private void button1_Click(object sender, EventArgs e)
        {
            int crsID = 0;

            if (comboBox1.SelectedItem != null)
            {
                crsID = int.Parse(comboBox1.SelectedItem.ToString().Split(',')[0]);
            }
            else
            {
                MessageBox.Show("Please select course id", "Waring");
                return;
            }

            if (!isQuestDataValid())
            {
                MessageBox.Show("Please Enter Valid Data", "Waring");
                return;
            }

            string       qbody    = textBox1.Text;
            string       qtype    = comboBox3.SelectedItem.ToString();
            int          qdeg     = (int)numericUpDown1.Value;
            int          modelAns = int.Parse(textBox2.Text);
            Online_Exame ent      = new Online_Exame();
            var          last     = ent.Newquestion(modelAns, qtype, qdeg, qbody, crsID).First();

            ////////////////////////////////////////////////////////////////////
            if (last.Type.ToLower() == "mcq")
            {
                insertChoicesForQuestById(last.Quest_id);
            }



            LoadCourses();
            loadQuestions(crsID);
            textBox1.Text        = textBox2.Text = string.Empty;
            numericUpDown1.Value = 1;
            comboBox3.Text       = string.Empty;
        }