JavaScript runtime error

Jun 20 2017 11:23 AM

I have got an old asp.net webpage which is related a js and a cs files. When I press F5, VS is giving me error: "0x800a138f - JavaScript runtime error: Unable to get property 'txtAppl' of undefined or null reference." How can I solve this issue?

<%@ Page Language="C#" Debug="true" %>
<script runat="server" src="uzpo2003_tbbuild.cs"></script>
<html>
<head>
<title></title>
<script type="text/javascript" src="uzpo2003_client.js"></script>
</head>
<body onload="form_load();">
</body>
</html>
====================================================================
uzpo2003_client.js:
function form_load() {
if (document.formSelect.txtAppl.value == -99999999)
return null;
}
===================================================================
uzpo2003_tbbuild.cs:
public class TableBuild
{
System.Text.StringBuilder output = new System.Text.StringBuilder();
public string tblBuilder(string department, string un)
{
int dept = int.Parse(department);
string dom;
dom = "<center><table border='0' style='font:14pt;' bgcolor='#A7C7B7'>";
dom += "<input type = 'text' name = 'txtAppl' value = '' size=16 id = 'Text1'></P>";
return output.ToString();
}
}

Answers (7)

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