protected void Btnsave_Click(object sender, EventArgs e)
    {
        string    c  = "Insert into Notification(msg,ndt) values('" + TxtNotification.Text + "','" + DateTime.Now.ToString() + "')";
        DBManager dm = new DBManager();
        bool      x  = dm.ExecuteMyInsertUpdateOrDelete(c);

        GVNotification.DataBind();
        TxtNotification.Text = "";
        if (x == true)
        {
            Response.Write("<script>alert('Notificatiomn Saved.');</script>");
        }
        else
        {
            Response.Write("<script>alert('Notification not saved.');</script>");
        }
    }
 protected void Page_Load(object sender, EventArgs e)
 {
     if (IsPostBack == false)
     {
         ConnectionManager cm = new ConnectionManager();
         cm.YourCommand            = "SELECT top 5 message from Tbl_Notification order by notification_ID desc";
         GVNotification.DataSource = cm.ExecuteSelectByDisconnected();
         GVNotification.DataBind();
         int i = 0;
         foreach (GridViewRow r in GVNotification.Rows)
         {
             if (i != 0)
             {
                 Image im = (Image)r.FindControl("ImgNew");
                 im.Visible = false;
             }
             i++;
         }
     }
 }