public class TextBox : UIControl

Public Class TextBox
	Inherits UIControl

public ref class TextBox : public UIControl

type TextBox =  
    class
        inherit UIControl
    end

// Create a multi-line text box.
var textBox = new TextBox
{
  Margin = new Vector4F(4),
  Text = "Lorem ipsum dolor sit ...",
  MaxLines = 5,   // Show max 5 lines of text.
  HorizontalAlignment = HorizontalAlignment.Stretch,
};

// Add a context menu (Cut, Copy, Paste) to the text box.
var contextMenu = new ContextMenu();
var cut = new MenuItem { Content = new TextBlock { Text = "Cut" } };
var copy = new MenuItem { Content = new TextBlock { Text = "Copy" } };
var paste = new MenuItem { Content = new TextBlock { Text = "Paste" } };
cut.Click += (s, e) => textBox.Cut();
copy.Click += (s, e) => textBox.Copy();
paste.Click += (s, e) => textBox.Paste();
contextMenu.Items.Add(cut);
contextMenu.Items.Add(copy);
contextMenu.Items.Add(paste);
textBox.ContextMenu = contextMenu;

// To show the text box, add it to an existing content control or panel.
panel.Children.Add(textBox);