Print multiple reports directly to printer from Silverlight

[HDC]

I'm creating an invoicing system that should be able to print multiple invoices without viewing them and with the same printer settings.

To enable this scenario i need to be able to pop up a printer dialog form and then i need to be able to use those setting to print multiple reports directly to the selected printer.

Is this possible with Telerik reporting and if so can somebody direct me to some sample code?

[Steve]

Hi Peter,

Being able to print a report without the viewer is a valid case so we will think about extending the existing functionality to allow this. For the moment the only way to print reports from Silverlight is by using the Silverlight report viewer.
You get the model from the viewer's first child. Here is a sample snippet that illustrates the approach:

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public partial class MainPage : UserControl
{
    public MainPage()
    {
        InitializeComponent();
    }

    void button1_Click(object sender, RoutedEventArgs e)
    {
        this.ReportViewer1.PrintReport();
    }
}

static class ReportViewerExtensions
{
    public static void PrintReport(this ReportViewer reportViewer)
    {
        var layoutRoot = (FrameworkElement)VisualTreeHelper.GetChild(reportViewer, 0);
        var viewerModel = (ReportViewerModel)layoutRoot.DataContext;
        var printCommand = viewerModel.PrintReportCommand;
        if (printCommand.CanExecute(null))
        {
            printCommand.Execute(null);
        }
    }
}

Hope it helps.

Best wishes,
Steve
the Telerik team

[ismail]

var layoutRoot = (FrameworkElement)VisualTreeHelper.GetChild(reportViewer, 0); 
dont work. 
VisualTreeHelper.GetChildrenCount(this.ReportViewer1) result is zero.


please help

[Peter]

Hi ismail,

Did you set the ReportViewer.Visibility property to Collapsed? If this is the case have in mind that the control's visual tree is not created in this case. Instead if you want to hide the report viewer you have to set the ReportViewer.Height/Width to 0. Additionally have in mind that the suggested approach will only work for the  true print functionality. Thus our suggestion is to set the ReportViewer.UseNativePrinting to False.

<telerik:ReportViewer Grid.Row="1" x:Name="ReportViewer1"
                      UseNativePrinting="False"
                      Width="0"
                      Height="0"
                      ReportServiceUri="../ReportService.svc"
                      Report="Telerik.Reporting.Examples.CSharp.ReportCatalog, CSharp.ReportLibrary" />

Another approach you can utilize is elaborated in the following forum thread.

Regards,
Peter
the Telerik team