<Window x:Class="WpfApplication1.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="WpfApplication1" Height="225" Width="311" WindowStartupLocation="CenterScreen"> <StackPanel> <TextBox SpellCheck.IsEnabled ="True" AcceptsReturn ="True" Name ="txtData" FontSize ="14" BorderBrush ="Blue" Height ="100"> </TextBox> <Button Name ="btnOK" Content ="Get Selections" Width = "100" Click ="btnOK_Click"/> </StackPanel> </Window> //File:Window.xaml.cs using System; using System.Collections.Generic; 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.Shapes; namespace WpfApplication1 { public partial class MainWindow : System.Windows.Window { public MainWindow() { InitializeComponent(); } protected void btnOK_Click(object sender, RoutedEventArgs args) { string spellingHints = string.Empty; SpellingError error = txtData.GetSpellingError(txtData.CaretIndex); if (error != null) { foreach (string s in error.Suggestions) { spellingHints += string.Format("{0} ", s); } MessageBox.Show(spellingHints, "Try these instead"); } } } }