Dear All,

I came across a project where we have 3 drop downlist in asp.net these are server side control, lets for example consider these 3 drop downlist will hold value of year, month and day. Considering the year and month selected the 3rd dropdown list will display the no of day within that particular month and a year.The values generated within this year drop down list and month drop down list is generated by using javascript function. below is the code for the same.