<Window x:Class="WpfApplication1.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:myConverters ="clr-namespace:WpfApplication1" Title="Simple Data Binding" Height="334" Width="288" WindowStartupLocation="CenterScreen" > <Window.Resources> <myConverters:MyDoubleConverter x:Key="DoubleConverter"/> <myConverters:MyColorConverter x:Key="ColorConverter"/> </Window.Resources> <StackPanel Width="250" DataContext = "{Binding ElementName=mySB}"> <ScrollBar Orientation="Horizontal" Name="mySB" Maximum = "100" LargeChange="1" SmallChange="1"/> <TextBox Name="txtThumbValue" Text = "{Binding Path=Value, Converter={StaticResource DoubleConverter}}"/> <Button Content="Click" FontSize = "{Binding Path=Value}" Background= "{Binding Path=Value, Converter={StaticResource ColorConverter}}"/> </StackPanel> </Window> //File:Window.xaml.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.Collections.Generic; namespace WpfApplication1 { public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } } class MyColorConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { double d = (double)value; byte v = (byte)d; Color color = new Color(); color.A = 255; color.G = (byte) (155 + v); return new SolidColorBrush(color); } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return value; } } class MyDoubleConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { double v = (double)value; return (int)v; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return value; } } }