private void retrieve()
        {
            try
            {
                if (ThisReminder == null)
                {
                    ThisReminder = new ReminderModel2();
                }

                //FILL DGV
                FillDGView(ThisReminder.TaskTbls.ToList());
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
        private void btnSearch_Click(object sender, EventArgs e)
        {
            cbDueDay.Text    = "";
            cbDueHour.Text   = "";
            cbDueMin.Text    = "";
            tbTaskName.Text  = "";
            tbClassName.Text = "";
            tbTaskDesc.Text  = "";

            using (var db = new ReminderModel2())
            {
                var query = from taskReminder in db.TaskTbls where taskReminder.TaskName == tbSearch.Text select taskReminder;
                foreach (var item in query)
                {
                    cbDueDay.Text    = item.DueDay;
                    cbDueHour.Text   = item.DueHour;
                    cbDueMin.Text    = item.DueMin;
                    tbTaskName.Text  = item.TaskName;
                    tbClassName.Text = item.ClassName;
                    tbTaskDesc.Text  = item.Desc;
                }
            }
        }