Control.Background Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets or sets a brush that describes the background of a control.
public:
property System::Windows::Media::Brush ^ Background { System::Windows::Media::Brush ^ get(); void set(System::Windows::Media::Brush ^ value); };
[System.ComponentModel.Bindable(true)]
public System.Windows.Media.Brush Background { get; set; }
[<System.ComponentModel.Bindable(true)>]
member this.Background : System.Windows.Media.Brush with get, set
Public Property Background As Brush
Property Value
The brush that is used to fill the background of the control. The default is Transparent.
- Attributes
Examples
The following example shows how to set the background property of a control.
<Button Name="btn" Background="Red"
Click="ChangeBackground">
Background
</Button>
void ChangeBackground(object sender, RoutedEventArgs e)
{
if (btn.Background == Brushes.Red)
{
btn.Background = new LinearGradientBrush(Colors.LightBlue, Colors.SlateBlue, 90);
btn.Content = "Control background changes from red to a blue gradient.";
}
else
{
btn.Background = Brushes.Red;
btn.Content = "Background";
}
}
Private Sub ChangeBackground(ByVal Sender As Object, ByVal e As RoutedEventArgs)
If (Equals(btn.Background, Brushes.Red)) Then
btn.Background = New LinearGradientBrush(Colors.LightBlue, Colors.SlateBlue, 90)
btn.Content = "Control background changes from red to a blue gradient."
Else
btn.Background = Brushes.Red
btn.Content = "Background"
End If
End Sub
The following example shows a template that enables a trigger to change the background of a button when it is pressed.
<Button FontSize="16" FontWeight="Bold">Click the Background
<Button.Template>
<ControlTemplate TargetType="{x:Type Button}">
<Border Background="{TemplateBinding Background}">
<ContentPresenter/>
</Border>
</ControlTemplate>
</Button.Template>
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="Blue"/>
<Style.Triggers>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
Remarks
The Background property applies only to the resting state of a control. The default style of the control specifies its appearance when the state of the control changes. For example, if you set the Background property on a Button, the button has that value only when it is not pressed or disabled. If you want to create a control that has a more advanced customization of the background, you must define the control's style.
This property only affects a control whose template uses the Background property as a parameter. On other controls, this property has no impact.
Dependency Property Information
Identifier field | BackgroundProperty |
Metadata properties set to true |
AffectsRender, SubPropertiesDoNotAffectRender |
Applies to
.NET
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