在asp.net中为Web用户控件添加属性和事件

namespace ZZ
{
 public class Default : System.Web.UI.Page
 {
  protected System.Web.UI.WebControls.Label LabelMsg;
  protected System.Web.UI.WebControls.DropDownList DropDownList1;
  protected LogInOutControl LogInOutControl1;
  private void Page_Load(object sender, System.EventArgs e)
  {
   //注册用户控件事件
   this.LogInOutControl1.LogInOutClick += new LogInOutClickHandler(LogInOutControl1_LogInOutClick);
  }
  #region Web 窗体设计器生成的代码
  override protected void OnInit(EventArgs e)
  {
   InitializeComponent();
   base.OnInit(e);
  }
  private void InitializeComponent()
  {   
   this.DropDownList1.SelectedIndexChanged += new System.EventHandler(this.DropDownList1_SelectedIndexChanged);
   this.Load += new System.EventHandler(this.Page_Load);
  }
  #endregion
  private void LogInOutControl1_LogInOutClick(object sender, LogInOutEventArgs e)
  {
   switch(e.Type)
   {
    case LogInClickType.LongIn:
     this.LabelMsg.Text = "你点击了登录按钮，操作结果："+e.Result.ToString();
     break;
    case LogInClickType.LongOut:
     this.LabelMsg.Text = "你点击了注销按钮，操作结果："+e.Result.ToString();
     break;
   }
  }
private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
  {
   this.LogInOutControl1.Lg = (Language)this.DropDownList1.SelectedIndex;
   //this.LogInOutControl1.ChangeLanguage((Language)this.DropDownList1.SelectedIndex);
  }
 }
}

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