hmmm... the hierarchies seem to match. The only weird things I see
are that your img tags are unclosed (Wicket may require valid xml
templates -- I'm not sure because I always use xhtml) and your call
to add the topForm component uses an explicit "this" reference. I
can't remember if "this" with a method call does nothing or if it can
actually interfere with dynamic binding. Either way, you don't want
to do it. Just call "add(topForm)".
If neither of those suggestions work (and I kind of doubt they will),
think about whether your page's superclass might be causing the
problem. For instance, a weird markup inheritance scenario could
conceivably cause this.
-Ryan
On Sep 9, 2007, at 9:58 PM, Kevin Liu wrote:
I have a html page that displays "welcome ,XXX" ,or something like
that, the "XXX" is the current user name, and I use Label to
display it. But there is an exception when it runs.
Unable to find component with id 'userName' in [MarkupContainer
[Component id = _relative_path_prefix_14, page =
com.cmip.web.pages.TopFrame, path =
3:topForm:_relative_path_prefix_13:_relative_path_prefix_14.WebMarkupC
ontainer, isVisible = true, isVersioned = true]]. This means that
you declared wicket:id=userName in your markup, but that you either
did not add the component to your page at all, or that the
hierarchy does not match.
The code:
public TopFrame(){
super();
String name = ((CMIPSession)this.getSession()).getUser
().getUserName();
Label userName = new Label("userName",new Model(name));
Form topForm = new Form("topForm");
topForm.add(userName);
this.add(topForm);
html:
<body style="padding: 0px 0px 0px 0px;margin: 0px 0px 0px 0px;">
<form wicket:id="topForm">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="485"><img src="images/logo_top.gif" width="485"
height="85"></td>
<td background="images/bg_top.gif"> </td>
<td width="260" align="right" background="images/bg_top.gif">
<table width="242" height="80" border="0" cellpadding="5"
cellspacing="0">
<tr valign="top">
<td colspan="2" align="right" class="whiteText">°æ±¾ºÅ£ºV1.0</td>
</tr>
<tr align="center">
<td height="37"><a href="Main.html"
target="mainframe"><img src="images/button_desktop.gif" width="112"
height="27" border="0" alt="·µ»ØÖ÷Ò³"
onClick="javascript:self.location='Top.html'"></a></td>
<td><a href="../public/Logout.html"
target="mainframe"><img src="images/button_logout.gif" width="112"
height="27" border="0"></a></td>
</tr>
</table>
</td>
</tr>
</table>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="485" height="1"><img src="images/spacer.gif"
width="1" height="1"></td>
</tr>
<tr bgcolor="#38E089">
<td height="4"><img src="images/spacer.gif" width="4"
height="4"></td>
</tr>
<tr>
<td height="1"><img src="images/spacer.gif" width="1"
height="1"></td>
</tr>
<tr background="images/bg_3D_bar.gif">
<td height="28" background="images/bg_3D_bar.gif"><table
width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="140" align="center" class="whiteText"><span
id="serverTime"> </span></td>
<td width="2"><img src="images/pic_shr.gif" width="2"
height="23"></td>
<td><table width="316" border="0" cellspacing="0"
cellpadding="1">
<tr>
<td width="28"> </td>
<td width="284" align="center" class="welcomeBox">
¡¡ Welcome <label wicket:id="userName"></label>
</td>
</tr>
</table></td>
</tr>
</table></td>
</tr>
</table>
<script language="javascript">
updateTime();
</script>
</form>
</body>
-Kevin Liu
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