private void button4_Click(object sender, EventArgs e)
        {
            try
            {
                Cursor         = Cursors.WaitCursor;
                timer1.Enabled = true;
                rptStudentDetails rpt = new rptStudentDetails();
                //The report you created.
                SqlConnection  myConnection = default(SqlConnection);
                SqlCommand     MyCommand    = new SqlCommand();
                SqlDataAdapter myDA         = new SqlDataAdapter();
                CMS_DBDataSet1 myDS         = new CMS_DBDataSet1();
                //The DataSet you created.
                frmStudent frm = new frmStudent();

                myConnection          = new SqlConnection(cs.DBConn);
                MyCommand.Connection  = myConnection;
                MyCommand.CommandText = "select * from student where DateOfAdmission between @date1 and @date2 order by Course,Branch";
                MyCommand.Parameters.Add("@date1", SqlDbType.DateTime, 30, " DateOfAdmission").Value = DateFrom.Value.Date;
                MyCommand.Parameters.Add("@date2", SqlDbType.DateTime, 30, " DateOfAdmission").Value = DateTo.Value.Date;

                MyCommand.CommandType = CommandType.Text;
                myDA.SelectCommand    = MyCommand;
                myDA.Fill(myDS, "Student");
                rpt.SetDataSource(myDS);
                crystalReportViewer2.ReportSource = rpt;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        public virtual CrystalDecisions.CrystalReports.Engine.ReportDocument CreateReport()
        {
            rptStudentDetails rpt = new rptStudentDetails();

            rpt.Site = this.Site;
            return(rpt);
        }
        private void Button1_Click(object sender, EventArgs e)
        {
            try
            {
                if (Course.Text == "")
                {
                    MessageBox.Show("Please select course", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    Course.Focus();
                    return;
                }
                if (Branch.Text == "")
                {
                    MessageBox.Show("Please select branch", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    Branch.Focus();
                    return;
                }
                if (Session.Text == "")
                {
                    MessageBox.Show("Please select session", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    Session.Focus();
                    return;
                }
                Cursor         = Cursors.WaitCursor;
                timer1.Enabled = true;
                rptStudentDetails rpt = new rptStudentDetails();
                //The report you created.
                SqlConnection  myConnection = default(SqlConnection);
                SqlCommand     MyCommand    = new SqlCommand();
                SqlDataAdapter myDA         = new SqlDataAdapter();
                CMS_DBDataSet1 myDS         = new CMS_DBDataSet1();
                //The DataSet you created.
                frmStudent frm = new frmStudent();

                myConnection          = new SqlConnection(cs.DBConn);
                MyCommand.Connection  = myConnection;
                MyCommand.CommandText = "select * from student where  Course= '" + Course.Text + "'and branch='" + Branch.Text + "'and Session='" + Session.Text + "'order by Course,Branch,Student_Name";

                MyCommand.CommandType = CommandType.Text;
                myDA.SelectCommand    = MyCommand;
                myDA.Fill(myDS, "Student");
                rpt.SetDataSource(myDS);
                crystalReportViewer1.ReportSource = rpt;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }