What might be the reason why my form doesn't seem to be recognizing the submit() function in

Being new to asp.net and javascript, I am struggling to find helpful web resources and troubleshoot javascript errors. The specific issue I'm facing is with the line oFormObject.submit(); which throws a Microsoft JScript runtime error: Object doesn't support this property or method.

To improve the aesthetics of my webpage, I decided to use links that function as buttons instead of creating multiple buttons in a table. However, I've read that this approach may lead to browser rendering issues and unnecessary traffic. Additionally, the CSS I found to style buttons like links is causing alignment and spacing problems.

<!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml" >
<head><link rel="stylesheet" type="text/css" href="DefectSeverity.css" /><title>
  Defect Severity Assessment Code List
</title></head>
<body>
<form name="form1" method="post" action="CodeList.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJNjQzMTI3NjU4ZGSW2wNBW3eGztyO+Tftc5BB8A6cMg==" />
</div>

<div>
<p>Welcome Maslow</p><SCRIPT language="JavaScript">
function submitForm(intId)
{ oFormObject= document.getElementById(""form"+_StrCodeId + @""");
oFormElement= document.getElementById("codeId");
  oFormElement.value=intId;
  oFormObject.submit();
}
</SCRIPT> <form method="post" action="CodeAssessment.aspx" id="formcodeId">
<table name="codeId" id="codeId" value="0" type="hidden" class="linkTable">
<tr>
   <th>Completed</th><th>Code</th><th>Description</th><th>Code Present Since</th>
</tr><tr class="row">
<td><input name="401" type="checkbox" value="401" DISABLED /></td><td><a href="javascript:submitForm(0);">401</a></td><td>Missing Original Document/form</td><td>2009.10.16</td>
</tr><tr class="rowAlternate">
<td><input name="NDMI" type="checkbox" checked="checked" value="NDMI" DISABLED /></td>
<td><a href="javascript:submitForm(1);">NDMI</a></td>
<td>Note date is missing</td>    <td>2009.10.15</td>
</tr>
 </table><input type="submit" />
</form>
</div>
</form>
</body>
</html>

By changing the script line to oFormObject= document.forms[0];, the form submits the asp.net's viewstate form returning to the same page rather than the intended destination. This suggests that the rest of the code on the page is functioning properly.

Answer №1

We previously addressed this issue in a different response, utilizing comments. However, it may be beneficial to reiterate the solution in case others encounter the same challenge.

The key factor at play here is the presence of the runat="server" attribute within the form. This attribute generates the viewstate input, which becomes problematic when the form is submitted to a subsequent page. In such cases, the discrepancies between the two pages result in an error when attempting to handle the viewstate input.

To resolve this issue, one can opt to either eliminate the runat="server" attribute from the form or specify EnableViewStateMac="False" on the second page.

Answer №2

Personally, I prefer working with JavaScript over asp.net. It seems like there might be a parse error in the following code snippet:

oFormObject = document.getElementById("form" + _StrCodeId + "");

The issue here appears to be that the quotes don't match up correctly. To solve this, you could consider changing it to:

oFormObject = document.getElementById("formcodeId");

This adjustment should help resolve the problem.

Answer №3

It seems that nesting forms in html/DOM is not allowed. I had to modify my asp.net provided form and now it navigates successfully but crashes with the following error message:

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

<!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml" >
<head><link rel="stylesheet" type="text/css" href="DefectSeverity.css" /><title>
 Defect Severity Assessment Code List
</title></head>
<body>
<form name="form1" method="post" action="CodeAssessment.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJNjQzMTI3NjU4ZGSW2wNBW3eGztyO+Tftc5BB8A6cMg==" />
</div>

<div>
<p>Welcome Maslow</p><SCRIPT language="JavaScript">
function submitForm(intId)
{ oFormObject= document.forms[0];
oFormElement= document.getElementById("codeId");
oFormElement.value=intId;
oFormObject.submit();
}

</SCRIPT> <table name="codeId" id="codeId" value="0" type="hidden" class="linkTable">
<tr>
    <th>Completed</th><th>Code</th><th>Description</th><th>Code Present Since</th>
</tr><tr class="row">
    <td><input name="401" type="checkbox" value="401" DISABLED /></td>
<td><a href="javascript:submitForm(0);">401</a></td><td>Missing Original Document/form</td><td>2009.10.16</td>

</tr><tr class="rowAlternate">
    <td><input name="NDMI" type="checkbox" checked="checked" value="NDMI" DISABLED /></td>
<td><a href="javascript:submitForm(1);">NDMI</a></td><td>Note date is missing</td><td>2009.10.15</td>
</tr>
</table><input id="testSubmit" type="submit" />
</div>
</form>
</body>
</html>

Answer №4

Currently, I am not encountering any issues with the code you provided in your response. The only issue I am facing is that I do not have a CodeAssessment.aspx page, leading to an HTML404 error. Apart from that, everything seems to be working fine.

It is worth mentioning that the original code snippet you shared, which included document.getElementById("form"+_StrCodeId + @"""); was incorrect and there is no variable named StrCodeId present.

Instead, you can try the following:

oFormObject = document.getElementById("form" + intId);

Answer №5

After resolving the crashing issue, it appears that the problem stemmed from copying the source code and using it to recreate the outline. This may have caused the hidden input viewstate to be included in the page, which should not be manually added as it is automatically generated during the build process. To fix this, simply remove the following line:

<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJNjQzMTI3NjU4ZGSW2wNBW3eGztyO+Tftc5BB8A6cMg==" />
</div>

Answer №6

My dynamic code generation section has been removed.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html 
 PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml">
<head><link rel="stylesheet" type="text/css" href="DefectSeverity.css" /><title>
 Defect Severity Assessment Code List
</title><script type="text/javascript">
function submitForm(intId)
{ oFormObject= document.forms[0];
oFormElement= document.getElementById("codeId");
oFormElement.value=intId;
  oFormObject.submit();
}
</script> </head>
<body>
<form name="form1" method="post" action="CodeAssessment.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJMzMxMzk5NjY5ZGTQg8pLRPHaRM4Idd6LyKDmFvMpNA==" />
</div>

<div>
<input type="submit" />
</div>
</form>
</body>
</html>

There seems to be another unexpected div present again. I am unsure of its origin and continue to face issues with Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

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