//将List<DesignerContainer>转换为XElement节点
public static XElement ToXElement(this IEnumerable <DesignerContainer> obj)
{
var result = new XElement("DesignerContainers");
if (obj == null)
{
return(result);
}
foreach (var item in obj)
{
result.Add(DesignAttributeService.SerializToXElement(item));
}
return(result);
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.LeftButton != MouseButtonState.Pressed)
{
_dragStartPoint = null;
}
if (!_dragStartPoint.HasValue)
{
return;
}
var di = Content as DesignerItem;
if (di != null)
{
var dcontainer = new DesignerContainer();
dcontainer.Content = di;
var panel = VisualTreeHelper.GetParent(this) as WrapPanel;
var dataObject = new DragObject();
dataObject.Xaml = DesignAttributeService.SerializToXElement(dcontainer).ToString();
if (panel != null)
{
// desired size for DesignerCanvas is the stretched Toolbox Item size
var scale = 1.0;
dataObject.DesiredSize = new Size(panel.ItemWidth * scale, panel.ItemHeight * scale);
}
DragDrop.DoDragDrop(this, dataObject, DragDropEffects.Copy);
#region 用
//var dcontainer = new DesignerContainer();
//dcontainer.Content = item;
//WrapPanel panel = VisualTreeHelper.GetParent(this) as WrapPanel;
//DragObject dataObject = new DragObject();
//dataObject.Xaml= System.Windows.Markup.XamlWriter.Save(item);//dataObject.Xaml = DesignAttributeService.SerializToXElement(di).ToString();
//if (panel != null)
//{
// var scale = 1.0;
// dataObject.DesiredSize = new Size(panel.ItemWidth*scale, panel.ItemHeight*scale);
//}
////DragDrop.DoDragDrop(this, di, DragDropEffects.Copy);
//DragDrop.DoDragDrop(this, dataObject, DragDropEffects.Copy);
#endregion
}
e.Handled = true;
}