Report to print MVVM

[Cynthia]

Hi, I need suport to pass my telerik report to MVVM pattern

right now my report is send to the printer, and all the programming is in xaml and their code behind:

in the user control xaml:

            <tr:ReportViewer Name="ReportViewer1" Width="0" Height="0" Grid.Column="0" Grid.Row="2">
                <tr:ReportViewer.ReportSource>
                    <telerikReporting:TypeReportSource TypeName="ReportLibrary, ReportLibrary" />
                </tr:ReportViewer.ReportSource>
            </tr:ReportViewer>

 

and in the user control code behind:

        public ucInventarioPTaVentas()
        {
            InitializeComponent();

            _InventarioVendido = new ObservableCollection<InventarioPTaVentasCL>();

            var TRS = new TypeReportSource();

            TRS.TypeName = typeof(rpMaterialVendido).AssemblyQualifiedName;
            ReportViewer1.ReportSource = TRS;

        }

        private void btnImprimir_Click(object sender, RoutedEventArgs e)
        {
            foreach (var item in grdColeccion.Items)
            {
                if (((InventarioPTaVentasCL)item).seleccionada)
                {
                    _InventarioVendido.Add((InventarioPTaVentasCL)item);
                }
            }
            
            #region ImprimeReporteDeVentas
            Report rpt;
            rpt = new rpMaterialVendido();

            rpt.DataSource = _InventarioVendido;

            Telerik.Reporting.InstanceReportSource instanceReportSource = new Telerik.Reporting.InstanceReportSource();
            instanceReportSource.ReportDocument = rpt;
            instanceReportSource.Parameters.Add("pCliente", cbClienteNombre.Text);
            ReportViewer1.ReportSource = instanceReportSource;

            ReportViewer1.PrintReport();

            #endregion
        }

 

But, for all my app, I using the MVVM pattern, obviously on my ViewModel I have the observablecollection and the parametrs needed to my report, and I don't know how make the report with the MVVM pattern, can you help me??

 

 

 

[Neli]

Hello Cynthia,

You may use the approach described in Using the WPF Report Viewer in an MVVM scenario KB article. 

The attached project demonstrates the solution.

Regards,
Neli
Progress Telerik

[Cynthia]

well, i reviewed this solution before, but, on it I don't find how i can sent the report to the printer directly, without show it at the screen, as my report case, and how I can sent the DataSource and the parameters, and I can't runner it never, the project can't charge the references, I try to charger it manually, but, don't work...

[Neli]

Hi Cynthia,

If you would like to print the report directly, without showing it in the viewer, you can use the ReportProcessor.PrintReport Method. You may choose between:

- PrintReport(ReportSource, PrinterSettings);

- PrintReport(ReportSource, PrinterSettings, String).

Regards,
Neli
Progress Telerik

[Cynthia]

ok, thanks a lot, an other more question, if I want to show the printer selecter on the screen, how I can do this?

[Neli]

Hi Cynthia,

Basically, if you don't specify the PrinterSettings or they are invalid, the Print dialog will be automatically displayed. For example:

reportProcessor.PrintReport(uriReportSource, null);

Regards,
Neli
Progress Telerik

[Cynthia]

oooohhh, ok, thank you very much... I'm stay learning...