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On button click event in windows form I use following code to show page setup dialog.
            PageSetupDialog pageSetup = new PageSetupDialog();
            pageSetup.PrinterSettings = new System.Drawing.Printing.PrinterSettings();
            pageSetup.PageSettings = new System.Drawing.Printing.PageSettings();
            pageSetup.EnableMetric = false;
            pageSetup.ShowDialog();
 
After setting page setup and printer I clicked Ok. But when page setup dialog opens again it is reseted to the default settings. Previously changed values not displayed.
Posted 25-Dec-11 17:02pm
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Solution 1

You are NOT saving any settings. There basically are two ways to get previous values as preset defaults:
 
1. keep using the same dialog, i.e. move the new PageSetupDialog(); line out of the loop.
 
2. or actually do save the settings, then restore them to your next dialog when you need it.
 
Obviously #1 is the easier way.
 
Smile | :)
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Solution 2

Of course it would do that because you create a brand new instance of the dialog using
PageSetupDialog pageSetup = new PageSetupDialog();
What else could you expect?
 
You really need to re-use the same object over and over. The best and most universal way to do that on-demand using lazy initialization pattern, see http://en.wikipedia.org/wiki/Lazy_initialization[^].
 
I would simply keep the reference to the dialog as a field of the main form, so the whole picture would look like this:
 
public class MainForm : Form {
 
    PageSetupDialog PageSetupDialog {
        get {
            if (fPageSetupDialog == null) {
                fPageSetupDialog = new PageSetupDialog();
                fPageSetupDialog.PrinterSettings = new System.Drawing.Printing.PrinterSettings();
                fPageSetupDialog.PageSettings = new System.Drawing.Printing.PageSettings();
                fPageSetupDialog.EnableMetric = false;
            }
            return fPageSetupDialog;
    } //PageSetupDialog

    PageSetupDialog fPageSetupDialog; //null at first, don't use it directly

    //...

    void SomeMethodWherePageSetupDialogIsUsed() {
        // of the very first call, an instance will be created
        // on other calls, same instance will be used
        // preserving all the previous settings
        PageSetupDialog.ShowDialog();
        //...
    } //SomeMethodWherePageSetupDialogIsUsed

} //class MainForm
 
—SA
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0 OriginalGriff 6,055
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2 Maciej Los 4,087
3 Kornfeld Eliyahu Peter 3,500
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