EntityServerModeSource Class

The data source for the GridControl, PivotGridControl and SearchLookUpEdit that binds these controls to Entity Framework 4+ model classes in server mode.

Namespace: DevExpress.Data.Linq

Assembly: DevExpress.Data.v18.1.dll

Declaration

C#

[ToolboxTabName("DX.18.1: Data & Analytics")]
[ToolboxBitmap(typeof(ResFinder), "Bitmaps256.EntityServerModeSource.bmp")]
public class EntityServerModeSource :
    Component,
    IListSource,
    ISupportInitialize,
    ILinqServerModeFrontEndOwner,
    IDXCloneable

VB.NET

<ToolboxBitmap(GetType(ResFinder), "Bitmaps256.EntityServerModeSource.bmp")>
<ToolboxTabName("DX.18.1: Data & Analytics")>
Public Class EntityServerModeSource
    Inherits Component
    Implements IListSource,
               ISupportInitialize,
               ILinqServerModeFrontEndOwner,
               IDXCloneable

Remarks

Server mode allows a data-aware control to rapidly work with large datasets. Loading records in small portions on demand and performing data-aware operations on the data server side are the key features of server mode. When the control needs to display a specific portion of data, it calls a specific method of the bound server mode data source. This method sends a corresponding request to the data store, and upon receiving the results, passes them back to the control. The EntityServerModeSource component implements the IListSource interface, and can be used as a data source for a control supporting the server mode feature.

Use EntityServerModeSource to bind a server-mode enabled control to Entity Framework 4+ model classes. To see an example, refer to the Entity Framework 4.0+ Server Mode help topic.

Note

EntityServerModeSource is a read-only data source.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the EntityServerModeSource class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-use-dxgrid-in-server-mode-with-entity-framework-40-e2425/CS/MainWindow.xaml.cs#L24

}
grid.ItemsSource = new EntityServerModeSource() {
    ElementType = typeof(Product),

VB.NET

how-to-use-dxgrid-in-server-mode-with-entity-framework-40-e2425/VB/MainWindow.xaml.vb#L24

    End Try
    grid.ItemsSource = New EntityServerModeSource() With {.ElementType = GetType(Product), .KeyExpression = "ProductID", .QueryableSource = dataContext_Renamed.Products}
End Sub

Inheritance

Object

MarshalByRefObject

Component

EntityServerModeSource