Remarks
The property returns null when the text selection contains multiple characters with mixed setting.
Gets or sets a value specifying whether the text is strikeout at the current input position. If text is selected, the property specifies this attribute for the whole selected text.
public bool? Strikeout { get; set; }
Public Property Strikeout() As Nullable(Of Boolean)
The following XAML example binds the Strikeout property to a check box.
<CheckBox
Height="20"
Name="checkBoxStrikeout"
IsChecked="{Binding ElementName=textControl1, Path=InputFormat.Strikeout, Mode=TwoWay}">
Strikeout</CheckBox>
The property returns null when the text selection contains multiple characters with mixed setting.