Give dynamic name in Report Header in crystal report

Question

I've one Crystal Report which gets generated on selection change of dropdown... Everything is working perfect but One more thing I want to implement is dynamic Report Header(i.e. Text of dropdown should get displayed in Header).any suggestions....?

       public void FillMonthlySalesData()
    {
        _totalAmount = 0;
        foreach (SalesReportInfo SalesRecord in _salesReportViewModel.SalesmonthlyreportInfo)
        {
            DataRow objRowSales = _salesReturnreportDS.Tables["MonthlySalesTable"].NewRow();
            objRowSales["SINo"] = _mno++;
            objRowSales["Date"] = SalesRecord.SalesDate;
            objRowSales["Total"] = SalesRecord.Nettotal;
            _totalMonthlyAmount = _totalMonthlyAmount + SalesRecord.Nettotal;
             _month =  SalesRecord.SalesDate.Month;
             _year = SalesRecord.SalesDate.Year;
            _salesReturnreportDS.Tables["MonthlySalesTable"].Rows.Add(objRowSales);

        }
        DataRow objRow1 = _salesReturnreportDS.Tables["MonthlySalesTable"].NewRow();
        objRow1["NetTotal"] = _totalMonthlyAmount;
        objRow1["Month"] = _month;
        objRow1["Year"] = _year; ;



        _salesReturnreportDS.Tables["MonthlySalesTable"].Rows.Add(objRow1);
    }

Answer 1

dt.columns.Add("ReportHeader");
for(int i=0;i<dt.rows.count;i++)
{
dt.rows[i]["ReportHeader"]=comboReportHeader.Text;
}

Try this one