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ProgressBar Class

Updated: February 2009

Indicates the progress of an operation.

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

'Declaration
<TemplatePartAttribute(Name := "PART_Track", Type := GetType(FrameworkElement))> _
<TemplatePartAttribute(Name := "PART_Indicator", Type := GetType(FrameworkElement))> _
Public Class ProgressBar _
	Inherits RangeBase
'Usage
Dim instance As ProgressBar
<ProgressBar .../>

A ProgressBar control consists of a window that is filled, by default from left to right, as an operation progresses. The control has a range and a current position.

ProgressBar overrides the metadata of the Maximum property and sets its default to 100. ProgressBar overrides the metadata of the Focusable property and sets its default to false. For more information, see Dependency Properties Overview.

Dependency properties for this control might be set by the control’s default style. If a property is set by a default style, the property might change from its default value when the control appears in the application. The default style is determined by which desktop theme is used when the application is running. For more information, see Themes.

This example creates a ProgressBar and uses an animation to simulate the progress of an operation.

<StatusBar Name="sbar" 
           VerticalAlignment="Bottom" Background="Beige" >

  <StatusBarItem>
    <TextBlock>Downloading File</TextBlock>
  </StatusBarItem>
  <StatusBarItem>
    <ProgressBar Width="100" Height="20"
                 Name="progressBar1">
      <ProgressBar.Triggers>
        <EventTrigger RoutedEvent="ProgressBar.Loaded">
          <BeginStoryboard>
            <Storyboard>
              <DoubleAnimation
                Storyboard.TargetName="progressBar1" 
                Storyboard.TargetProperty="Value"
                From="0" To="100" Duration="0:0:5"  />
            </Storyboard>
          </BeginStoryboard>
        </EventTrigger>
      </ProgressBar.Triggers>
    </ProgressBar>
  </StatusBarItem>
  <Separator/>
  <StatusBarItem>
    <TextBlock>Online</TextBlock>
  </StatusBarItem>
  <StatusBarItem HorizontalAlignment="Right">
    <Image Source="images\help.bmp" Width="16" Height="16"/>
  </StatusBarItem>
</StatusBar>
ProgressBar progbar = new ProgressBar();
progbar.IsIndeterminate = false;
progbar.Orientation = Orientation.Horizontal;
progbar.Width = 150;
progbar.Height = 15;
Duration duration = new Duration(TimeSpan.FromSeconds(10));
DoubleAnimation doubleanimation = new DoubleAnimation(100.0, duration);
progbar.BeginAnimation(ProgressBar.ValueProperty, doubleanimation);

System.Object
  System.Windows.Threading.DispatcherObject
    System.Windows.DependencyObject
      System.Windows.Media.Visual
        System.Windows.UIElement
          System.Windows.FrameworkElement
            System.Windows.Controls.Control
              System.Windows.Controls.Primitives.RangeBase
                System.Windows.Controls.ProgressBar

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

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.

.NET Framework

Supported in: 3.5, 3.0

Date

History

Reason

February 2009

Described how default styles change dependency properties.

Customer feedback.

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