Notes

-- Dans DataRessource ----
<Style x:Key="CursorStyle" TargetType="{x:Type ContentControl}">
<Setter Property="Opacity" Value="0.50"/>
<Setter Property="ContentTemplate" Value="{StaticResource ScatterViewItemDataTemplate}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ContentControl}">
<ContentPresenter
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}">
</ContentPresenter>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Tag" Value="DragEnter">
<Setter Property="Opacity" Value="1.0"/>
</Trigger>
</Style.Triggers>
</Style>

-- Utilisation --
/*Scatter view Item*/
private void OnDragSourcePreviewInputDeviceDownScatterView(object sender, InputEventArgs e)
{
Console.WriteLine("OnDragSourcePreviewInputDeviceDownScatterView");
FrameworkElement findSource = e.OriginalSource as FrameworkElement;
ScatterViewItem draggedElement = null;

// Find the ScatterViewItem object that is being touched.
while (draggedElement == null && findSource != null)
{
if ((draggedElement = findSource as ScatterViewItem) == null)
{
findSource = VisualTreeHelper.GetParent(findSource) as FrameworkElement;
}
}

if (draggedElement == null)
{
return;
}

Product data = draggedElement.Content as Product;


// Set the dragged element. This is needed in case the drag operation is canceled.
data.DraggedElement = draggedElement;

// Create the cursor visual.
ContentControl cursorVisual = new ContentControl()
{
Content = draggedElement.DataContext,
Style = FindResource("CursorStyle") as Style
};

// Create a list of input devices,
// and add the device passed to this event handler.
List<InputDevice> devices = new List<InputDevice>();
devices.Add(e.Device);

// If there are touch devices captured within the element,
// add them to the list of input devices.
foreach (InputDevice device in draggedElement.TouchesCapturedWithin)
{
if (device != e.Device)
{
devices.Add(device);
}
}

// Get the drag source object.
ItemsControl dragSource = ItemsControl.ItemsControlFromItemContainer(draggedElement);

// Start the drag-and-drop operation.
SurfaceDragCursor cursor =
SurfaceDragDrop.BeginDragDrop(
// The ScatterView object that the cursor is dragged out from.
dragSource,
// The ScatterViewItem object that is dragged from the drag source.
draggedElement,
// The visual element of the cursor.
cursorVisual,
// The data attached with the cursor.
draggedElement.DataContext,
// The input devices that start dragging the cursor.
devices,
// The allowed drag-and-drop effects of the operation.
DragDropEffects.Move);

// If the cursor was created, the drag-and-drop operation was successfully started.
if (cursor != null)
{
// Hide the ScatterViewItem.
draggedElement.Visibility = Visibility.Hidden;

// This event has been handled.
e.Handled = true;
}

DragSource.Opacity = 0.2;


//Console.WriteLine(e.Cursor.GetOrientation(this));
//Console.WriteLine(e.Cursor.GetOrientation(this));
}