how to get textbox value from front end to crystal report

hi 
could you help me out
here i a m giving my reportbtn click event
protected void btnReport_Click(object sender, EventArgs e)
        {
            dbFactory = new DBFactory();
            dbConn =connection string;
            dbConn.Open();
            classid = 0;
            dostudentmonthlyattendance = new DOStudentMonthlyAttendance();
            bllstudentmonthlyattendance = new BLLStudentMonthlyAttendance();
            dalstudentclass = new DALADDStudentClass();
            Reportstudentmonthattendance repexp = new Reportstudentmonthattendance();
            DataSet objds = new DataSet();
            DataView objdw;
            ReportDocument objrep = new ReportDocument();
           
            try
            {
                if (!((txtlastname.Text.Equals("")&&txtfirstname.Text.Equals(""))&&(txtstartdate.Text.Equals("") && txtenddate.Text.Equals(""))))
                {
                    classid = dalstudentclass.SelectStudentClassID(ClassName.Value, dbFactory);
                    DataSet ds = new DataSet();
                    bllstudentmonthlyattendance = new BLLStudentMonthlyAttendance();
                    dostudentmonthlyattendance = new DOStudentMonthlyAttendance();
                    SqlDataAdapter da = new SqlDataAdapter();
                   
                    assignvalue();
                    objds = bllstudentmonthlyattendance.SelectStudent(dostudentmonthlyattendance);
                    if (objds != null && objds.Tables[0].Rows.Count > 0)
                    {
                        objdw = new DataView(objds.Tables[0]);
                        repexp.SetDataSource(objdw);
                        CrystalReportStudentattendance.ReportSource = repexp;
                    }
                    else
                    {
                        objdw = new DataView(objds.Tables[0]);
                        repexp.SetDataSource(objdw);
                        CrystalReportStudentattendance.ReportSource = repexp;
                    }
                }
                repexp.Refresh();
            }
            catch (NullReferenceException ex)
            {
                exLog = new LogException();
                exLog.SaveException(Request.Cookies["UserName"].Value.ToString(), "FrmReportFormSubmission", "GetData", ex.Message);
                Response.Redirect("FrmLogin.aspx", true);
            }
            catch (Exception ex)
            {
                exLog = new LogException();
                exLog.SaveException(Request.Cookies["UserName"].Value.ToString(), "FrmReportFormSubmission", "GetData", ex.Message);
            }
            finally
            {
                if (dbConn.State == ConnectionState.Open)
                {
                    dbConn.Close();
                }
            }
        }
in this i just want to print textbox values i had tried your solution but unable to get answer could you help me out.

CrystalReport1 rpt = new CrystalReport1();
rpt.Section1.SectionFormat.BackgroundColor = Color.AliceBlue;

//**************using parameter**********************
rpt.SetParameterValue(0, textBox1.Text);
rpt.SetParameterValue(1, textBox2.Text);
//***************************************************

//**************without parameter**********************
foreach (ReportObject rptObject in rpt.Section1.ReportObjects)
{
TextObject fld;
if (rptObject.Name.ToString() == "Text1")
{
fld = (TextObject)rptObject;
fld.Color = Color.Cyan;
fld.Border.BackgroundColor = Color.DarkGreen;
fld.Text = textBox1.Text;
}
if (rptObject.Name.ToString() == "Text2")
{
fld = (TextObject)rptObject;
fld.Color = Color.Cyan;
fld.Border.BackgroundColor = Color.DarkGreen;
fld.Text = textBox2.Text;
}

}
//********************************************************
crystalReportViewer1.ReportSource = rpt;