Dynamic objects in a tabstrip

Hi,
I am creating dynamically tabs in my tabstrip and that works fine so for. I found some examples in SDN and here for me to learn. Now I try to add a transparent container and some objects to it, but do not know how. This is so far my code in WDDOMODIFYVIEW:
some code here
* Create a new tab:
CONCATENATE 'TAB' wd_this->tot_tabs INTO aux_text.
lr_tab = cl_wd_tab=>new_tab( id = aux_text ).
lr_tabstrip->add_tab( the_tab = lr_tab ).
* Add a transparent container:
CONCATENATE 'TABCONT' wd_this->tot_tabs INTO aux_text.
lr_control = cl_wd_transparent_container=>new_transparent_container( id = aux_text
view = view ).
lr_tab->set_content( lr_control ).
TOT_TABS has the current number of the tab. System compiles the code correctly and activates it but when running the application I get this error message:
The following error text was processed in the system NSP : Access via 'NULL' object reference not possible.
The ABAP call stack was:
Method: CREATE_NW7_BY_VIEW_ELEMENT of program CL_NW7_VIEW_ELEMENT_ADAPTER===CP
Could it be maybe because I am not adding objects ?? I don´t know how anyway.

Hi Guillermo,
Welcome to SDN.
You can have dynamic tabs by placing the <htmlb:tabStripItem> in a loop in the layout:
<% loop at tabstrip_tab. %>
<htmlb:tabStripItem index="<%=tabstrip_tab-index%>" etc. />
<% endloop. %>
Where tabstrip_tab contains the details of the tabstrip items.
Regards,
Patrick.

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Are you looking for this?
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http://imageshack.us/photo/my-images/5/dynt.jpg/
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