[jboss-user] [JBoss Seam] - duplicate Id for a component...

[nemya]

Hi,
Using Seam 1.2.1.GA + JBoss AS 4.0.5.GA, I have a xhtml page with a datatable. The number of columns of this table is variable. I use a jstl <c:foreach> in this datatable like this:
<h:form id="MyForm">
  | ...
  | <h:dataTable value="#{bean.var}" var="lineSimple">
  |   <h:column>
  |     <f:facet name="header">
  |       <h:outputText value="Activite" />
  |     </f:facet>
  |     <h:outputText value="#{lineSimple.lineDesignation}"/>
  |   </h:column>
  | 
  | <c:forEach items="#{bean.var.columnDataModel.wrappedData}"
  | var="columnSimple">
  |   <h:column>
  |     <f:facet name="header">										<h:outputText value="#{columnSimple.columnDesignation}"/>
  |     </f:facet>
  |    <h:inputText value="#{lineSimple.cellList[columnSimple.columnId].cellValue}"/>
  | ...
  | </c:forEach>
  | ...
  | </h:form>

All this is in a form with other inputs. My page uses a template with an Ajax menu that is also in a form. When I change the values of my inputs, the number of columns of the table increases. When I do it once it's ok but when I do it again I have this error:

duplicate Id for a component MyForm:_id914:_id44
										

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