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Debugging Trick in XAML DataBinding

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3.67 (3 votes)
7 Jan 2011CPOL
Debugging XAML DataBinding
It is difficult to Debug the XAML data binding in WPF.

As a developer, we always tend to debug our programs when there are problems.

If something goes wrong like:
- No Data display
- Showing some wrong data

You need to debug and see:
- Whether the binding is successful
- Does data object have values
- and so on...

Here is the Trick to Debug the Data Binding of XAML.

All you need to do is create a Converter class.

Example:
public class DebugConverter : IValueConverter
{
        #region IValueConverter Members
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return value;
        }
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return value;
        }
        #endregion
}


While binding the Data to the Control, use the DebugConverter as Converter.

Like, declaring the Converter in XAML:

<Window.Resources>
<conv:DebugConverter x:Key="debugConverter" />
</Window.Resources>


Assigning to the Control whether we need to Debug the DataBinding:

<ListBox ItemsSource="{Binding ElementName=windowObject, Path=CollectionOfString, Converter={StaticResource debugConverter}}"/>


Now place a Breakpoint at the Convert function. That's it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Venkatesh Mookkan
Team Leader
Australia Australia
He is from a small village in Tirunelveli, TamilNadu (India). He is fun loving guy. He like to travel a lot. Bikes/Cars/Mobiles are his fantasies.

He started his career as a BPO Data Entry Assistant and got chance to work as an ASP.NET Programmer in the same company after a year. And he move to the next company in 2006 as Software Engineer.

He worked as a Team Leader in a private software development company @Chennai, India for 8+years.

Now working as a Consultant @Sydney, Australia.

Comments and Discussions

 
GeneralMay be are right. But how many people knew it? Thanks for te... Pin
Venkatesh Mookkan7-Jan-11 13:10
memberVenkatesh Mookkan7-Jan-11 13:10 
GeneralReason for my vote of 1 There is already a built in mechanis... Pin
SledgeHammer017-Jan-11 9:39
memberSledgeHammer017-Jan-11 9:39 
GeneralIf you already using a Converter to do some basic operation,... Pin
Venkatesh Mookkan7-Jan-11 4:22
memberVenkatesh Mookkan7-Jan-11 4:22 
GeneralIt's not always helpful. Atleast, when you have an object of... Pin
Kunal Chowdhury «IN»7-Jan-11 4:17
mentorKunal Chowdhury «IN»7-Jan-11 4:17 

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Posted 7 Jan 2011

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