DashboardXpoDataSource Class

Namespace: DevExpress.DashboardCommon

Assembly: DevExpress.Dashboard.v20.1.Core.dll

Declaration

public class DashboardXpoDataSource :
    XPObjectSource,
    IDashboardDataSource,
    IDashboardComponent,
    IComponent,
    IDisposable,
    ISupportInitialize,
    ISupportPrefix,
    IDashboardDataSourceInternal,
    IExternalSchemaConsumer,
    IFederationDataProvider,
    IXpoDataSourceInfo,
    ICloneable<DashboardXpoDataSource>

Public Class DashboardXpoDataSource
    Inherits XPObjectSource
    Implements IDashboardDataSource,
               IDashboardComponent,
               IComponent,
               IDisposable,
               ISupportInitialize,
               ISupportPrefix,
               IDashboardDataSourceInternal,
               IExternalSchemaConsumer,
               IFederationDataProvider,
               IXpoDataSourceInfo,
               ICloneable(Of DashboardXpoDataSource)

Remarks

The DashboardXpoDataSource allows you to obtain data that XPO ((eXpress Persistent Object) retrieves from a data source.

Design Time

To connect to the XPO data source, perform the following steps.

1. Click the New Data Source button in the Data Source ribbon tab.

   

2. On the first page of the invoked Data Source Wizard dialog, select eXpress Persistent Objects (XPO) and click Next. The wizard allows you to specify the entity type.

   

   Select the Data Source Type

   

   Choose an Entity Type

Runtime

1. Instantiate the DashboardXpoDataSource object and use the ConnectionStringName property to specify the name of the connection string defined in the application configuration file.

2. Pass the persistent object type to the SetEntityType method.

The code sample below illustrates how to connect to the XPO data source.

using DevExpress.DashboardCommon;
// ...
public static DashboardXpoDataSource CreateXpoDataSource()
{
    DashboardXpoDataSource dataSource = new DashboardXpoDataSource()
    {
        ConnectionStringName = "northwind"
    };
    dataSource.SetEntityType(typeof(nwind.Customers));
    return dataSource;
}

Imports DevExpress.DashboardCommon
' ...
Public Shared Function CreateXpoDataSource() As DashboardXpoDataSource
  Dim dataSource As New DashboardXpoDataSource() With {.ConnectionStringName = "northwind"}
  dataSource.SetEntityType(GetType(nwind.Customers))
  Return dataSource
End Function