How to Use the DocumentPreviewControl in a WPF MVVM Application to Preview a Report

This example demonstrates how to bind the [DocumentPreviewControl.DocumentSource](https://docs.devexpress.com/WPF/DevExpress.Xpf.DocumentViewer.DocumentViewerControl.DocumentSource property to the report source in the ViewModel. The project implements a command to show the report preview in a modal window. In this example the reports are stored in the SQLite database.

The ReportCatalogViewModel view model retrieves reports from a database and defines the following commands:

• ShowReport. Assigns a report instance to the view model property bound to the DocumentViewerControl.DocumentSource property.
• ShowPreviewInNewWindow. Creates the DocumentPreviewDialogViewModel view model instance that contains the current report. Uses the DialogService to show the modal window with the report preview.

Files to Look At

• MainWindow.xaml (MainWindow.xaml)
• ReportCatalogViewModel.cs (ReportCatalogViewModel.vb)
• DocumentPreviewDialogViewModel.cs (DocumentPreviewDialogViewModel.vb)

Documentation

• Document Preview API and Customization
• Quick Guide to Print Preview Customization
• DevExpress MVVM Framework

More Examples

• How to load the saved XtraReport document (*.prnx) in DocumentPreview