How to identify if a data node exist?

Hi,
If a form is binded to a schema, and when the xml is supplied to the form how to identify an optional node in the xml is available or not.
for example if I have a XML input like below
<root>
     <childTable>
          <childRow>
               <child1>
               <child2>
          </childRow>
          <childRow>
               <child1>
               <child2>
          </childRow>
     </childTable>
</root>
is it possible to identify if the childTable node is present in the xml input.
The code xfa.datasets.data.root.childTable if used fails when the childTable is not present in the input xml?
Please let me know if there is a way to identify if the input xml has a specified node. Assuming that we know the path of the node in the xml structure.
Regards -
Ashok Deivaisgamani

Hi Ashok,
Could you please try this?
var nodeCheck = xfa.resolveNode("$record.childTable");
if(nodeCheck != null)
app.alert("Node Exists");
else
app.alert("Node Not Avaliable");
Thanks,
VJ

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Message was edited by:
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Introduction
The following tables identify and describe the valid data element types that may be specified for the -type option. The first table covers some general data element types. The remaining tables cover data element types specific to each diagram type identified in the Diagram Types table above.
General Data Element Types
The following table covers some general data element types.
Data Element Type Description
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Class Classes on CDs, CCDs, and STDs
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External Actors on CCDs and DFDs
Flow Control Flows, Data Flows, Result Flows, and Update Flows
Interface Communication Messages, Control Flows, Data Flows, Event Messages, Result Flows, and Update Flows
Message Communication Messages and Event Messages
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Data Element Type Description
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AssocClass Association Classes
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CDComposition Compositions on CDs
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CDInterface Interfaces on CDs
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Data Element Type Description
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Data Element Type Description
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CODActor Actors on CODs
CODMessage MEssages on CODs
MultiObject MultiObjects
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CPD Data Element Types
The following table identifies and describes the data element types for the Component Diagram (CPD).
Data Element Type Description
CPDComponent Components on CPDs
CPDInterface Interfaces on CPDs
DFD Data Element Types
The following table identifies and describes the data element types for the Data Flow Diagram (DFD).
Data Element Type Description
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DataFlow Data Flows
DataProcess Data Processes
DataStore Data Stores
DFDActor Actors on DFDs
ResultFlow Result Flows
UpdateFlow Update Flows
DPD Data Element Types
The following table identifies and describes the data element types for the DeploymentDiagram (DPD).
Data Element Type Description
ActiveObject ActiveObjects
Connection Connections
DPDActiveObject Active Objects on DPDs
DPDComponent Components on DPDs
DPDObject Objects on DPDs
Node Nodes
NodeInstance Node Instances
MGD Data Element Types
The following table identifies and describes the data element types for the Message Generalization Diagram (MGD).
Data Element Type Description
MessageDef Message Definitions
SD Data Element Types
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Data Element Type Description
Object Objects
SDInitiator Initiators on SDs
SDMessage Messages on SDs
SDObject Objects on SDs
STD Data Element Types
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Data Element Type Description
CDClass Classes on CDs associated with the STD
EventMessage Event Messages
STDAction Actions on STDs
STDClass Classes on STDs
STDEvent Events on STDs
STDState States on STDs
UCD Data Element Types
The following table identifies and describes the data element types for the Use Case Diagram (UCD)
Data Element Type Description
DirectedComm Directed Communication Association
UCDActor Actors on UCDs
UndirectedComm Undirected Communication Association
UseCase Use Cases
Reward If Helpful
Regards Madhu

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How to identify if a data node exist?

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