title: How we create column in datagridview through vb.net loop
body: <p><img src="https://i.stack.imgur.com/Bz7XK.jpg" alt="enter image description here"></p>
  
  <p>can any one Tell me how can i create columns in datagridview
  so that 
  when i select month number 1,3,5,7,8,10,12 (jan, march, may, july, august, oct, december) then 31 columns should be create in datagridview because these months have 31 days
  when i select month number 4,6,9,11 (April, jun, september, november)then 30 columns should be create automatically in datagridview and
  when i select month number 2 (feb) then then show 28 column in datagridview.
  month will be selected from "Date time picker" 
  This is employ attendance for created in vb.net I upload screen shoot for more explation.</p>