public void ShowPropertyWindow(UIElement element)
{
_lineControl = element as LineControl;//旧的
if (_lineControl == null)
{
return;
}
#region 如果是新建连线就创对_lineObject对象
if (_lineObject == null)
{
LineObject obj = LineObjects.Where(p => p.LineId.Equals(_lineControl.UniqueID)).SingleOrDefault();
if (obj == null)
{
_lineObject = new LineObject();
_lineObject.LineId = _lineControl.UniqueID;
}
else
{
_lineObject = obj;
}
UpdateLineObject(_lineObject);
}
#endregion
}
/// <summary>
/// 更新连线的集合(如果连线不存在,就加入到集合里)
/// </summary>
/// <param name="activity">连线</param>
/// <returns></returns>
public void UpdateLineObject(LineObject activity)
{
var e = from a in LineObjects
where a.LineId == activity.LineId
select a;
var ent = e.FirstOrDefault();
if (ent != null)
{
//先删除后增加,保证数据是最新的
LineObjects.Remove(ent);
LineObjects.Add(activity);
}
else
{
LineObjects.Add(activity);
}
}