[Resolved] Print margins problem

Hi there

I am having issues with getting print preview to work reliably with C#.
I have viewed the help files/docs on msdn and scoured many other articles on the web, its quite tricky to piece together how printing is meant to work as there is a lack of documentation on the issue however i have struggled on to finally get my little app working to some degree only to find what i think is a possible bug! (but probly bad code on my behalf)

I am making a windows forms app that has a rich text box, some buttons to print preview/page settings/print and also a print preview.
The problem arises when i open the page settings dialog, every time i open this the settings for the margins are changed to be made smaller, this even happens if myPageSetupDialog.AllowMargins = false.
I am fairly sure that this is not down to my code as i do not touch the margins in anyway except when the printPage event is fired and i print a line with the MarginBounds settings.
I dont think the values of the margins should be changing at all.

Code:

---

namespace SimplePrinting
{
        public class Form1 : System.Windows.Forms.Form
        {
                private System.ComponentModel.Container components = null;
                private PrintDocument myPrintDoc = new PrintDocument();
                private System.Windows.Forms.RichTextBox richTextBox1;
                private PrintPreviewDialog myPrintPreviewDialog = new PrintPreviewDialog();
                private PrintDialog myPrintDialog = new PrintDialog();
                private PageSettings myPageSettings = new PageSettings();
                private System.Windows.Forms.PrintPreviewControl printPreviewControl1;
                private System.Windows.Forms.Button btnUpdate;
                private System.Windows.Forms.ComboBox comboPrinters;
                PrinterSettings myPrinterSettings = new PrinterSettings();
               
                public Form1()
                {
                        myPrintDoc.PrintPage += new PrintPageEventHandler(myPrintDoc_PrintPage);
                       

                        MenuItem fileMenuItem = new MenuItem("&File");
                        MenuItem filePageSetupMenuItem = new MenuItem("Page Set&up...",
                                new EventHandler(filePageSetupMenuItem_Click));
                        MenuItem filePrintPreviewMenuItem = new MenuItem("Print Pre&view",
                                new EventHandler(filePrintPreviewMenuItem_Click));
                        MenuItem filePrintMenuItem = new MenuItem("&Print...",
                                new EventHandler(filePrintMenuItem_Click), Shortcut.CtrlP);

                        fileMenuItem.MenuItems.Add(filePageSetupMenuItem);
                        fileMenuItem.MenuItems.Add(filePrintPreviewMenuItem);
                        fileMenuItem.MenuItems.Add(filePrintMenuItem);

                        this.Menu = new MainMenu();
                        this.Menu.MenuItems.Add(fileMenuItem);
                        InitializeComponent();

                }

               
                private void Form1_Load(object sender, System.EventArgs e) {
                        richTextBox1.LoadFile("C:\\Temp\\test.rtf");
                        fillComboPrinters();
                }
//- Event Handlers for the menu --------------
                private void filePageSetupMenuItem_Click(Object sender, EventArgs e){
                        //Page Setup event handler
                        PageSetupDialog myPageSetupDialog = new PageSetupDialog();
                        myPageSetupDialog.PageSettings = myPageSettings;
                        myPageSetupDialog.PrinterSettings = myPrinterSettings;
                        myPageSetupDialog.AllowOrientation = true;
                        myPageSetupDialog.AllowMargins = true;
                        myPageSetupDialog.AllowPrinter = true;
                       

                        if(myPageSetupDialog.ShowDialog() == DialogResult.OK){
                                myPrintDoc.DefaultPageSettings = myPageSetupDialog.PageSettings;
                                myPageSettings = myPageSetupDialog.PageSettings;
                                printPreviewControl1.Document = myPrintDoc;
                        }
                }

                private void filePrintPreviewMenuItem_Click(Object sender, EventArgs e){
                        //Print Preview event handler
                        myPrintDoc.DefaultPageSettings = myPageSettings;
                        myPrintPreviewDialog.Document = myPrintDoc;
                        myPrintPreviewDialog.ShowDialog();

                }

                private void filePrintMenuItem_Click(Object sender, EventArgs e){
                        //Print event handler
                        //myPrintDoc.Print() will fire off the newly defined
                        //myPrintDoc_PrintPage() event where we make the content to send.
                        //but first we set the documents print settings
                        //then we set the printdialogs document
                        //otherwise it doesnt know what the fsck is going on!
                        //then finally show the print dialog box
                        myPrintDoc.DefaultPageSettings = myPageSettings;
                        myPrintDialog.Document = myPrintDoc;
                        if(myPrintDialog.ShowDialog() == DialogResult.OK){
                                myPrintDoc.Print();
                        }
                }
//- End of menu Event Handlers --------------------


                private void myPrintDoc_PrintPage(Object sender, PrintPageEventArgs e){
                        //PrintPage event handler, here we acctually print stuff
                        //using the PrintPageEventArgs object.
                        //its .Graphics property represents a print page and we
                        //can use its methods to print stuff!
                       
                        Brush myBrush = new SolidBrush(richTextBox1.ForeColor);
                        //set the margins
                        int leftMargin = e.MarginBounds.Left;
                        int topMargin = e.MarginBounds.Top;
                        int y = 0;
                       
                        foreach(String line in richTextBox1.Lines){
                                e.Graphics.DrawString (line, richTextBox1.Font, myBrush, leftMargin, topMargin + y);
                                y +=15;
                               
                                if(y >= e.MarginBounds.Bottom){
                                        e.HasMorePages = true;
                                        y = 0;
                                        return;
                                }
                                else{
                                        e.HasMorePages = false;
                                }
                        }
                }

                private void btnUpdate_Click(object sender, System.EventArgs e) {
                        printPreviewControl1.Document = null;
                        myPrintDoc.DefaultPageSettings = myPageSettings;
                        printPreviewControl1.Document = myPrintDoc;
                }

                private void comboInstalledPrinters_SelectionChanged(object sender, System.EventArgs e) {
                        System.Console.WriteLine("Combo changed!");
                        if(comboPrinters.SelectedIndex != -1){
                                myPrintDoc.PrinterSettings.PrinterName = comboPrinters.Text;
                                myPrinterSettings.PrinterName = comboPrinters.Text;
                                myPageSettings.PrinterSettings.PrinterName = comboPrinters.Text;
                        }
                }

                private void fillComboPrinters(){
                        string strCurPrinter = null;
                        for(int i = 0;  i < PrinterSettings.InstalledPrinters.Count -1; i++){
                                strCurPrinter = PrinterSettings.InstalledPrinters[i];
                                comboPrinters.Items.Add(strCurPrinter);
                                System.Console.WriteLine(strCurPrinter);
                        }
                }
        }
}

---

this is really just a tarted up version of http://www.ondotnet.com/pub/a/dotnet.../printing.html which i would have thought would work, but i still get this funny anomaly.


any help would be much appreciated

thanks alot
Eddy Parris

Solved.. alomost:

http://support.microsoft.com/?id=814355

this is also not fixed in vs2005 :(
bit of a joke if you ask me... having to change a system-wide setting in order to print properly!

They had "more important" things to do than fix existing bugs when creating VS 2005/.NET 2.0. Let's hope this and a few other things get fixed when they release service packs later in the year.

Yeah, its a bit of a joke really, i might have found another bug in the print review control. if it is a bug and not my code that will be my 2nd, one bug for every week ive been using .net.
The printing stuff is particularly annoying as i work for a printing company and being able to print properly is essential for our move to .net