its about saving your own information on the datagridview.... and also loading it in a form of a charts

Question

  I need help.....I'm using control_tab(4 page), 1st one is where i stored my information on my datagridview, 2nd page is where you load the information in a form of a pieChart(for daily), 3rd page its barChart(for weekly) and 4th page its lineChart(for monthly). basicly on the datagridview  the three colounms(date,Activity and time taken for each Activity). please i need help.... 24th monday I'm submitting..