private void previewFile_Click(object sender, System.EventArgs e)
        {
            try
            {
                Canguro.Commands.Forms.PrintPreview printPreviewDialog = new Canguro.Commands.Forms.PrintPreview();

                PrintDocument doc = (PrintDocument)sender;
                doc.DefaultPageSettings.Landscape = Canguro.View.Printer.Instance.IsOrientedLandscape;

                printPreviewDialog.ShowDialog(doc);

                printPreviewDialog.Dispose();
                printPreviewDialog = null;
            }
            catch (Exception exp)
            {
                System.Console.WriteLine(exp.Message.ToString());
            }
        }
        private void previewFile_Click(object sender, System.EventArgs e)
        {
            try
            {
                Canguro.Commands.Forms.PrintPreview printPreviewDialog = new Canguro.Commands.Forms.PrintPreview();

                PrintDocument doc = (PrintDocument)sender;
                doc.DefaultPageSettings.Landscape = Canguro.View.Printer.Instance.IsOrientedLandscape;

                printPreviewDialog.ShowDialog(doc);

                printPreviewDialog.Dispose();
                printPreviewDialog = null;

            }
            catch (Exception exp)
            {
                System.Console.WriteLine(exp.Message.ToString());
            }
        }