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Posted to users@tapestry.apache.org by Eng Lark Eric Tan <ne...@yahoo.com.hk> on 2005/06/20 11:56:49 UTC
Why my Foreach fail?
Dear all,
I have prepare "allLink" in 3 parts. Why it still have
error? Looking forward for your comment.
Eric Tan
Unable to resolve expression 'allLink' for
page.Main@19f5e3f[Main].
binding: ExpressionBinding[Main allLink]
location: context:/WEB-INF/Main.page, line 44, column
54
ognl.NoSuchPropertyException
allLink
Main.page
...
<component id="foreach" type="Foreach">
<binding name="source" expression="allLink"/>
</component>
<component id="link" type="PageLink">
<static-binding name="page" value="UsrMain"/>
</component>
...
Main.html
<span jwcid="foreach">
<span jwcid="link"/>
</span>
Main.java
public List getAllLink() {
allLink = new ArrayList();
allLink.add("Page1");
allLink.add("Page2");
allLink.add("Page3");
return allLink;
}
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RE: Why my Foreach fail?
Posted by Eng Lark Eric Tan <ne...@yahoo.com.hk>.
Thank you very much!
Finally, I find out the reason. It is a stupid bug.
.java
public abstract class MyPage extends BasePage{
}
.page
<page-specification
class="org.apache.tapestry.html.BasePage">
I should
<page-specification class="pkg.MyPage">
Ah!! It takes me serveral hours to find out this
bug!!!
--- "seloha ." <se...@hotmail.com> 說：
> I think what you need is something like this:
>
> in .page:
>
> <property name="aLink" type="java.lang.String"/>
>
> <component id="foreach" type="Foreach">
> <binding name="source"
> expression="allLink"/>
> <binding name="value" expression="aLink"/>
> </component>
>
> in .html:
>
> <span jwcid="foreach">
> <span jwcid="@Insert" value="ognl:aLink"/>
> </span>
>
>
> in .java:
>
> public abstract String getALink();
> public abstract void setALink(String aLink);
>
> This may not be spot on but I think the problem is
> that you need a value in
> the foreach to set each iteration to, you then use
> this to display what you
> want.
>
> Paul
>
>
> Eng Lark Eric Tan <ne...@yahoo.com.hk> wrote:
>
> Dear all,
>
> I have prepare "allLink" in 3 parts. Why it still
> have
> error? Looking forward for your comment.
>
> Eric Tan
>
> Unable to resolve expression 'allLink' for
> page.Main@19f5e3f[Main].
> binding: ExpressionBinding[Main allLink]
> location: context:/WEB-INF/Main.page, line 44,
> column
> 54
>
> ognl.NoSuchPropertyException
> allLink
>
> Main.page
>
> ...
> <component id="foreach" type="Foreach">
> <binding name="source"
> expression="allLink"/>
> </component>
> <component id="link" type="PageLink">
> <static-binding name="page"
> value="UsrMain"/>
> </component>
> ...
>
> Main.html
> <span jwcid="foreach">
> <span jwcid="link"/>
> </span>
>
> Main.java
>
> public List getAllLink() {
> allLink = new ArrayList();
> allLink.add("Page1");
> allLink.add("Page2");
> allLink.add("Page3");
> return allLink;
> }
>
>
>
>
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> To unsubscribe, e-mail:
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> For additional commands, e-mail:
> tapestry-user-help@jakarta.apache.org
>
>
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RE: Why my Foreach fail?
Posted by "seloha ." <se...@hotmail.com>.
I think what you need is something like this:
in .page:
<property name="aLink" type="java.lang.String"/>
<component id="foreach" type="Foreach">
<binding name="source" expression="allLink"/>
<binding name="value" expression="aLink"/>
</component>
in .html:
<span jwcid="foreach">
<span jwcid="@Insert" value="ognl:aLink"/>
</span>
in .java:
public abstract String getALink();
public abstract void setALink(String aLink);
This may not be spot on but I think the problem is that you need a value in
the foreach to set each iteration to, you then use this to display what you
want.
Paul
Eng Lark Eric Tan <ne...@yahoo.com.hk> wrote:
Dear all,
I have prepare "allLink" in 3 parts. Why it still have
error? Looking forward for your comment.
Eric Tan
Unable to resolve expression 'allLink' for
page.Main@19f5e3f[Main].
binding: ExpressionBinding[Main allLink]
location: context:/WEB-INF/Main.page, line 44, column
54
ognl.NoSuchPropertyException
allLink
Main.page
...
<component id="foreach" type="Foreach">
<binding name="source" expression="allLink"/>
</component>
<component id="link" type="PageLink">
<static-binding name="page" value="UsrMain"/>
</component>
...
Main.html
<span jwcid="foreach">
<span jwcid="link"/>
</span>
Main.java
public List getAllLink() {
allLink = new ArrayList();
allLink.add("Page1");
allLink.add("Page2");
allLink.add("Page3");
return allLink;
}
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