public ConnectionDragEventArgs(RoutedEvent routedEvent, object source,
ElementItem elementItem, ConnectorItem sourceConnectorItem)
: base(routedEvent, source)
{
_elementItem = elementItem;
_sourceConnectorItem = sourceConnectorItem;
}
private void OnConnectorItemDragCompleted(object sender, ConnectorItemDragCompletedEventArgs e)
{
e.Handled = true;
RaiseEvent(new ConnectionDragCompletedEventArgs(ConnectionDragCompletedEvent, this,
_draggingSourceConnector.ParentElementItem, _draggingConnectionDataContext,
_draggingSourceConnector));
_draggingSourceConnector = null;
_draggingConnectionDataContext = null;
}
private void OnConnectorItemDragStarted(object sender, ConnectorItemDragStartedEventArgs e)
{
e.Handled = true;
_draggingSourceConnector = (ConnectorItem)e.OriginalSource;
var eventArgs = new ConnectionDragStartedEventArgs(ConnectionDragStartedEvent, this,
_draggingSourceConnector.ParentElementItem, _draggingSourceConnector);
RaiseEvent(eventArgs);
_draggingConnectionDataContext = eventArgs.Connection;
if (_draggingConnectionDataContext == null)
{
e.Cancel = true;
}
}
public ConnectionDragStartedEventArgs(RoutedEvent routedEvent, object source,
ElementItem elementItem, ConnectorItem connectorItem)
: base(routedEvent, source, elementItem, connectorItem)
{
}
internal ConnectionDragCompletedEventArgs(RoutedEvent routedEvent, object source,
ElementItem elementItem, object connection, ConnectorItem sourceConnectorItem)
: base(routedEvent, source, elementItem, sourceConnectorItem)
{
_connection = connection;
}