DatabaseExtensionsToTrackingCollectionTEntity Method

This converts an enumerable list of change tracking entities to an observable collection that will notify the related data context of additions, changes, and deletions.

Definition

Namespace: EWSoftware.EntityFramework
Assembly: EWSoftware.EntityFramework (in EWSoftware.EntityFramework.dll) Version: 2025.11.12.0

C#View Source Request Example

public static TrackingObservableCollection<TEntity> ToTrackingCollection<TEntity>(
	this IEnumerable<TEntity> entities,
	DbContext dataContext
)
where TEntity : class, INotifyPropertyChanged

VBView Source Request Example

<ExtensionAttribute>
Public Shared Function ToTrackingCollection(Of TEntity As {Class, INotifyPropertyChanged}) ( 
	entities As IEnumerable(Of TEntity),
	dataContext As DbContext
) As TrackingObservableCollection(Of TEntity)

C++View Source Request Example

public:
[ExtensionAttribute]
generic<typename TEntity>
where TEntity : ref class, INotifyPropertyChanged
static TrackingObservableCollection<TEntity>^ ToTrackingCollection(
	IEnumerable<TEntity>^ entities, 
	DbContext^ dataContext
)

F#View Source Request Example

[<ExtensionAttribute>]
static member ToTrackingCollection : 
        entities : IEnumerable<'TEntity> * 
        dataContext : DbContext -> TrackingObservableCollection<'TEntity>  when 'TEntity : not struct and INotifyPropertyChanged

Parameters

entities IEnumerableTEntity: An enumerable list of the entities
dataContext DbContext: The data context that is tracking the items

Type Parameters

TEntity: The entity type

Return Value

TrackingObservableCollectionTEntity
A TrackingObservableCollectionT instance

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableTEntity. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

Important

The returned TrackingObservableCollectionT will not work if bound to Windows Forms controls. Use ToTrackingBindingListTEntity(IEnumerableTEntity, DbContext) instead.

Example

C#

using var dataContext = new MyDbContext();

bsAccounts.DataSource = dc.LoadAll<Account>().ToTrackingCollection(dataContext);