MediaElement.MarkerReached Event (System.Windows.Controls)

MSDN Library
Web Development
Silverlight
Silverlight 3
.NET Framework Class Library for Silverlight
System.Windows.Controls Namespace
MediaElement Class
MediaElement Events

BufferingProgressChanged Event
CurrentStateChanged Event
DownloadProgressChanged Event
LogReady Event

MarkerReached Event

MediaEnded Event
MediaFailed Event
MediaOpened Event

Related Links

MediaElement..::.MarkerReached Event
This page is specific to:Microsoft Version:Silverlight 3

.NET Framework Class Library for Silverlight

MediaElement..::.MarkerReached Event

Occurs when a timeline marker is encountered during media playback.

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

Syntax

C++

JScript

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'Usage

Dim instance As MediaElement
Dim handler As TimelineMarkerRoutedEventHandler

AddHandler instance.MarkerReached, handler


'Declaration

Public Event MarkerReached As TimelineMarkerRoutedEventHandler

XAML Attribute Usage

<MediaElement MarkerReached="eventhandler"/>

Remarks

The MarkerReached event is not raised when the MediaElement seeks past a timeline marker. This event is raised whenever a marker associated with the media is reached. The marker might come from one of three locations:

Stored in the metadata of the currently opened media.
Associated with the currently opened media and coming from a separate stream.
Explicitly added to the Markers collection for the currently opened media, using script.

Examples

The following example creates a MediaElement object and responds to its MarkerReached event. Each time a timeline marker is reached, the example displays the timeline marker's Time, Type, and Text values.

    <Grid>
        <StackPanel>
            <TextBlock x:Name="timeTextBlock" FontSize="12">Time:</TextBlock>
            <TextBlock x:Name="typeTextBlock" FontSize="12">Type:</TextBlock>
            <TextBlock x:Name="valueTextBlock" FontSize="12">Value:</TextBlock>
            <Canvas>
              <MediaElement x:Name="media" Width="300" Height="200" 
               MarkerReached="OnMarkerReached" Source="thebutterflyandthebear.wmv"/>
            </Canvas>
        </StackPanel>
        

    </Grid>

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        public void OnMarkerReached(object sender, TimelineMarkerRoutedEventArgs e)
        {

            timeTextBlock.Text = e.Marker.Time.Seconds.ToString();
            typeTextBlock.Text = e.Marker.Type.ToString();
            valueTextBlock.Text = e.Marker.Text;
  
        }

Platforms

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

Reference

MediaElement Class

MediaElement Members

System.Windows.Controls Namespace

TimelineMarker

Community Content

Why the event isn't raised?

Added by:Thomas Lee

I used the MediaElement control in my project, and write code like the sample the same, but the MarkerReached event isn't raised, of couse I added the marker instnace. Anybody can tell me the reason? Thanks!

[tfl - 01 07 09] Hi - and thanks for your post. You should post questions like this to the MSDN Forums at http://forums.microsoft.com/msdn or the MSDN Newsgroups at

http://www.microsoft.com/communities/newsgroups/en-us/ . You are much more likely get a quicker response using the forums than through the Community Content. For specific help about:
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