protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { if (!IsLoginUser) { lblMsg.Text = "对不起,您没有模拟用户的权限!"; btnConfirm.Enabled = false; } else { lblMsg.Text = ""; btnConfirm.Enabled = true; } string to = bll.IsExist(fromUserCode); if (!string.IsNullOrEmpty(to)) { txtUserCode.Text = to; } } }