How to write the code without distubing page data get the previous page values?

Jul 27 2011 9:46 AM

hi,

i am taking gridview, with in grid use the dropdown based on customer retrive the database values in dropdown, but my issue is with in dropdown "Add New Item" is taking, so customer select the that field open the new page and add the values, after adding the item automatically close the page and mainpage dropdown automatically added without distubing the other values how it possible .