Get Values on clicking fusion chart

See more:

ASP.NET

Hi,

Please help me, how to pass the value of fusionchart(when clicking on it) to a c# function.

<chart>
<set label='Sample1' name='Sample1' value='1' tooltext='Sample1,1' link='JavaScript:MyFunc(%26quot; ABC %26quot;);' />
<set label='Sample2' name='Sample2' value='2' tooltext='Sample2,1'  link='JavaScript:MyFunc(%26quot; xyz %26quot;);' />
</chart>

I am calling Js on clicking on chart.

function MyFunc(var1) {
            var modal = $find("newtest");
            $("#dialog").empty();
            $("#dialog").append("<iframe frameborder='0' sandbox='allow-top-navigation' target='_Parent' seamless='seamless' width='100%' height='100%' src='WebForm2.aspx'></iframe>");
            modal.show();
        }

Here I am getting values on-clicking the chart. But the problem is with IFrame.

I am calling the page 'WebForm2.aspx' using IFrame, and I have added GridView in that page. Codebehind is working on page load, but not working on postback.
So I am searching for any other option to do postback to 'webform2.aspx'

Thanks in advance