In this asp.net gridview control, the checked property is always missing. I need to access the checked property via jquery

Gridview source:
            <Columns>
            <asp:TemplateField>
                <ItemTemplate>
                     <asp:CheckBox ID="chkSelected" runat="server" class="chkSummarySelection"  />
                   </ItemTemplate>
            </asp:TemplateField>
        </Columns>

Renders as :

<input type="checkbox"  name="ctl00$ContentPlaceHolder1$gv$ctl02$SelectedCheckBox" id="ctl00_ContentPlaceHolder1_gv_ctl02_SelectedCheckBox">    

There is no checked property to access. I have tried

$(".chkSummarySelection").click(function () {
var chk;
chk = $(this).prop("checked");
chk = $(this).attr("checked");
chk = $(this).is(":checked");
chk = $(this).attr("value");
chk = $(this).val();
chk = jQuery(this).is(':checked');
});

but nothing is working