Try something like:
HTML:
<asp:repeater id="rlist" runat="server">
<ItemTemplate>
<asp:CheckBox ID="chkboxSelection" Checked=true Runat="server" Enabled="true"></asp:CheckBox>
<asp:Label ID="hdnStoreID" Visible="false" Text='<%#DataBinder.Eval(Container.DataItem, "SomeText") %>' runat=server></asp:Label>
</ItemTemplate>
</asp:repeater>
Code behind:
RepeaterItemCollection rc = rlist.Items;
foreach (RepeaterItem Item in rc) {
CheckBox myCheckBox = (CheckBox)Item.FindControl("chkboxSelection");
if (myCheckBox.Checked == true) {
strJobID = ((Label)Item.FindControl("hdnStoreID")).Text;
}
}