public static int DeleteUnreadStudent(string userID, string FlagGrp, string Sender = "-1")
        {
            DataTable dt = null;

            if (userID != null && userID != "" && FlagGrp != "")
            {
                int FlagGrpB = bool.Parse(FlagGrp) == false ? 0 : 1;
                dt = MsgUnReadStudentBuisnes.DeleteUnReadMsgStudent(userID, FlagGrpB, int.Parse(Sender == "" ? "-1" : Sender));
            }
            if (dt != null && dt.Rows.Count > 0)
            {
                return(int.Parse(dt.Rows[0]["CountUnRead"].ToString()));
            }
            else
            {
                return(0);
            }
        }
        protected void Page_Init(object sender, EventArgs e)
        {
            if (Session[sessionNames.userID_StudentOstad] == null)
            {
                Response.Redirect("~/CommonUI/login.aspx");
            }
            else
            {
                Session["CountUnRead"]   = null;
                Session["ContactUnread"] = null;
                LoginBusiness         logBusiness = new LoginBusiness();
                System.Data.DataTable dt          = new System.Data.DataTable();
                string userId = Session[sessionNames.userID_StudentOstad].ToString();
                user.Text = userId;
                //if (Request.QueryString["Flag_Grp"] != null )
                //{
                MessageJs.DeleteUnreadStudent(userId, Request.QueryString["Flag_Grp"] != null? Request.QueryString["Flag_Grp"]: "True",
                                              Request.QueryString["Flag_Grp"] != null && Request.QueryString["Flag_Grp"].Trim() != "True" && Request.QueryString["IdGrpOrPerson"] != null
                    ? Request.QueryString["IdGrpOrPerson"] :"-1");
                // }
                if (!IsPostBack)
                {
                    StuImg st = logBusiness.User_Img(Session[sessionNames.userID_StudentOstad].ToString());
                    PersonalImage.DataValue = st.img;
                    LoginDTO stInfo = logBusiness.Get_StInfo(Session[sessionNames.userID_StudentOstad].ToString());
                    stName.InnerText = stInfo.Name + " " + stInfo.LastName;


                    DataTable dtCountUnread;
                    DataTable dtUnReadContact;
                    dtCountUnread = MsgUnReadStudentBuisnes.GetUnReadMsgCountStudent(userId);

                    if (dtCountUnread != null && dtCountUnread.Rows.Count > 0)
                    {
                        Session["CountUnRead"] = dtCountUnread.Rows[0]["CountUnRead"].ToString();
                        dtUnReadContact        = MsgUnReadStudentBuisnes.GetUnReadMsgStudent(userId);
                        Session.Add("ContactUnread", dtUnReadContact);
                    }
                }
            }
        }