Have you tried:
in html:
<input jwcid="@Hidden" value="ognl:myId" id="myId" />
in java:
public abstract class MyPage extends BasePage implements
PageBeginRenderListener {
public abstract Long getMyId();
public abstract void setMyId(Long id);
public void pageBeginRender(PageEvent event) {
MyObject myObject = getMyService().getMyObject();
/* set the hidden value */
setMyId(myObject.getMyId);
}
}
Hope it helps,
Jacob
Bastian Voigt wrote:
>
> Another question regarding tapestry programming style.
> Imagine I have a read-only property of some object which I need to include
> in
> a hidden field in a form so that the value is still there after posting
> the
> form. Since tapestry does not support read-only properties in forms, I
> need a
> second read-write property which takes care of storing the value after
> post.
>
> What I have done (inside a component class) looks like this:
>
> // my read only property which I want to include in the form
> @Parameter()
> public abstract Object getReadOnlyValue();
>
> // the property used for the form hidden field
> public Object getHiddenFormValue() {return getReadOnlyValue();}
> public void setHiddenFormValue(Object o) {setSomeOtherProperty(o);}
>
> // the property where tapestry can store the hidden field value
> // when submitting the form
> public abstract Object getSomeOtherProperty();
> public abstract void setSomeOtherProperty(Object o);
>
> // my form submit listener
> public void listener()
> {
> Object o = getSomeOtherProperty(); // allright, here is my value again
> }
>
>
> OK, it works, but IMO it is quite confusing and does not look so nice...
> Question: Are there better solutions for this problem?
>
> --
> Bastian Voigt
> Neumünstersche Straße 4
> 20251 Hamburg
> telefon 040/67957171
> mobil 0179/4826359
>
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