protected void btn_update_Click( object sender, EventArgs e )
        {
            string pid = this.lbl_pid.Text;
            string name = this.lbl_name.Text;
            string gender = this.lbl_gender.Text;
            string tempdate = this.lbl_date.Text;
            string tempage = this.lbl_age.Text;
            string medical = this.txtbox_medical.Text;

            BusinessTier.DoctorOperation doctor = new BusinessTier.DoctorOperation();

            if ( pid.Length > 0 && name.Length > 0 && gender.Length > 0 && tempdate.Length > 0 && tempage.Length > 0 && medical.Length > 0 )
            {
                try
                {
                    DateTime date = DateTime.Parse(tempdate);
                    int age = int.Parse(tempage);
                    doctor.UpdatePatientByID(name, gender, date.Date, age, medical, pid);
                }
                catch ( Exception ex )
                {
                    this.lbl_error.Text = ex.Message;
                }
            }
            else if ( medical.Length == 0 )
            {
                this.lbl_medicalwarning.Text = "This filed is required!";
            }
            else
            {
                this.lbl_error.Text = "Please select your patient first";
            }
        }
 protected void btn_myassigns_Click( object sender, EventArgs e )
 {
     defaultstatus();
     string roleID = this.lbl_docID.Text.ToString().ToUpper();
     Data.DataBase.SelectAllAssignmentDetailsDataTable table = new Data.DataBase.SelectAllAssignmentDetailsDataTable();
     BusinessTier.DoctorOperation doctor = new BusinessTier.DoctorOperation();
     table = doctor.SelectAssignmentDetailsByRole(roleID);
     this.gv_myassignview.DataSource = table;
     this.gv_myassignview.DataBind();
 }