EntityServerModeDataSource Class

A data source that can be associated with the Entity Framework source.

Assembly: DevExpress.Web.v18.2.dll

Declaration

C#
VB.NET

public class EntityServerModeDataSource :
    DataSourceControl

Public Class EntityServerModeDataSource
    Inherits DataSourceControl

Remarks

The EntityServerModeDataSource component allows you to bind the ASPxCardView, ASPxGridView, ASPxVerticalGrid, ASPxComboBox and ASPxPivotGrid controls to a data source via the Entity Framework, and enable the database server mode. To do this, follow the steps listed below:

use the EntityServerModeDataSource.ContextTypeName property to specify the type of objects retrieved from a data source;
use the EntityServerModeDataSource.TableName property to specify the table name;
bind the ASPxGridView to the EntityServerModeDataSource component.

Important

To use the Server Mode with Entity Framework 6+, it is necessary to use special options on the application startup. To learn more, see the Knowledge Base Article: Is it possible to use the Entity Framework 6 and Server Mode together.

Online Demos

WebForms:

MVC:

Example

The following example illustrates how to use the EntityServerModeDataSource component.

<dx:ASPxGridView ID="grid" ClientInstanceName="grid" runat="server" KeyFieldName="ID"
     Width="100%" AutoGenerateColumns="False" OnCustomColumnDisplayText="grid_CustomColumnDisplayText"
     OnSummaryDisplayText="grid_SummaryDisplayText">
    <Columns>
        <dx:GridViewDataTextColumn FieldName="From" Width="200px" />
        <dx:GridViewDataTextColumn FieldName="Subject" />
        <dx:GridViewDataDateColumn FieldName="Sent" Width="100px" />
        <dx:GridViewDataCheckColumn Caption="Attachment?" FieldName="HasAttachment" Width="100px" />
        <dx:GridViewDataTextColumn FieldName="Size" Width="80px">
            <Settings AllowAutoFilter="false" />
        </dx:GridViewDataTextColumn>
    </Columns>
</dx:ASPxGridView>
<dx:EntityServerModeDataSource ID="EntityServerModeDataSource" runat="server" 
    ContextTypeName="DevExpress.Web.Demos.LargeDatabaseContext" TableName="Emails" />