/// <summary>
/// 从集合中移除特定触发器的第一个匹配项
/// </summary>
/// <param name="item">要移除的触发器</param>
public void Remove(AutoCompleteTrigger item)
{
this.InnerList.Remove(item);
}
/// <summary>
/// 将添加的单个触发器添加到集合中
/// </summary>
/// <param name="item">单个触发器</param>
public void Add(AutoCompleteTrigger item)
{
this.InnerList.Add(item);
}