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Wizard Customization Overview

The Report Wizard allows you to create new reports and customize existing ones in the End-User Report Designer. The Report Wizard includes Data Source Wizard pages for binding a report to data and adds extra pages for configuring the report layout.

Wizard Structural Elements

The Wizard architecture conforms to the MVP (Model-View-Presenter) design pattern and includes the following structural elements:

  • Presenter

    A page Presenter defines the logic to initialize a page, process data on this page and pass the data between a View and Model.

    Each page Presenter should descend from the abstract WizardPageBase<TView, TModel> class (from the DevExpress.Data.WizardFramework namespace). The TView and TModel type parameters allow you to associate the page Presenter with an appropriate View and Model.

    class MyCustomPage<TModel> : WizardPageBase<IMyPageView, TModel> {
        // ...
    }
    
  • View

    A page View relies on the MVVM design pattern. Each View consists of a ViewModel that processes data that is displayed in the user interface and a XAML template that defines the page's visual appearance and layout.

    A ViewModel should inherit the WizardPageBase class (from the DevExpress.Xpf.DataAccess.DataSourceWizard namespace) and implement the corresponding View interface.

    public class MyPageViewModel : DevExpress.Xpf.DataAccess.DataSourceWizard.WizardPageBase, IMyPageView {
       // ...
    }
    

    The XAML template should reference the corresponding ViewModel type by a Key.

    <DataTemplate x:Key="{x:Type dxrew:MyPageViewModel }"> 
      <Label Content="Page Content" /> 
    </DataTemplate>
    
  • Model

    The ReportModel class stores settings defined on the Report Wizard pages. The XtraReportModel class accumulates these settings and data-related settings specified on the Data Source Wizard pages.

    Override the Equals method to take all the model settings into account when you create a model descendant and add custom fields to it.

You can create a custom wizard page using the following approaches:

  • Provide your custom appearance for a specific wizard page by creating a XAML template with the required ViewModel type referenced by a Key. The specified Key is used to locate the corresponding template automatically.
  • Customize an existing wizard page by inheriting from its Presenter and View objects.

    The following documents list the default page Presenters and Views used in the Data Source and Report wizards:

  • Create a custom wizard page from scratch by implementing a page Presenter, View, and Model (optional). Inherit the page Presenter from the abstract WizardPageBase<TView, TModel> class (the DevExpress.Data.WizardFramework namespace). To implement the View, inherit a ViewModel from the WizardPageBase class (the DevExpress.Xpf.DataAccess.DataSourceWizard namespace) and write a XAML template. To add custom fields to the Model, create the XtraReportModel class descendant.

Wizard Customization API

You can customize the Report and/or Data Source Wizard by implementing the IWizardCustomizationService interface, which provides the following four methods:

Both the CustomizeDataSourceWizard and CustomizeReportWizard methods receive two arguments:

To apply the wizard customization, assign your custom IWizardCustomizationService instance to the ReportDesignerBase.ServicesRegistry property.

Code Examples

The following code examples demonstrate how to customize the Report Wizard: