i want to disable number of copies in print dialog through C# classes. Below is the code snippet of one of my function to assign number of copies entered by user.

    public void get_no_copies(string a)
    {
    //MessageBox.Show(printDoc.DocumentName);
    no_of_copies = a;
    printer_text_name = get_def_printer();
    //MessageBox.Show("Printer will print "+no_of_copies+ "no of copies");
    //Thread.Sleep(500);
    pr_settings.Copies = Int16.Parse(a);
    no_copies_flag = 1;
    try
    {
        MessageBox.Show("1-Your printer = " + get_text_defprinter + "\n" + "2-Document    Path = " + file_path_text + "\n" + "3-Number of Copy= " + no_of_copies + "\n" + "4-Get_Text_Path= " + file_path_text);
        get_def_printer();
    }
    catch (Exception ex)
    {
        MessageBox.Show("please give all attributes!!");

    }
    pdlg.AllowPrintToFile = Enabled;

    pr_settings.Collate = Enabled;

}