protected void Button1_Click(object sender, EventArgs e) { Button1.Visible = false; Details d = new Details(); long det = d.trainerdet(Session["adminlogin"].ToString()); TrainerDao del = new TrainerDaoSqlImpl(); del.deleteSkillsTrainer(det); TrainerDao train = new TrainerDaoSqlImpl(); del.updatetrainerdetails(long.Parse(Label1.Text), TextBox1.Text, TextBox2.Text, TextBox3.Text, long.Parse(TextBox4.Text), long.Parse(TextBox5.Text), TextBox6.Text, TextBox7.Text); List <TrainerSkill> dbcheck = new List <TrainerSkill>(); RegistrationCheckbox registrationCheckbox = new RegistrationCheckbox(); foreach (ListItem item in CheckBoxList1.Items) { long skillId = long.Parse(item.Value); if (item.Selected) { registrationCheckbox.skillInsert(det, skillId); } } Label2.Text = "Profile Edited Succesfully"; Label2.Visible = true; }