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| TextBox Selection start, end and selected text |
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<Window x:Class="ClassicControls.TextBoxTest"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="TextBoxTest" Height="325" Width="390">
<Grid Margin="5">
<Grid.RowDefinitions>
<RowDefinition Height="2*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<TextBox Name="txt" VerticalScrollBarVisibility="Auto" TextWrapping="Wrap" AcceptsReturn="True"
SelectionChanged="txt_SelectionChanged"
SpellCheck.IsEnabled="True">this is a test</TextBox>
</Grid>
</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 ClassicControls
{
public partial class TextBoxTest : System.Windows.Window
{
public TextBoxTest()
{
InitializeComponent();
}
private void txt_SelectionChanged(object sender, RoutedEventArgs e)
{
Console.WriteLine(txt.SelectionStart);
Console.WriteLine(txt.SelectionLength);
Console.WriteLine(txt.SelectedText);
}
}
}
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| Related examples in the same category |
| 1. | TextBox Style | |  | | 2. | Bind TextBlock to TextBox | |  | | 3. | TextBox focus listener | |  | | 4. | TextBox with custom ErrorTemplate and ToolTip | |  | | 5. | TextBox uses the ExceptionValidationRule and UpdateSourceExceptionFilter handler | |  | | 6. | TextBox with UpdateSourceExceptionFilter handler | |  | | 7. | TextBox with default ErrorTemplate | |  | | 8. | TextBox MouseLeftButtonDown action and PreviewMouseLeftButtonDown action | |  | | 9. | Assign your own class to DataContent and bind to TextBox | |  | | 10. | Listen to TextBox text changed event | |  | | 11. | Handler for the PreviewKeyDown event on the TextBox | |  | | 12. | TextBox: set text, select all, clear, prepend, insert, append, cut, paste, undo | |  | | 13. | Set TextBox to editable | |  | | 14. | TextBox text changed event | |  | | 15. | TextBox PreviewKeyDown | |  | | 16. | TextBox KeyDown | |  | | 17. | TextBox PreviewKeyUp | |  | | 18. | TextBox KeyUp | |  | | 19. | TextBox TextInput | |  | | 20. | TextBox PreviewTextInput | |  | | 21. | Scroll TextBox | |  | | 22. | TextBox TextChanged event | | | | 23. | Use Dictionary to record which textbox has been changed and not saved | |  | | 24. | Set TextBox ContextMenu to null | |  | | 25. | Scrollable TextBox Column | |  | | 26. | TextBox PreviewKeyDown, PreviewKeyUp, PreviewTextInput, KeyDown, KeyUp and TextChanged events | |  | | 27. | Check Spelling Error | |  |
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