SelectionOpacity Property

TextBoxBase.SelectionOpacity Property

.NET Framework (current version)
 

Gets or sets the opacity of the SelectionBrush.

Namespace:   System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

public double SelectionOpacity { get; set; }

Property Value

Type: System.Double

The opacity of the SelectionBrush. The default is 0.4.

If SelectionOpacity is set to 0, the SelectionBrush is transparent and is not visible. If SelectionOpacity is set to 1.0 or greater, the SelectionBrush is opaque and the selected text is not visible.

The following example creates a TextBox and adds the text, "This is some text." The example sets the SelectionBrush property to red and the SelectionOpacity 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.

TextBox with a red SelectionBrush

Selected text in a TextBox with SelectionOpacity set to 0.5

.NET Framework
Available since 4.0
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