Vfrdtyky

WPF

The Storyboard will advance the slider. I need to get the current numerical value of the slider as the storyboard moves. This seems to be difficult.

This is the code I would LIKE to have, BUT VALUE IS NOT ACCESSIBLE.

My question, how can I get the actual slider value while it is being animated???

TIA

<Button.Triggers>

     <EventTrigger RoutedEvent="Button.Click">

          <BeginStoryboard>

               <Storyboard Duration="0:0:10">

                     <DoubleAnimation Storyboard.TargetProperty="(RangeBase.Value)"                                                                    

                            Storyboard.TargetName="PART_RecordingProgressBar"

                                  From="{Binding ElementName=PART_RecordingProgressBar, Path=Value, Mode=OneWay}"

                                  To="{Binding ElementName=PART_RecordingProgressBar, Path=Maximum, Mode=OneWay}"

                                  FillBehavior="HoldEnd"

***THIS FAILS! **** Value ="{Binding Path= CurrentValue, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWayToSource}"

                                     >



                    </DoubleAnimation>

             </Storyboard>

         </BeginStoryboard>

     </EventTrigger>

 </Button.Triggers>

Here is the XAML (with much removed):

  <Style TargetType="{x:Type local:AudioRecorder}">

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type local:AudioRecorder}">

                    <Border Background="{TemplateBinding Background}"

                            BorderBrush="{TemplateBinding BorderBrush}"

                            BorderThickness="{TemplateBinding BorderThickness}">

                        <Grid>

                            <StackPanel Orientation="Horizontal">



                                <Button x:Name="FastForward" Height="20">

                                    <Button.Template>

                                        <ControlTemplate TargetType="{x:Type Button}">

                                            <Border>

                                                <Viewbox Stretch="Fill">

                                                    <Path Stroke="Black" Data=" F1

                                                        M 0 0     V40  L 34.6 20  Z

                                                        M 17.3 0  V40  L 51.9 20  Z"  Fill="LightBlue" />

                                                </Viewbox>

                                            </Border>

                                        </ControlTemplate>

                                    </Button.Template>

                                    <Button.Triggers>

                                        <EventTrigger RoutedEvent="Button.Click">

                                            <BeginStoryboard>

                                                <Storyboard Duration="0:0:10">



                                                    <DoubleAnimation Storyboard.TargetProperty="(RangeBase.Value)"  

                                                                     Storyboard.TargetName="PART_RecordingProgressBar"

                                                                     From="{Binding ElementName=PART_RecordingProgressBar, Path=Value, Mode=OneWay}"

                                                                     To="{Binding ElementName=PART_RecordingProgressBar, Path=Maximum, Mode=OneWay}"

                                                                     FillBehavior="HoldEnd"

          Value ="{Binding Path= CurrentValue, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWayToSource}"

                                                                     >



                                                    </DoubleAnimation>

                                                </Storyboard>

                                            </BeginStoryboard>

                                        </EventTrigger>

                                    </Button.Triggers>

                                </Button>



<Popup  Name="Popup" 

                                Placement="Bottom" PlacementTarget="{Binding ElementName=OpenRecorder}"

                                AllowsTransparency="True" Focusable="False" StaysOpen="True" IsOpen="False" PopupAnimation="None">

                            <Grid Name="DropDown" SnapsToDevicePixels="True" MinWidth="{TemplateBinding ActualWidth}">



                                            <Slider x:Name="PART_RecordingProgressBar" 

                                                        IsMoveToPointEnabled="True"

                                                        Maximum="{Binding Path=CurrentTrackLength, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}" 

                                                        Value="{Binding Path=CurrentTrackPosition, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"

                                                        HorizontalAlignment="Left" Height="22" Margin="15,423,0,0" VerticalAlignment="Top" Width="375"  />







                                        </Grid>

                                    </Border>



                                    <Button Name="closeButton" Content="Exit" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="73"/>

                                </Grid>

                            </Popup>

                        </Grid>

                    </Border>



                    <ControlTemplate.Triggers>



                    </ControlTemplate.Triggers>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>