Remarks
The property returns null when the text selection contains multiple paragraphs with mixed setting.
Gets or sets a value specifying whether text is centered at the current input position. If text is selected, the property specifies this attribute for the whole selected text.
public bool? Centered { get; set; }
Public Property Centered() As Nullable(Of Boolean)
The following XAML example binds the Centered property to a Toggle
<ToggleButton
Height="29"
Name="buttonCentered"
IsChecked="{Binding ElementName=textControl1, Path=InputFormat.Centered, Mode=TwoWay}">
Centered</ToggleButton>
The property returns null when the text selection contains multiple paragraphs with mixed setting.