Gets or sets the opacity of the SelectionBrush.
Assembly: PresentationFramework (in PresentationFramework.dll)
The following example creates a TextBox and adds the text, "This is some text." The example sets the SelectionBrush property to red and the property to 0.5 to customize the appearance of selected text.
<TextBox SelectionBrush="Red" SelectionOpacity="0.5" Foreground="Blue" CaretBrush="Blue"> This is some text. </TextBox>
The following illustration shows the TextBox from the preceding example with its text selected.
Available since 4.0