored. If it is thrown by client code calling Dispose, it needs to be handled by fixing the bug. If subclasses override this method, they should call the base implementation.
InsertItemAtIndex ( int index, object item ) : void	Shared function for Insert and Add.

Private Methods

Méthode	Description
ClearAllItems ( ) : void
ICollection ( Array dest, int arrayIndex ) : void	Copy to a destination array.

Method Details

Add() public méthode

Add an item to the collection and the display.

public Add ( object item ) : int
item	object
Résultat	int

AddRange() public méthode

Add a whole collection of objects.

public AddRange ( IEnumerable items ) : void
items	IEnumerable
Résultat	void

CheckDisposed() public méthode

Check to see if the object has been disposed. All public Properties and Methods should call this before doing anything else.

public CheckDisposed ( ) : void
Résultat	void

Clear() public méthode

Clear all items.

Enhance JohnT: add the version that takes an ObjectCollection.

public Clear ( ) : void
Résultat	void

Contains() public méthode

See if the item is present.

public Contains ( object item ) : bool
item	object
Résultat	bool

Dispose() public méthode

Must not be virtual.

public Dispose ( ) : void
Résultat	void

Dispose() protected méthode

Executes in two distinct scenarios. 1. If disposing is true, the method has been called directly or indirectly by a user's code via the Dispose method. Both managed and unmanaged resources can be disposed. 2. If disposing is false, the method has been called by the runtime from inside the finalizer and you should not reference (access) other managed objects, as they already have been garbage collected. Only unmanaged resources can be disposed.

If any exceptions are thrown, that is fine. If the method is being done in a finalizer, it will be ignored. If it is thrown by client code calling Dispose, it needs to be handled by fixing the bug. If subclasses override this method, they should call the base implementation.

protected Dispose ( bool disposing ) : void
disposing	bool
Résultat	void

GetEnumerator() public méthode

Get an enumerator for the list.

public GetEnumerator ( ) : IEnumerator
Résultat	IEnumerator

IndexOf() public méthode

Find the zero-based position of the item, or -1 if not found.

public IndexOf ( object item ) : int
item	object
Résultat	int

Insert() public méthode

Insert the specified item at the specified position.

public Insert ( int index, object item ) : void
index	int
item	object
Résultat	void

InsertItemAtIndex() protected méthode

Shared function for Insert and Add.

protected InsertItemAtIndex ( int index, object item ) : void
index	int
item	object
Résultat	void

ObjectCollection() public méthode

Construct empty.

public ObjectCollection ( IFwListBox owner ) : System
owner	IFwListBox
Résultat	System

ObjectCollection() public méthode

Construct with supplied initial items.

public ObjectCollection ( IFwListBox owner, object values ) : System
owner	IFwListBox
values	object
Résultat	System

Remove() public méthode

public Remove ( object item ) : void
item	object
Résultat	void

RemoveAt() public méthode

public RemoveAt ( int index ) : void
index	int
Résultat	void

this() public méthode

Indexer. Set must modify the display.

public this ( int index ) : object
index	int
Résultat	object