Refreshing a binding that uses a value converter
- by Hadi Eskandari
I have a WPF UI that is bound to an object. I'm using a ValueConverter to convert a property to a specific image by a business rule:
public class ProposalStateImageConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var proposal = value as Proposal;
var basePath = "pack://application:,,,/ePub.Content;component/Images/General/Flag_{0}.png";
string imagePath;
if(proposal.Invoice != null)
{
imagePath = string.Format(basePath, "Good");
}
else
{
imagePath = string.Format(basePath, "Warning");
}
var uri = new Uri(imagePath);
var src = uri.GetImageSource(); //Extention method
return src;
}
}
It is working fine, but later, when the object's state changes, I want to refresh the image and make the value converter reevaluate. How is this possible?
