Pulling particular attributes from the XML Object

Question

Hi !
My requirement is onChange of a value from the first drop down, particular values needs to load in the second drop down. Values that needs to pull are designed in XML Object as Map entries Key,Pair Values.
We can pull the first drop down values from the XML Object using Rule library and find the following code snippet ;
<block>
<set name='appData'>
<invoke name='getExtension'>
<invoke name='getObject'>
<ref>ctx</ref>
<invoke name='findType' class='com.waveset.object.Type'>
<s>Configuration</s>
</invoke>
<s>Config_SDD_ReferenceData</s>
</invoke>
</invoke>
</set>
<ref>appData</ref>
</block>
Here, Config_SDD_ReferenceData.xml is the file where the map entries are written and the ref name is appData. Later in BPE the code "appData.units" are referred in ValueMap property.
But we are stuggling to populate the second drop down values based on the valu selected in the first drop down.
Please find the XML Object also;
<Attribute name='units'>
<Map>
<MapEntry key='1' value='units1'/>
<MapEntry key='2' value='units2'/>
<MapEntry key='3' value='units3'/>
</Map>
</Attribute>
Thanks in advance.

Answer 1

u could use removeChild() method of the node interface....get the parent node named 'xxxxxx' from the DOM and perform a removeChild operation on it specifying the senderID, receiverID and dateTimeStamp Nodes as arguments to the method....
Hope this helps
VP