How can one fire a method of parent page? I have a popup window defined like below. I require that as soon as close the window, one of the method of Parent page is fired which in turn will refresh the grid.
<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderText="Call">
<ItemTemplate>
<a href= "javascript:void(0);" onclick="window.open('FollowUpDetails.aspx?sid=<%# Eval("ID") %>',null,'height=500,width=600,status=yes,toolbar=no,m enubar=no,location=no,scrollbars=yes');">
<asp:Button ID="btnCall" Enabled ='<%# EnableBtn(Convert.ToInt32(Eval("StatusID"))) %>' runat="server" Text="Call" /></a>
</ItemTemplate>
</asp:TemplateField>
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