public DataSet getAmount(int FHIDFK, long Studentid, string Csession, string Month)
    {
        DefaultersMOdel model = new DefaultersMOdel();

        model.FHIDFK      = FHIDFK;
        model.StudentIDFK = Studentid;
        model.CSession    = Csession;
        model.Months      = Month;
        DataSet ds = Ddal.totalAmount(model);

        if (ds.Tables[0].Rows.Count > 0)
        {
            return(ds);
        }
        else
        {
            return(ds = null);
        }
    }
    public DataSet SDetails()
    {
        DefaultersMOdel Dmodel = new DefaultersMOdel();

        Dmodel.CSession  = Session["Current_Session"].ToString();
        Dmodel.Classid   = Convert.ToInt64(ddlclasses.SelectedValue);
        Dmodel.Sectionid = Convert.ToInt64(ddlsection.SelectedValue);

        DataSet ds = Ddal.getStudentDetails(Dmodel);

        if (ds.Tables[0].Rows.Count > 0)
        {
            return(ds);
        }
        else
        {
            return(ds = null);
        }
    }