Binding an Image source to TextBox.Text

Question

I am trying to bind the Text of a TextBox named 'txtImage' to an image using the following code with no results:

<Image Source="{Binding ElementName=txtImage, Path=Text}" />

What would the right approach be?

Answer 1

Source of Image requires a BitmapImage, thus try using a Value Converter to convert the string to an Image:

public sealed class ImageConverter : IValueConverter
{
    public object Convert(object value, Type targetType,
                          object parameter, CultureInfo culture)
    {
        try
        {
            return new BitmapImage(new Uri((string)value));
        }
        catch 
        {
            return new BitmapImage();
        }
    }

    public object ConvertBack(object value, Type targetType,
                              object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }

}  

<Image>
    <Image.Source>
        <BitmapImage UriSource="{Binding ElementName=txtImage, Path=Text, Converter=...}" />
    </Image.Source>
</Image>

Reference: http://stackoverflow.com/questions/20586/wpf-image-urisource-and-data-binding