Border Class (System.Windows.Controls)

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

Border Class

Draws a border, background, or both around another element.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

Syntax

Visual Basic (Declaration)

Public Class Border _
    Inherits Decorator

Visual Basic (Usage)

Dim instance As Border

public class Border : Decorator

Visual C++

public ref class Border : public Decorator

JScript

public class Border extends Decorator

XAML Object Element Usage

<Border>
  Child
</Border>

Remarks

Content Model: Border can have only one child. To display multiple child elements, you need to place an additional Panel element within the parent Border. You can then place child elements within that Panel element.

If you want to display a border around your content, you must place the elements within a parent Border element.

Examples

The following example demonstrates how to create a Border and set properties in code and Extensible Application Markup Language (XAML).

Visual Basic

Dim myBorder As New Border
myBorder.Background = Brushes.LightBlue
myBorder.BorderBrush = Brushes.Black
myBorder.BorderThickness = New Thickness(2)
myBorder.CornerRadius = New CornerRadius(45)
myBorder.Padding = New Thickness(25)

myBorder = new Border();
myBorder.Background = Brushes.LightBlue;
myBorder.BorderBrush = Brushes.Black;
myBorder.BorderThickness = new Thickness(2);
myBorder.CornerRadius = new CornerRadius(45);
myBorder.Padding = new Thickness(25);

Visual C++

myBorder = gcnew Border();
myBorder->Background = Brushes::LightBlue;
myBorder->BorderBrush = Brushes::Black;
myBorder->BorderThickness = Thickness(2);
myBorder->CornerRadius = CornerRadius(45);
myBorder->Padding = Thickness(25);

XAML

<Border Background="LightBlue" 
        BorderBrush="Black" 
        BorderThickness="2" 
        CornerRadius="45" 
        Padding="25">

More Code

How to: Wrap a Border Around the Content of a Canvas	This example shows how to wrap a Canvas element with a Border.
How to: Change Border Properties	This example shows how to change the Background color of a Border element.

Inheritance Hierarchy

System..::.Object
  System.Windows.Threading..::.DispatcherObject
    System.Windows..::.DependencyObject
      System.Windows.Media..::.Visual
        System.Windows..::.UIElement
          System.Windows..::.FrameworkElement
            System.Windows.Controls..::.Decorator
              System.Windows.Controls..::.Border

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0

Reference

Border Members

System.Windows.Controls Namespace

Brush

Thickness

Other Resources

Decorator Content Model Overview

WPF Controls Gallery Sample

Alignment, Margins, and Padding Overview