Expression in Alloy input tag

[Dirk Ulrich, geändert vor 12 Jahren.]

If I use an expression in the input tag like this

<input type="text" id="<%=CatalogueController.NEW_CATALOGUE_KEY_PREFIX%>_<%=CatalogueController.CATALOGUE_KEY %>" name="<%=CatalogueController.NEW_CATALOGUE_KEY_PREFIX%>_<%=CatalogueController.CATALOGUE_KEY %>">

it will be substituted well but using an expression in an Alloy tag like

<aui:input id="<%=CatalogueController.NEW_CATALOGUE_KEY_PREFIX%>_<%=CatalogueController.CATALOGUE_KEY %>" name="<%=CatalogueController.NEW_CATALOGUE_KEY_PREFIX%>_<%=CatalogueController.CATALOGUE_KEY %>" type="text" label="" value="" />

does not.

Why? How can I achieve the same result as using the first version?

[Dirk Ulrich, geändert vor 12 Jahren.]

It must be done this way:

<aui:input id="<%=CatalogueController.NEW_CATALOGUE_KEY_PREFIX+'_'+CatalogueController.CATALOGUE_KEY%>" name="<%=CatalogueController.NEW_CATALOGUE_KEY_PREFIX+'_'+CatalogueController.CATALOGUE_KEY%>" type="text" label="" value="" />