C # Time Comparison Functions

protected void btduring_click (Object sender, eventargs e)
{< br> datetime dttemp = new datetime (1984, 10, 7 );
datetime dttemp70 = dttemp. addyears (70);
datetime dttemp80 = dttemp. addyears (80);
datetime dttemp90 = dttemp. addyears (90);
datetime dttemp100 = dttemp. addyears (100);

response. write (getpassingday (dttemp, datetime. now) + "
");
response. write (getpassingday (dttemp, dttemp100) + "
");
response. write (getpassingday (datetime. now, dttemp70) + "
");
response. write (getpassingday (datetime. now, dttemp80) + "
");
response. write (getpassingday (datetime. now, dttemp90) + "
");
response. write (getpassingday (datetime. now, dttemp100) + "
");
response. write (getpassingday (datetime. now, dttemp100) + "
");
}

Public int getpassingday (datetime dtstart, datetime dtend)
{< br> datetime dttemp = dtstart;
datetime dtnow = dtend;
timespan Ts = dtnow-dttemp;
return (INT) math. round (TS. totaldays);
}