Tim Maxey .NET Technology Blog & Resources
September 2008 Entries
First, throw this into a Mater Page, or the page you have your CheckBoxList control on...
<script type="text/javascript">
function uStyle(cb) {
cb.parentNode.style.backgroundColor =
cb.checked ? "yellow" : "" ;
cb.parentNode.style.color =
cb.checked ? "blue" : "" ;
}
</script>
Now I databind the CheckBoxList, so if you do not (you just loaded values manually) then take the the CheckBoxList1.DataBind reference out...
I have a Sub I call on the Page Load event: If Not Page.IsPostBack then... "AddScript"
Protected Sub AddScript()
CheckBoxList1.DataBind
Dim MyItem As ListItem
For Each MyItem In CheckBoxList1.Items
MyItem.Attributes.Add("onclick", "uStyle(this);")
Next
End Sub
This seems to work a lot better than having to use an Update Panel and a ONSELECTED_CHANGE event...