XAML Unleashed

Text Selection

TextBox exposes straightforward and familiar members for text selection—SelectionHighlightColor, SelectAll, Select, SelectedText, SelectionStart, SelectionLength, and GetRectFromCharacterIndex. However, unlike TextBlock and RichTextBlock, these are based on simple int character indices rather than TextPointer objects.

In addition to the Select All and Copy commands supported by TextBlock and RichTextBlock, TextBox’s editable nature enables it to provide automatic support for Cut, Paste, Undo, and Redo as well. The availability of every command except Select All depends on context, but Figure 12.20 shows the built-in context menu when every command is available.

FIGURE 12.20 TextBox supports all the standard text commands via ...