public virtual CrystalDecisions.CrystalReports.Engine.ReportDocument CreateReport()
        {
            TKDtNamIn rpt = new TKDtNamIn();

            rpt.Site = this.Site;
            return(rpt);
        }
        private void doanhthutungnam_Click(object sender, EventArgs e)
        {
            TKDtNam   tkdt   = new TKDtNam();
            TKDtNamIn tkdtin = new TKDtNamIn();

            tkdt.crvdoanhthunam.ReportSource = tkdtin;
            tkdt.ShowDialog();
        }