/// <summary>
/// 构造函数
/// </summary>
/// <param name="action">改变行为</param>
/// <param name="newItem">新项</param>
/// <param name="oldItem">旧项</param>
public ChartCollectionChangedEventArgs(ChartCollectionChangedAction action, T newItem, T oldItem)
{
this.Action = action;
if (newItem != null)
{
this.NewItems = new List <T>()
{
newItem
};
}
if (oldItem != null)
{
this.OldItems = new List <T>()
{
oldItem
};
}
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="action">改变行为</param>
/// <param name="newItems">新项集合</param>
/// <param name="oldItems">旧项集合</param>
public ChartCollectionChangedEventArgs(ChartCollectionChangedAction action, List <T> newItems, List <T> oldItems)
{
this.Action = action;
this.NewItems = newItems;
this.OldItems = oldItems;
}