I was trying to make the checkbox have three state status in GenReport.aspx and the boolean nullable in
GenReport.aspx.cs. The checkbox that has the null value will show all the true and false for the Internet Access, NSF, and/or Loan Computer.
I wanted to debug in report.aspx to select any options of Internet Access, NSF, and/or Loan Computer. When I click the generate button, it gives me errors.
Please help me check what's wrong. My project due date is on 6th March.
GenReport.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="GenReport.aspx.cs" Inherits="IT_application_form_v4.admin.GenReport" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.auto ...
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