Adapter error in input field

Question

Hi All,
In webdynpro program am having a button and a select option.
When i enter value in the select option and press GO button, my program has to fetch records into a UI table element in the same view. This is working perfectly.
But when i am leaving the select option as blank and then if i press GO button, it is throwing the following error.
Adapter error in INPUT_FIELD "INP_PONUMBER_MAP" of view "ZMRR_SCR.V_NEWBILL": Context binding of property VALUE cannot be resolved: Node V_NEWBILL.1.N_BILL_DETAILS does not contain any elements
Note that i ve an input field below the table in the same view, which is bound to a node of cardinality 0 to n and selection 0 to 1.
The button method is getting executed fully and after that control goes to the following line.
    when others.
      raise exception type Cx_Wd_Bad_Args
        exporting
          Parameter = `HANDLER_NAME`
          Argument =  Handler_Name.
Please help me. Thanks in advance

Answer 1

Hi,
You have a select option, button, table will be displayed(on button click) and a Input fieild right.
This Input field is bound to a context attribtue/noderight, then it should have some value in it. WHat is the cardinality
of this node.
This node should have 1:1 cardianlity as it  a input field.
Regards,
Lekha.