Binding data to dropdown by key i am getting the below error.

Question

here i am binding the cardinality  as  0ton  and i am getting this error. plz help me
Adapter error in DROPDOWN_BY_KEY "DDB_PLANT" of view "YWD_SD_SALESORDER.SALESHEAD_VIEW": Context binding of property SELECTED_KEY cannot be resolved: Node SALESHEAD_VIEW.1.LOCATION_NODE does not contain any elements

Answer 1

hi praveen,
bind the  DROPDOWN_BY_KEY ui element with an attribute which you want it to be associated
add an attribute for example VALUESET of type wdr_context_attr_value_list in this node and the cardinality of node must be 0:n.
after this . in the do init
here types is my attribute to which i bind my dropdown in selectedkey property.
DATA: LT_VALUESET TYPE STANDARD TABLE OF WDR_CONTEXT_ATTR_VALUE,
LS_VALUESET TYPE WDR_CONTEXT_ATTR_VALUE,
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( 'CTX_VN_ALV_TABLE' ).
LR_NODE_INFO = LR_NODE->GET_NODE_INFO( ).
LS_VALUESET-VALUE = 'FIRST VALUE'.
LS_VALUESET-TEXT = 'FIRST VALUE'.
APPEND LS_VALUESET TO LT_VALUESET.
LS_VALUESET-VALUE = 'second value'.
LS_VALUESET-TEXT = 'second value'.
APPEND LS_VALUESET TO LT_VALUESET.
LR_NODE_INFO->SET_ATTRIBUTE_VALUE_SET(
EXPORTING
NAME = 'TYPES'                                                         "attribute name
VALUE_SET = LT_VALUESET ).
doing this will solve your problem completely.
thanks and regards,
sahai.s