Your understanding of value binding syntax is incorrect.
Try this:
<t:dataTable value="#{myBean.boolean ? oneBean.dataModel :
anotherBean.dataModel}"
I can't think of any reason why this won't work.
On 5/31/07, Rønnevik, Eivind <[EMAIL PROTECTED]> wrote:
Hi!
I was just curious, is there any way I can change the value of a dataTable
based on different conditions?
I'll try to give a simple example to explain what I want. :)
Let's say I use the graphicImage tag, in the value property I could either
write the path to the image
<t:graphicImage value="/images/myImage.gif"
Or I can use an expression that returns a String pointing to the image
<t:graphicImage value#{myBean.pathToImage}"
I have the need of using the same jsp twice, but based on a boolean property
the datasource for the dataTable on this page would differ.
Theoretically, this way of setting the value-property would represent what I
would want to do:
<t:dataTable value="#{myBean.boolean ? '#{oneBean.dataModel}' : '#{
anotherBean.dataModel}'}"
This would work if the value property expected a String, but instead it
expects an expression that directly points to a collection of some sort.
I also tried to point to a method in my bean that returns the correct
value-string based on the Boolean:
<t:dataTable value="#{myBean.tableValue
where the getTableValue-method is like this:
public String getTableValue()
{
if(condition)
return "#{oneBean.dataModel}";
return "#{anotherBean.dataModel}";
}
But of course this fails since the dataTable expects a collection and not a
String.
I know that I in my getTableValue-method can return the proper collection:
public DataModel getTableValue()
{
if(condition)
return getOneBean().getDataModel();
return getAnotherBean().getDataModel();
}
but then I would have to set the references to these other beans, and I
can't do that because it would cause a cyclic reference..
So, are there other solutions to this or do I have to rethink my way of
doing this? :)
Regards,
Eivind
