i have two datalist. in first datalist i am having itemcommand(linkbutton) and i am binding Industrynames in linkbutton when page loads. now all industry name is there. now i want to bind data in second datalist from database when i mouse over in first datalist IndustrName(linkbutton) and also i want to show this second datalist in popup window when i mouseover in IndustryName. please kindly reply how to do this? i have no idea.