<head id="Head1" runat="server"> <title>Untitled Page</title> <script type="text/javascript"> function chkboxMeth() { var chkbox = document.getElementById("CheckBoxList1"); var inputArr = chkbox.getElementsByTagName('input'); var labelArr = chkbox.getElementsByTagName('label'); var sum = ""; for (var i = 0; i < labelArr.length; i++) { if (inputArr[i].checked == true) { sum = sum + labelArr[i].innerText; } } alert(sum); return false; } </script></head><body> <form id="form1" runat="server"> <div> <asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="True" BackColor="#00CC99" Font-Bold="True" ForeColor="#FF0066"> <asp:ListItem Value="1">Apple</asp:ListItem> <asp:ListItem Value="2">Banana</asp:ListItem> <asp:ListItem Value="3">Grapes</asp:ListItem> </asp:CheckBoxList> <asp:Button ID="Button1" runat="server" Style="position: absolute; z-index: 102; left: 400px; top: 48px;" Text="Click" OnClientClick =" return chkboxMeth()" BackColor="#CCCC66" Font-Bold="True" Width="64px"/> </div> </form></body></html>