Happy birthday Channel 9

  <DockPanel>
    <Grid DockPanel.Dock="Left" Margin="10">
      <ColumnDefinition/>
      <ColumnDefinition/>
      <RowDefinition Height="50"/>
      <RowDefinition Height="50"/>
      <Button x:Name="button1" Grid.Column="0" Grid.Row="0" Width="50" Height="50">1</Button>
      <Button x:Name="button2" Grid.Column="1" Grid.Row="0" Width="50" Height="50">2</Button>
      <Button x:Name="button3" Grid.Column="0" Grid.Row="1" Width="50" Height="50">3</Button>
      <Button x:Name="button4" Grid.Column="1" Grid.Row="1" Width="50" Height="50">4</Button>
    </Grid>

    <Viewbox>
      <Canvas Width="100" Height="100" Background="VerticalGradient LightCyan LightBlue">
        <Ellipse x:Name="ellipse" Canvas.Left="40" Canvas.Top="40" Stroke="Blue" StrokeThickness="1" Width="20" Height="20"/>
      </Canvas>
    </Viewbox>

  </DockPanel>

  <Page.Triggers>

    <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="button1">
      <EventTrigger.Actions>
        <BeginStoryboard Name="sb1">
          <Storyboard TargetName="ellipse">
            <ParallelTimeline>
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Left)" To="05.0" Duration="0:0:5" />
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Top)" To="05.0" Duration="0:0:5" />
            </ParallelTimeline>
          </Storyboard>
        </BeginStoryboard>
      </EventTrigger.Actions>
    </EventTrigger>

    <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="button2">
      <EventTrigger.Actions>
        <BeginStoryboard Name="sb2">
          <Storyboard TargetName="ellipse">
            <ParallelTimeline>
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Left)" To="75.0" Duration="0:0:5" />
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Top)" To="05.0" Duration="0:0:5" />
            </ParallelTimeline>
          </Storyboard>
        </BeginStoryboard>
      </EventTrigger.Actions>
    </EventTrigger>

    <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="button3">
      <EventTrigger.Actions>
        <BeginStoryboard Name="sb3">
          <Storyboard TargetName="ellipse">
            <ParallelTimeline>
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Left)" To="05.0" Duration="0:0:5" />
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Top)" To="75.0" Duration="0:0:5" />
            </ParallelTimeline>
          </Storyboard>
        </BeginStoryboard>
      </EventTrigger.Actions>
    </EventTrigger>

    <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="button4">
      <EventTrigger.Actions>
        <BeginStoryboard Name="sb4">
          <Storyboard TargetName="ellipse">
            <ParallelTimeline>
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Left)" To="75.0" Duration="0:0:5" />
              <DoubleAnimation Storyboard.TargetProperty="(Canvas.Top)" To="75.0" Duration="0:0:5" />
            </ParallelTimeline>
          </Storyboard>
        </BeginStoryboard>
      </EventTrigger.Actions>
    </EventTrigger>

  </Page.Triggers>

</Page>

-------------------------

Click on the buttons at random!

How does it work?

There is an ImagePipeline object and there are two threads on the two end of the pipeline. The picture producer thread reads the pictures from the WinFS (picture taken time descent order) and puts those onto the pipeline. Its main task is to keep 5 pictures on the pipeline always.

The consumer thread gets pictures from the pipeline and sends those to the Avalon controls periodically and starts the fade in animation. Its main task is to ensure accurate timing.

Requirements: WinFX Sept CTP, WinFS Beta 1

EDIT1:

Minor changes, fixes.

EDIT2:

- Migrated to WinFX Sept CTP
- Improvements

EDIT3

- Button visual style improvements

EDIT4

Minor changes:
- own RoutedEvent defined to start the fade-in animation
- minimize button has been implemented

It's really SQL server database files, but not the current available CTP version.

Good news, in my opinion.

$_["gn"] $_["sn"]
-------- --------
Zainal   Arifin
Sean     Chai
Karen    Berg
Terri    Duffy
Jian     Wang

Name        Capabilities          Drives
----        ------------          ------
Alias       ShouldProcess         {Alias}
Environment ShouldProcess         {Env}
FileSystem  Filter, ShouldProcess {C, D}
Function    ShouldProcess         {function}
Registry    ShouldProcess         {HKLM, HKCU}
Variable    ShouldProcess         {Variable}
Certificate ShouldProcess         {cert}
WinFS       Filter, ShouldProcess {DefaultStore, Catalog}

<C:\> get-drive | sort Provider, Name | ft -a

Name         Provider    Root               CurrentLocation
----         --------    ----               ---------------
Alias        Alias
cert         Certificate \
Env          Environment
C            FileSystem  C:\
D            FileSystem  D:\
function     Function
HKCU         Registry    HKEY_CURRENT_USER
HKLM         Registry    HKEY_LOCAL_MACHINE
Variable     Variable
Catalog      WinFS       Catalog:\
DefaultStore WinFS       DefaultStore:\

<C:\> get-childitem DefaultStore:\ | ft ShellPath, ItemSize, CreationTime, LastModificationTime, ItemId, MshIsContainer -a

ShellPath         ItemSize CreationTime        LastModificationTime ItemId                               MshIsContainer
---------         -------- ------------        -------------------- ------                               --------------
\StoreInformation      122 2005.08.29 20:28:55 2005.08.29 20:28:55  c8769183-cb18-da11-bc6f-000e3593317d           True
\Users                 122 2005.08.29 20:28:56 2005.08.29 20:28:56  c9769183-cb18-da11-bc6f-000e3593317d           True

ShellPath                             $_                                   ItemSize SizeX SizeY Comments
---------                             --                                   -------- ----- ----- --------
\Users\WinFS Beta1 Sample Data Folder System.Storage.Folder                     184
\Users\Kazi                           System.Storage.Folder                     132
\Users\winfs.png                      System.Storage.GenericFile              44355
\Users\Akos.jpg                       System.Storage.Image.Photo             477425 1600  1200
\Users\Karen Berg                     System.Storage.Contacts.Person           3730
\Users\Control Desk                   System.Storage.Contacts.Organization      777
\Users\Szia.doc                       System.Storage.Documents.Document       20695             De most már más lett
\Users\test.txt                       System.Storage.Documents.Document         161
\Users\Copy of Szia.doc               System.Storage.Documents.Document       20659             Na

As seen, the first argument is the OPath query expression and the remaining arguments are the positional parameters for the query expression.

EDIT2:

The get-winfsitem Cmdlet can return any object now. This means, it can write StorageRecord to the pipeline as well, if the OPath query contains "Project"-ing constructs.

MSH> get-winfsitem "Extent(@0).Top(5).Project(FullName.GivenName as gn, FullName.Surname as sn)" ([System.Storage.Contacts.Person]) | ft -a {$_["gn"]}, {$_["sn"]}

EDIT3:

The built-in WinFS Schema assemblies are preloaded correctly now. If you want to preload your custom schema assembly, use one of the following commands:

[Reflection.Assembly]::LoadFile("filepath")
[Reflection.Assembly]::Load("assembly strong name")

You can check the loaded assemblies this way:

[AppDomain]::CurrentDomain.GetAssemblies()

androidi wrote:

Cool


I am not certain whether these problems are with Avalon or the app. But here goes:

Build a release version and run it out of VS (just to be sure there's no/less debug code).

Now open up task manager and the cpu usage graph. Now run the app and put the continous update mode.

Watch CPU usage graph rise for a minute or so.

You can try minimize the app and the cpu usage stays same.

viliescu wrote:

Very nice!
One suggestion: you can use Viewbox element which automatically scales its content so you don't have to handle the scaling yourself.

So the XAML code will look something like that:
<Viewbox Stretch="Uniform">
    <Canvas x:Name="canvas">
...

Avalon is a great developing platform. It would be nice to work with Avalon sooner. I can experience its strength while I developed this tiny application. I recommend learning it for everybody.