Cannot load document

[Nebojsa]

Hi,
Can You please tell me why this code is not working. In code behind:

private void Button_Click(object sender, RoutedEventArgs e)

        {

            OpenFileDialog ofd = new OpenFileDialog();

             

            ofd.Filter = "Pdf-Dateien (*.pdf)|*.pdf";

 

            if (ofd.ShowDialog() == true)

            {

 

                this.documentStream = new FileStream(ofd.FileName, FileMode.Open);

                RadFixedDocument doc = new PdfFormatProvider(this.documentStream, FormatProviderSettings.ReadOnDemand).Import();

 

                this.pdfViewer.Document = doc;

 

            }

        }
and in XAML:

<telerik:RadPdfViewer Grid.Row="1" x:Name="pdfViewer" Grid.ColumnSpan="2"/>

System report no errors, simply nothing is showing in viewer.

Best Regards
Nebojsa Danilovic