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WPF DataBinding & Converters

/ Published in: C#
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reference: [blogs.msdn](http://blogs.msdn.com/b/bencon/archive/2006/05/10/594886.aspx)

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  1. // XAML
  2. <Window.Resources>
  3.     <local:TwoDecimalConverter x:Key="decConverter" />
  4. </Window.Resources>
  5. ...
  6. <Slider x:Name="slider1" TickFrequency="1" TickPlacement="BottomRight" />
  7. <TextBox Text="{Binding ElementName=slider1, Path=Value, Converter={StaticResource decConverter}}" /> 
  8.  
  9. // C#
  10. public class TwoDecimalConverter : IValueConverter
  11. {
  12.     public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
  13.     {
  14.         double val;
  15.  
  16.         if (value == null)
  17.             return "0";
  18.  
  19.         if (!Double.TryParse(value.ToString(), out val))
  20.             return "0";
  21.  
  22.         return val.ToString("F2");
  23.  
  24.     }
  25.  
  26.     public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
  27.     {
  28.         throw new NotImplementedException();
  29.     }
  30. }

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