VB.net OnClientClick pass in ID of another div - html

Question

I have the following asp repeater:
<asp:Repeater runat="server" ID="rptResults">
<ItemTemplate>
<div class="FileFile Large pdf SearchResult" id="<%# DirectCast(Container.DataItem, FileFolder).DocStoreID%>">
<a href='<%# DirectCast(Container.DataItem, FileFolder).Link %>' style="text-decoration:none">
<%# DirectCast(Container.DataItem, FileFolder).BackgroundHTML%>
<p style="float:left;line-height:32px;margin:0px"><%# DirectCast(Container.DataItem, FileFolder).Filename%></p>
</a>
<asp:Button runat="server" OnClientClick="return confirmation(this);" ID="btnDeleteFile" CommandArgument="<%# DirectCast(Container.DataItem, FileFolder).DocStoreID%>" UseSubmitBehavior="false" Text="Delete" Style="float:right;margin-top:8px;cursor:pointer;"/>
<a style="float:right;line-height:32px;margin-right:10px">ID = <%# DirectCast(Container.DataItem, FileFolder).DocStoreID%></a>
</div>
</ItemTemplate>
</asp:Repeater>
<script>
function confirmation(sender) {
if (confirm("Delete file "+ sender.id + "?"))
return true;
else return false;
}
</script>
I want the OnClientClick to say:
Delete File ######
to do this I need to pass in the id of the parent div, or the content of the <a> next to it.
Currently, I have OnClientClick="return confirmation(this);", which passes in the button. SO I could possibly store this information in a field on the button, but I have tried:
name="%# DirectCast(Container.DataItem, FileFolder).DocStoreID%>"
But this does not work. Are there any other variables I can use to store this, or a way to pass a reference to another element within the repeater?

Answer 1

you can use title attribute in your button:
title="<%# DirectCast(Container.DataItem, FileFolder).DocStoreID%>"
and then your javascript will be
function confirmation(sender){
if(confirm("Delete file " + sender.title + " ?"))
return true;
else
return false;
}
be aware that title attribute is intended to display a tooltip, so the user will see a toolip over your button. Hope it helps.

Answer 2

Try this
OnClientClick="return confirmation('<%= DirectCast(Container.DataItem, FileFolder).DocStoreID %>');"
And you JS would be
function confirmation(sender) {
if (confirm("Delete file "+ sender + "?"))
return true;
else return false;
}