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FrameworkElement.HorizontalAlignment Property

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Gets or sets the horizontal alignment characteristics that are applied to a FrameworkElement when it is composed in a layout parent, such as a panel or items control.

Namespace:  System.Windows
Assembly:  System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public Property HorizontalAlignment As HorizontalAlignment

public HorizontalAlignment HorizontalAlignment { get; set; }

<frameworkElement HorizontalAlignment="horizontalAlignmentValue"/>

XAML Values

  • horizontalAlignmentValue
    A constant name from the HorizontalAlignment enumeration, for example Left.

Property Value

Type: System.Windows.HorizontalAlignment
A horizontal alignment setting, as a value of the enumeration. The default is Stretch.

Remarks

Dependency property identifier field: HorizontalAlignmentProperty

When the Height and Width properties are explicitly set on an object, these measurements take precedent during layout and can cancel the typical effects of setting HorizontalAlignment to Stretch.

Canvas does not use HorizontalAlignment when composing layout, because Canvas is based on absolute positioning. In general, the value of HorizontalAlignment is potentially treated differently by any given object that is capable of having one or more FrameworkElement objects as child content.

Examples

In the following example, the value Center is assigned to HorizontalAlignment and VerticalAlignment to position the TextBlock elements in the center of the Grid cells.

    <Grid x:Name="LayoutRoot" Background="Coral" Width="300" Height="100" ShowGridLines="True">
    <Grid.ColumnDefinitions>
        <ColumnDefinition />
        <ColumnDefinition />
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition />
    </Grid.RowDefinitions>
    <TextBlock Grid.Column="0" Grid.Row="0" Text="First Name" HorizontalAlignment="Center" VerticalAlignment="Center" />
    <TextBlock Grid.Column="0" Grid.Row="1" Text="Last Name" HorizontalAlignment="Center" VerticalAlignment="Center" />
    <TextBox Grid.Column="1" Grid.Row="0" />
    <TextBox Grid.Column="1" Grid.Row="1" />

</Grid>

The previous example produces output that resembles the following illustration.

margin and alignment example

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.