C1DataSource Class

A data source control that simplifies data binding of GUI controls to data in a EntityClientCache. Can be used to bind multiple controls to different queries.

Inheritance

object

MarshalByRefObject

Component

C1DataSource

Implements

INotifyPropertyChanged

Namespace: C1.Win.Data.Entities

Assembly: C1.Win.Data.Entity.4.8.dll

Syntax

[ToolboxBitmap(typeof(C1DataSource), "C1DataSource.png")]
public class C1DataSource : Component, IComponent, IDisposable, ISupportInitialize, IListSource, IExtenderProvider, INotifyPropertyChanged

<ToolboxBitmap(GetType(C1DataSource), "C1DataSource.png")>
Public Class C1DataSource
    Inherits Component
    Implements IComponent, IDisposable, ISupportInitialize, IListSource, IExtenderProvider, INotifyPropertyChanged

Remarks

To bind a control to data in an EntityClientCache, put a C1DataSource on your form, specify the context type, populate the ViewSources collection with EntityViewSource objects to define views (based on queries), and bind the GUI control to the C1DataSource by setting the GUI control's DataSource and DataMember properties.

Constructors

Name	Description
C1DataSource()	Initializes a new instance of the C1DataSource class.

Properties

Name	Description
ClientCache	Gets or sets the EntityClientCache used by this C1DataSource to access the data.
ClientScope	Gets the client scope to which this C1DataSource belongs.
ContextType	Gets or sets the type of a System.Data.Entity.DbContext or an System.Data.Objects.ObjectContext used to obtain the default client cache.
DbContext	Gets the System.Data.Entity.DbContext the ClientCache is connected to.
this[int]	Gets the ClientCollectionView of the EntityViewSource at the specified `index` in the ViewSources collection.
this[string]	Gets the ClientCollectionView of the EntityViewSource with the specified `name` in the ViewSources collection.
ObjectContext	Gets the System.Data.Objects.ObjectContext the ClientCache is connected to.
RefreshInterval	Gets or sets the interval between automatic Refresh() operations to refresh the data with any changes that may have occurred on the server.
ViewSources	Gets a collection of EntityViewSource objects that define views (based on queries) in this C1DataSource.

Methods

Name	Description
BeginInit()
EndInit()
GetControlHandler(Control)	Gets the control handler the specified `control` is currently handled by.
Load()	Loads all EntityViewSource objects in the ViewSources collection.
Refresh()	Refreshes all EntityViewSource objects in the ViewSources collection.
RejectChanges()	Rejects the changes for every entity in the context.
SaveChanges()	Persists all changes to the server.
SetControlHandler(Control, ControlHandler)	Connects a `controlHandler` to a given `control`.

Events

Name	Description
SavedChanges	Occurs after a save operation is completed.
SavingChanges	Occurs before changes are saved.