WPF

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;
using System.Windows.Media.Imaging;

namespace SampleWpfApplication
{
  public class SimpleImageConverter : IValueConverter
  {

    #region IValueConverter Members

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
      Uri uri = new Uri(value.ToString(), UriKind.Absolute);
      BitmapImage img = new BitmapImage(uri);
      return img;
    }

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

    #endregion
  }
}

section:<local:SimpleImageConverter x:Key="MyConverter" />

<TextBlock Background="AliceBlue" DataContext="{Binding FOO, diag:PresentationTraceSources.TraceLevel=High}"
Text="{Binding StringFormat='Selected: {0:N0}', 
Path=BAR, diag:PresentationTraceSources.TraceLevel=High}"/ >

xmlns:diag="clr-namespace:System.Diagnostics;assembly=WindowsBase"

RugbyLeague wrote:

I have just spent ages messing around with my layout wondering why on earth a textblock wasn't showing

Mark Salsbery
Microsoft MVP - Visual C++