Are you using class for ids?
If you have class="header" and are trying to do RootPanel.get
("header"), it would give you a NullPointerException..
On Sep 10, 6:37 pm, Ian Bambury <[email protected]> wrote:
> Take a backup
> Cut out everything except the basic HTML and the
> RootPanel.get("header").add(...
>
> If it still does it, post the exact code here.
>
> If not, go back and cut whole chunks out until it works. Then look at what
> you just cut out.
>
> Ian
>
> http://examples.roughian.com
>
> 2009/9/10 davis <[email protected]>
>
>
>
> > Hi, I've been coding a project for quite some time now. It has been
> > stable, and everything was working great, until this afternoon. I
> > have a file called Admin.html that has a few div tags:
>
> > <div id="header" align="center"></div>
> > <div id="button-row" align="center"></div>
> > <div id="content" align="center"></div>
> > <div id="footer" align="center"></div>
>
> > This was working fine for a long time. A lot of code has changed
> > recently...some re-factoring, etc. If I knew specifically what change
> > caused the problem, I wouldn't be asking for help. It doesn't make
> > any sense to me.
>
> > The problem is that something like RootPanel.get("header").add(...
> > triggers NullPointerException.
>
> > In the browser (FF or IE), if I do View Page Source, I see my four DIV
> > elements. But if I debug it in FireBug, I see that the footer div is
> > there but the others are not:
>
> > <body class="page-body">
> > <div id="footer"><table cellspacing="0" cellpadding="0" style="height:
> > 5%; width: 100%;" class="footer-panel"><tbody><tr><td align="center"
> > style="vertical-align: top;"><table style="width: 40%; height:
> > 100%;"><colgroup><col/></colgroup><tbody><tr><td align="center"
> > style="vertical-align: top;"><div class="footer">Copyright © 2009
> > Footer Text Here. All Rights Reserved.</div></td></tr><tr><td
> > align="center" style="vertical-align: top;"><div class="footer">Header
> > Text Here</div></td></tr></tbody></table></td></tr></tbody></table></
> > div>
>
> > <!-- OPTIONAL: include this if you want history support -->
> > <iframe style="border: 0pt none ; position: absolute; width: 0pt;
> > height: 0pt;" tabindex="-1" id="__gwt_historyFrame"
> > src="javascript:''"/>
>
> > <iframe src="javascript:''" id="com.example.audit.das.Admin"
> > style="border: medium none ; position: absolute; width: 0pt; height:
> > 0pt;" tabindex="-1"/></body>
>
> > I'm running out of ideas on this one...any clues?
>
> > Regards,
> > Davis
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