Certain javascript commands are experiencing difficulties when used in conjunction with IIS 7 and Windows 2008

My code was running smoothly on Windows 2003 & IIS 6:

javascript:window.opener.document.formConfirmation.textBoxDateFrom.value = '01/01/2011';

However, when I tried it on Windows 2008 with IIS 7, it didn't work!

I am unable to modify the code above because it is generated from a calendar DLL that I don't have access to. I'm wondering if there's a setting in IIS that is preventing some Javascript functions from working properly. If that's the case, what steps can I take to make the code work as it did before?

Just so you know, this line doesn't work in IIS 7:

document.Form1.txtAlias.value;

but this one works in IIS 7:

document.getElementById('txtAlias').value;

Both of these lines functioned correctly in IIS 6!!! Can anyone shed light on this issue? Any assistance would be greatly appreciated as I try to recover the time I've spent troubleshooting...

c#javascriptasp.netwindowsiis-7

Answer №1

The reason for the issue is that you have hardcoded the control names, but these names are likely dynamically generated by asp.net. It's possible to configure them not to change dynamically at render time.

To resolve this, update your control id with <%=Control.ClientID%> or utilize another method to access the values of your controls.

For instance:

document.getElementById('<%=txtAlias.ClientID%>').value

or 

javascript:window.opener.document.<%=Form.ClientID%>.<%=textBoxDate.ClientID%>.value = '01/01/2011';

In this segment of your code document.Form1.txtAlias.value;, it's likely that the Form1 has been renamed and not the txtAlias.

  • Another potential solution if you're using asp.net version 4 is to employ static id names for your controls.

  • A helpful tip is to right-click on your pages in your web browser and view the source code to see how your control ids are rendered.

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