Set value attribute of a node

[Former Member]

Hi all,

I am trying to set the default value of a dropdown by key.

My context node structure is

My_Node

- My_NodeAttribute

My dropdown by key is binded to My_NodeAttribute and is displaying all the values.But the initial value is blank.So I am using the following code to set the default value in the dropdown,

data: data: LO_My_NodeELE type ref to if_wd_context_element.

CALL METHOD LO_My_NodeELE->SET_ATTRIBUTE

EXPORTING

NAME = 'My_NodeAttribute'

VALUE = 'XYZ'

.

Its not giving me any syntax errors but at runtime I m getting the following error:

Access via 'NULL' object reference not possible.

The node Cardinality is 1-1,selection - 0-1.

Please advise.

Thanks

Kukku

[Former Member · Accepted solution]

Hi,

Does the domain has the fixed values or you are populating the values.

The cardinality of the node should be 1:N or 0:N to hold the mutliple values for the dropdown.

Is this the part of the selection fields.

Check ST22 for the detailed error analysis. I think the context element reference is not there.

Regards,

Lekha.

[Former Member · Accepted solution]

Hello Lekha,

Thank you for your immediate response.I was able to solve my problem by setting the default value of the value attribute in the properties.The cardinality is changed to 1-n.

Thanks

Kukku