XPObjectSpaceProviderBuilderExtensions.AddXpo<TContext>(IObjectSpaceProviderBuilder<TContext>, Action<XafApplication, XPObjectSpaceProviderOptions>) Method

Adds the XPObjectSpaceProvider to your WinForms application.

Namespace: DevExpress.ExpressApp.ApplicationBuilder

Assembly: DevExpress.ExpressApp.Xpo.v24.2.dll

NuGet Package: DevExpress.ExpressApp.Xpo

Declaration

C#

public static IObjectSpaceProviderBuilder<TContext> AddXpo<TContext>(
    this IObjectSpaceProviderBuilder<TContext> builder,
    Action<XafApplication, XPObjectSpaceProviderOptions> configureOptions
)
    where TContext : IXafApplicationBuilder<TContext>, IAccessor<IServiceCollection>

VB.NET

<ExtensionAttribute>
Public Shared Function AddXpo(Of TContext As {IXafApplicationBuilder(Of TContext), IAccessor(Of IServiceCollection)})(
    builder As IObjectSpaceProviderBuilder(Of TContext),
    configureOptions As Action(Of XafApplication, XPObjectSpaceProviderOptions)
) As IObjectSpaceProviderBuilder(Of TContext)

Parameters

Name	Type	Description
builder	IObjectSpaceProviderBuilder<TContext>	Allows you to register and configure Object Space Providers in your application, and chain further provider registrations.
configureOptions	Action<XafApplication, XPObjectSpaceProviderOptions>	Options that you can use to configure the XPO Object Space Provider.

Type Parameters

Name	Description
TContext	The IWinApplicationBuilder type.

Returns

Type	Description
IObjectSpaceProviderBuilder<TContext>	Allows you to register and configure Object Space Providers in your application, and chain further provider registrations.

Remarks

The following example demonstrates how to use this method:

File: MySolution.Win\Startup.cs.

C#

using DevExpress.ExpressApp.ApplicationBuilder;
using DevExpress.ExpressApp.Win.ApplicationBuilder;
// ...
public class ApplicationBuilder : IDesignTimeApplicationFactory {
    public static WinApplication BuildApplication(string connectionString) {
        var builder = WinApplication.CreateBuilder();
        builder.UseApplication<MySolutionWindowsFormsApplication>();
        builder.ObjectSpaceProviders
            .AddXpo((application, options) => {
                options.ConnectionString = connectionString;
            })
            .AddNonPersistent();
    }
    // ...
}