Stimulsoft Business Intelligence System | Forum

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Stimulsoft.Report.StiOptions.Silverlight.WCFService.UseWCFService = true;
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        private void WCFService_WCFExportDocument(object sender, Stimulsoft.Report.Events.StiWCFExportEventArgs e)
        {
            if (sender != this.viewer)
                return;

            string exportFilter = e.Filter;
            (sender as Stimulsoft.Report.Viewer.StiSLViewerControl).StartProgressInformation("In progress", "Exporting", Visibility.Visible);

            var serv = new ReportServ(); //remote WCF service wrapper

            InvokeOperation<byte[]> result = serv.ExportDocument(e.Xml); //Export (server-side)

            result.Completed += (send, args) =>
            {
                (sender as Stimulsoft.Report.Viewer.StiSLViewerControl).CloseProgressInformation();
                service_ExportDocumentCompleted(send, new ExportDocumentCompletedArgs(result.Value, result.Error), exportFilter);
            };

        }

        private void service_ExportDocumentCompleted(object sender, ExportDocumentCompletedArgs e, string exportFilter)
        {
            if (e.Error == null && e.Result != null)
            {
                //SaveFileDialog could be launched by UI-event only (user click)
                //So intermediate dlg with button required
                var window = new SaveWindow();
                window.OKButton.Click += delegate
                {
                    window.Close();

                    SaveFileDialog saveFileDialog = new SaveFileDialog
                    {
                        Filter = string.Format("Document export (*.{0})|*.{0}", exportFilter)
                    };

                   saveFileDialog.DefaultFileName = CurrentReportName;

                    if (saveFileDialog.ShowDialog() == true)
                    {
                        var stream = saveFileDialog.OpenFile() as FileStream;
                        stream.Write(e.Result, 0, e.Result.Length);

                        stream.Flush();
                        stream.Close();
                        stream.Dispose();
                    }
                };

                window.Show();
            }
        }