public override void PrintDirect(string printerName = null)
{
PrintTool pt = new PrintTool(Document.PrintingSystem);
pt.PrintingSystem.StartPrint += new PrintDocumentEventHandler(PrintingSystem_StartPrint);
pt.PrintingSystem.PrintProgress += new PrintProgressEventHandler(PrintingSystem_PrintProgress);
pt.Print();
}
protected virtual void OnPrintButton()
{
using (PrintTool tool = new PrintTool(this.appointmentBackstageControl.Document))
tool.Print(this.appointmentBackstageControl.SelectedPrinterName);
}