一段代码大家来看下

下面的代码中 this.Visible = false;中的this有点搞不明白,是引用PageElement类的实例,还是引用Panel类的实例
望大家指点下
 public class PageElement:System.Web.UI.WebControls.Panel
    {
        protected override void OnLoad(EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                string pageElementPower = Mud.Biz.Utils
                string[] powers = pageElementPower.Split('|');
                for (int i = 0; i < powers.Length; i++)
                {
                    if (ElementID == powers[i])
                    {
                        return;
                    }
                }
                this.Visible = false;   ////////
            }
        }        public string ElementID
        {
            get
            {
                try
                {
                    return this.Attributes["ElementID"].ToString();
                }
                catch
                {
                    return "";
                }
            }
        } 
              
    }