Creating Declarative Component problem.

Question

Dear all
I use Jdeveloper 11.1.1.4.0.
I am planing to create an ADF declarative Component.The component will be a panel collection layout which contains menu (Action>Export to excel) and command button (Add new record).
The scenario will be like this:
1- The developer will drag my new component (myCustomPanel) to his page and will drag the data control inside this comonent to create ADF Read only table.
2- at runtime the table should appear surrounded by (myCustomPanel) and the user can use the "Action" menu to export the content to Excel, and can click on "Add new Record"to navigate to another page to add record.
The solution I made is:
in my "myCustomPanel" I created two attributes , the first one is "tableID" and the second is "targetPage" represents the outcome of the navigation to the "Add new record" page.
The developer must provide these two attributes when using "myCustomPanel".
The problem is:
at runtime when the user click on "Add new record" button an error is raised .
The error in this line:
<af:commandToolbarButton text="Add" id="dc_ctb1" action="#{attr.targetPage}"/>
the action property of the command button expects a managed bean. But i proved it with page attribute.
I want to dynamicly provides the naviation outcome to the button using attribute name. Is this possible?
regards

Answer 1

Thank you so much for you replying.
Your solution is helpful
I tried to do the following :
1- in my "customcomponent" project I removed the attribute "taregtPage"
2- I added a method attribute
name: targetPage
method-signature: java.lang.String method()
<af:componentDef var="attrs" componentVar="component">
    <af:panelCollection id="collection">
      <f:facet name="menus">
        <af:menu text="Action" id="dc_m1">
          <af:commandMenuItem text="Export To excel" id="dc_cmi1"/>
        </af:menu>
      </f:facet>
      <f:facet name="toolbar">
        <af:toolbar id="dc_t1">
          <af:commandToolbarButton text="Add" id="dc_add"
                                   action="#{attrs.targetPage}"/>
        </af:toolbar>
      </f:facet>
      <f:facet name="statusbar"/>
      <af:facetRef facetName="tableContent"/>
    </af:panelCollection>
    <af:xmlContent>
      <component xmlns="http://xmlns.oracle.com/adf/faces/rich/component">
        <display-name>dhamanTable</display-name>
        <facet>
          <facet-name>tableContent</facet-name>
        </facet>
        <attribute>
          <attribute-name>tableID</attribute-name>
          <attribute-class>java.lang.String</attribute-class>
          <required>true</required>
        </attribute>
        <component-extension>
          <component-tag-namespace>dhaman.custom</component-tag-namespace>
          <component-taglib-uri>/componentLib</component-taglib-uri>
          <method-attribute>
            <attribute-name>targetPage</attribute-name>
            <method-attribute>
              <attribute-name>targetPage</attribute-name>
              <method-signature>java.lang.String method()</method-signature>
            </method-attribute>
            <required>false</required>
          </method-attribute>
        </component-extension>
      </component>now My question is how to use it?
I do not understand this
action="#{component.handleTargetPage}" Do you mean that i will create amanaged bean "component" and add a methos "handleTargetPage"??
Edited by: ta**** on Mar 9, 2011 1:58 PM
Edited by: ta**** on Mar 9, 2011 2:00 PM
Edited by: ta**** on Mar 9, 2011 2:01 PM