Thanks Ryan - this worked great.
Matt
<tr jwcid="@If" condition="ognl:user.version == null" element="tr">
<th><label jwcid="@FieldLabel"
field="ognl:components.usernameField">Username</label></th>
<td style="height: 20px"><input jwcid="usernameField"
type="text" id="username"/></td>
</tr>
<tr jwcid="@Else" element="tr">
<th><label jwcid="@Label" class="required"
key="user.username">Username</label></th>
<td style="height: 20px">
<span jwcid="@Insert" value="ognl:user.username"/>
<input jwcid="@Hidden" type="hidden"
value="ognl:user.username" id="username"/>
</td>
</tr>
On 4/1/06, Ryan Holmes <[EMAIL PROTECTED]> wrote:
> The problem is that the @FieldLabel component is rendered even if
> user.version is not null. This references the usernameField and causes
> it to be included in the validation delegate field tracking (or
> something along those lines). Try restructuring like this:
>
> <tr jwcid="@If" condition="ognl:user.version == null" element="tr">
> <th><label jwcid="@FieldLabel"
> field="ognl:components.usernameField">Username</label>:</th>
> <td><input jwcid="usernameField" type="text" id="username"/></td>
> </tr>
> <tr jwcid="@Else" element="tr">
> <th>Username</th>
> <td><span jwcid="@Insert" value="ognl:user.username"/>
> <input jwcid="@Hidden" type="hidden"
> value="ognl:user.username" id="username"/>
> </td>
> </tr>
>
> You can make this less redundant by using messages for your field
> labels. Instead of hard-coding "Username" in the @Else, use an Insert
> component to display a message and then use the same message key in your
> usernameField's displayName property. Also notice that the condition
> attribute does not need to be specified in an Else component.
>
> -Ryan
>
> Matt Raible wrote:
> > In Tapestry 3.0, I was able to show a text field when a field wasn't
> > populated, then hide it when it was.
> >
> > <tr>
> > <th>
> > <label jwcid="@FieldLabel"
> > field="ognl:components.usernameField">Username</label>
> > </th>
> > <td style="height: 20px">
> > <div jwcid="@contrib:FormConditional"
> > condition="ognl:user.version == null">
> > <input jwcid="usernameField" type="text" id="username"/>
> > </div>
> > <div jwcid="@contrib:FormConditional"
> > condition="ognl:user.version != null">
> > <span jwcid="@Insert" value="ognl:user.username"/>
> > <input jwcid="@Hidden" type="hidden"
> > value="ognl:user.username" id="username"/>
> > </div>
> > </td>
> > </tr>
> >
> > <component id="usernameField" type="ValidField">
> > <binding name="value" expression="user.username"/>
> > <binding name="validator" expression="beans.requiredValidator"/>
> > <message-binding name="displayName" key="user.username"/>
> > </component>
> >
> > In Tapestry 4.0, I've translated to the following for the new DTD and
> > deprecated components:
> >
> > <tr>
> > <th>
> > <label jwcid="@FieldLabel"
> > field="ognl:components.usernameField">Username</label>
> > </th>
> > <td style="height: 20px">
> > <div jwcid="@If" condition="ognl:user.version == null">
> > <input jwcid="usernameField" type="text" id="username"/>
> > </div>
> > <div jwcid="@Else" condition="ognl:user.version != null">
> > <span jwcid="@Insert" value="ognl:user.username"/>
> > <input jwcid="@Hidden" type="hidden"
> > value="ognl:user.username" id="username"/>
> > </div>
> > </td>
> > </tr>
> >
> > <component id="usernameField" type="TextField">
> > <binding name="value" value="user.username"/>
> > <binding name="validators" value="validators:required"/>
> > <binding name="displayName" value="message:user.username"/>
> > </component>
> >
> > However, when the field is hidden (the @Else logic executes), I get a
> > validation error:
> >
> > You must enter a value for Username.
> >
> > Is it possible to make the HTML in the @Else block have the same
> > componentId as usernameField?
> >
> > Thanks,
> >
> > Matt
> >
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> >
> >
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