C#

protected  void   btnShow_Click(object sender, System.EventArgs e)
        {

           ReportDocument cryRpt = new ReportDocument();
            cryRpt.Load("CrystalReport3.rpt");

            TableLogOnInfos crtableLogoninfos = new TableLogOnInfos();
            TableLogOnInfo crtableLogoninfo = new TableLogOnInfo();
            ConnectionInfo crConnectionInfo = new ConnectionInfo();
            Tables CrTables;

            ParameterFieldDefinitions crParameterFieldDefinitions ;
            ParameterFieldDefinition crParameterFieldDefinition ;
            ParameterValues crParameterValues = new ParameterValues();
            ParameterDiscreteValue crParameterDiscreteValue = new ParameterDiscreteValue();

            crParameterDiscreteValue.Value =txtFrom.Text;
            crParameterFieldDefinitions = cryRpt.DataDefinition.ParameterFields;
            crParameterFieldDefinition = crParameterFieldDefinitions["Date1"];
            crParameterValues = crParameterFieldDefinition.CurrentValues;

            crParameterValues.Clear();
            crParameterValues.Add(crParameterDiscreteValue);
            crParameterFieldDefinition.ApplyCurrentValues(crParameterValues);

            crParameterDiscreteValue.Value = txtTo.Text;
            crParameterFieldDefinitions = cryRpt.DataDefinition.ParameterFields;
            crParameterFieldDefinition = crParameterFieldDefinitions["Date2"];
            crParameterValues = crParameterFieldDefinition.CurrentValues;

            crParameterValues.Add(crParameterDiscreteValue);
            crParameterFieldDefinition.ApplyCurrentValues(crParameterValues);
      
            crConnectionInfo.ServerName = "Server1";
            crConnectionInfo.DatabaseName = "Coupon Management.mdf";
            crConnectionInfo.UserID = "";
            crConnectionInfo.Password = "";

            CrTables = cryRpt.Database.Tables;
            foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in CrTables)
            {
                crtableLogoninfo = CrTable.LogOnInfo;
                crtableLogoninfo.ConnectionInfo = crConnectionInfo;
                CrTable.ApplyLogOnInfo(crtableLogoninfo);
            }

            CrystalReportViewer2.ReportSource = cryRpt;
            CrystalReportViewer2.RefreshReport(); 
        }

//T will likely only be of type <code>byte</code> or <code>enum : byte</code>
class FUBAR<T> where T : struct
{
  bool DoSomething(T a, T b)
  {
    return a.Equals(b); //will boxing occur? OR WILL THE OVERLOAD THAT <code>BYTE</code>DEFINES BE CALLED?
  }
}

for (int i = 0; i < 30; i++)
            {

                if (cene_novo[i] != "")
                {

                    
                    x = (double)new XDate(leto, mesec+i, i+14); ??

                    y1 = Convert.ToDouble(cene_novo[i]);
                    
                    list1.Add(x, y1);
                }
            }

private  SerialPort o_port = new SerialPort("COM3", 9600, Parity.Odd, 8, StopBits.One);

private void button1_Click(object sender, EventArgs e)
        {
           timer1.Enabled = true;
        }

         private void timer1_Tick(object sender, EventArgs e)
        {
//when this timer tick = 1000ms, my LED stay ***OFF*** 1s and it turn on 
//for just 5ms....and the cycle repeat at every tick.
            o_port.WriteLine("transmit data");
        }

private void numericUpDown1_ValueChanged(object sender, EventArgs e)
        {
//this is for changing the speed for my blinking LED.
            timer1.Interval = (int) numericUpDown1.Value;
            labelInterval.Text = timer1.Interval.ToString();
        }