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1564
How to handle the "DataPresenterCommands.StartEditMode" event in a custom DataRecordPresenter ?
posted

Hi,

 

In my xamDataPresenter I have create a custom "DataRecordPresenter" where I have something like this :

<Style TargetType="{x:Type igDP:DataRecordPresenter}">
  <Setter Property="HeaderAreaBackground" Value="{x:Null}"/>
  <Setter Property="Template"> .... </Setter> 
  <Setter Property="TemplateCardView">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type igDP:DataRecordPresenter}">
        <StackPanel>

          <vov:VideoThumbnail IsSelected="{Binding IsSelected}" MediaData="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=DataRecord.DataItem}"/>

<ContentPresenter
x:Name="PART_RecordContentSite"
Visibility="Collapsed"
Content="{TemplateBinding DataContext}"
ContentTemplate="{TemplateBinding RecordContentAreaTemplate}"/>

        </StackPanel>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

Now in my code I call this code to start the edition :         xdgMedias.ExecuteCommand(DataPresenterCommands.StartEditMode);

But I would like to handle the corresponding "event" in my "vov:VideoThumbnail" control.

Do you know how I can do this ?

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  • 9694
    posted

    There are a few ways you can do this. As you probably have discovered, you cannot simply access the VideoThumbnail since it is declared in a template.

    One way is to use the VisualTreeHelper to look for the ViewoThumbnail during runtime. The object is embedded in the Field and can be accessed through the Field hierarchy.

    A simpler way would be to provide an event for when the VideoThumbnail is initialized. In the event handler you can store a reference to the object for later access.

    The great thing about WPF is there are probably several other solutions.

    Thanks,

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