public void ShowPreview(string serviceUri, string reportName)
        {
            ReportServicePreviewModel model = new ReportServicePreviewModel(serviceUri);

            model.ReportName = reportName;
            DocumentPreviewWindow preview = new DocumentPreviewWindow()
            {
                Model = model
            };

            model.CreateDocument();
            preview.ShowDialog();
        }
 private void CategorySubmitted(object o)
 {
     _previewModel.Parameters["Category"].Value = Category;
     _previewModel.CreateDocument();
 }