Adding a Binding to a TextBox from C#
<UserControl x:Class='SilverlightApplication3.MainPage' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:d='http://schemas.microsoft.com/expression/blend/2008' xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' mc:Ignorable='d' d:DesignWidth='640' d:DesignHeight='480'> <StackPanel x:Name="LayoutRoot" Background="White"> <TextBox x:Name="myTextBox" /> <Button x:Name="myButton" Content="Update Time" Height="30" Width="90" Click="myButton_Click" /> </StackPanel> </UserControl> //File: Page.xaml.cs using System; using System.Collections.Generic; using System.Linq; using System.Net; 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.Animation; using System.Windows.Shapes; namespace SilverlightApplication3 { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); DateTime currentTime = DateTime.Now; Binding binding = new Binding("TimeOfDay"); binding.Source = currentTime; binding.Mode = BindingMode.OneWay; myTextBox.SetBinding(TextBox.TextProperty, binding); } private void myButton_Click(object sender, RoutedEventArgs e) { DateTime currentTime = DateTime.Now; Binding binding = new Binding("TimeOfDay"); binding.Source = currentTime; binding.Mode = BindingMode.OneWay; myTextBox.SetBinding(TextBox.TextProperty, binding); } } }