Application Trip : Dropdownbykey

Hi all,
I m enhancing the application Trip on webdynpro/abap.
I want to delete the empty row from the drop down by Key from this UI-element (Destionations , Additional informations ..)
My UI element is binded to an attribute with a context that have a cartidanlity (1,1). and the null property is disabled.
Is there a specific method that add the empty row to these UI-elements ?
What can i do to delete this empty row from these standars UI-elements ?
References :
Web Dynpro Component: FITE_VC_GENERAL_DATA
View Information: GENERAL_DATA_VIEW
Information on Field
Field ID: TT_STATU
Type of UI Element: DROPDOWN_BY_KEY
UI Element Library: STANDARD
Best regards

Hi Jcrios,
I have two suggestions:
1) You can enable the NULL property of this attribute TT_STATU through code in a post_exit method as shown below:
Data : lr_node_info type ref to if_wd_context_node_info,
lr_node type ref to if_wd_context_node.
lr_node = wd_context->get_child_node( 'GENERAL_DATA_VIEW' ).
lr_node_info = lr_node->get_node_info( ).
lr_node_info->set_nullable( is_nullable = abap_true name = 'TT_STATU' ).
2) If the above thing does not solve the problem then you can try setting the valueset for this attribute in a Post exit method. This may or may not help as I am not aware when the framework inserts the empty row.
You can use the above code to get the node_info and then set the value set of this attribute using the
lr_node_info->set_attribute_value_set( ) method.
3) If you just want that on launch of this application the user should not see an empty value then ina post exit method, set the lead selection to some other element.
Please revert back in case of doubts/issues.
Regards,
Sumit

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