string updateCom = ("UPDATE Login SET Username = '" + textUsername.Text + "', Password = '" + textPassword.Text + "', Role = '" + comboBox1.Text + "', First_Name = '" + char.Parse(textFirstName.Text) + "', Last_Name = '" + char.Parse(textLastName.Text) + "', Age = " + int.Parse(textAge.Text) + "', Gender = " + char.Parse(textAge.Text) + " WHERE User_ID = " + textUser_ID.Text);