ListBox causes dump only in MVC

Question

Hi,
I have a working ListBox that is working in a "regular" BSP.
I copied this app to an MVC type BSP and I am trying to do the same.
The problem is that I get a dump on a listBox command.
The dump is: ASSIGN_TYPE_CONFLICT
"Type conflict in the ASSIGN statement in the program CL_HTMLB_LISTBOX==============CP "
It is definitely from the listBox.
I stripped down the code until I got the HTMLB:
                    <htmlb:listBox id                = "agg_number"
                                   table             = "//model/agg_list"
                                   nameOfKeyColumn   = "AGG_KEY"
                                   nameOfValueColumn = "NAME"
                                   multiple          = "true"
                                   size              = "12" />
the definition is:
agg_list TYPE TP_AGG_LIST_TBL
the type is:
       begin of tp_agg_list,
         AGG_KEY type kunnr,
         NAME        type NAME1_GP,
         ACCOUNT type HKONT,
       end of tp_agg_list,
       tp_agg_list_tbl  type standard table of tp_agg_list,
       tp_agg_tbl       type standard table of kunnr
I have no idea why it is dumping.
I think that the code is right and it is working in a different app.
Do you have any ideas?
Thanks,
Itay

Answer 1

Hi ,
In the list box "Selection" or "Selections" is missing .
Without this , you cannot get the selected values.
Please check this.
<htmlb:listBox id = "agg_number"
           table = "//model/agg_list"
           nameOfKeyColumn = "AGG_KEY"
           nameOfValueColumn = "NAME"
           multiple = "true"
           size = "12"
           selection
           selections --- string table />
Reward if useful.
Regards
Meikandan