How to Serialize PrinterSettings

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Hi,

I need to save some settings for my app.
For bad luck there're also printer settings available ...
Saving the settings looks fine but when I load them again I ever get an exception null value here:
System.Drawing.Printing.PrinterSettings.set_PrintFileName(String value)

Is there a way to also serialize the printer settings?
My code I use for other settings is included how to expand to make it work with the printer settings?

C#

public class PrintDataSettings
{
    public PrintDataSettings()
    {
            DefaultPrinterSettings = new PrinterSettings();
    }
    public PrintDataSettings(PrintDataSettings printSettings)
    {
            DefaultPrinterSettings = printSettings.DefaultPrinterSettings;
    }

        [XmlElement("DefaultPrinterSettings")]
        public PrinterSettings DefaultPrinterSettings { get; set; }
}

Thanks
Harish.

Posted 30-Dec-13 2:15am

Harish Reddy K

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Comments

Richard MacCutchan 30-Dec-13 9:26am

Use you debugger to identify which item is a null value.

BillWoodruff 30-Dec-13 11:08am

System.Drawing.Printing.PrinterSettings.set_PrintFileName(String value)

This code does not make sense: System.Drawing.Printing.PrinterSettings is a Class; there is no method in that Class like the one you show being used.

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Valery Possoz · Accepted Answer · 2013-12-30T09:27:00

Hello,

You have an exception during de-serialization in System.Drawing.Printing.PrinterSettings.set_PrintFileName(String value) because it is not allowed to set the property PrintFileName to an empty or null string, the setter of the property throws this exception.

I go round this issue by assigning a fake file name to the property, it is not a problem as it is unused if PrintTofile is False.

PrinterSettings prtSettings = new PrinterSettings();
prtSettings.PrintFileName = "does not matter, unused if PrintToFile == false";
						
//serialise
System.Xml.Serialization.XmlSerializer xmlSerializer = new System.Xml.Serialization.XmlSerializer(prtSettings.GetType());
using (System.IO.TextWriter txtWriter = new StreamWriter(@"c:\temp\printerSettings.xml"))
{
	xmlSerializer.Serialize(txtWriter,prtSettings);
}
			
//deserialise
using (FileStream fileStream = new FileStream(@"c:\temp\printerSettings.xml", FileMode.Open))
{
	object obj = xmlSerializer.Deserialize(fileStream);
	prtSettings = (PrinterSettings)obj;
}

Valery.