protected void ccmbProfessionalClass_BeforeDataBind(object sender, EventArgs e)
 {
     using (TextbookFeeService.TextbookFeeApplClient client = new TextbookFeeService.TextbookFeeApplClient())
     {
         ccmbProfessionalClass.DataSource = client.GetProfessionalClassFee(ccmbTerm.SelectedValue, ccmbProfessionalClass.SelectedValue);
     }
 }
 protected void ccmbSchool_BeforeDataBind(object sender, EventArgs e)
 {
     using (TextbookFeeService.TextbookFeeApplClient client = new TextbookFeeService.TextbookFeeApplClient())
     {
         ccmbSchool.DataSource = client.GetSchoolByloginName(_loginName);
     }
 }
 protected void ccmbGrade_BeforeDataBind(object sender, EventArgs e)
 {
     using (TextbookFeeService.TextbookFeeApplClient client = new TextbookFeeService.TextbookFeeApplClient())
     {
         ccmbGrade.DataSource = client.GetGradeBySchoolId(ccmbSchool.SelectedValue);
     }
 }
 protected void ccmbTerm_BeforeDataBind(object sender, EventArgs e)
 {
     using (TextbookFeeService.TextbookFeeApplClient client = new TextbookFeeService.TextbookFeeApplClient())
     {
         ccmbTerm.DataSource = client.GetTerm();
     }
 }