[Extension Xml] XmlNodeList_Count always return zero

Rogério Braudes

Question

Hi, i have the xml above:

<?xml version="1.0" encoding="utf-8"?>
<Package xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="https://www.w3.org/2001/XMLSchema" Id="2b73fbcf-5e9a-4555-8af9-b58fa7e3aa10" Name="Diagrama 1" xmlns="https://www.wfmc.org/2009/XPDL2.2">
<PackageHeader>
 <XPDLVersion>2.2</XPDLVersion>
 <Vendor>Bizagi Process Modeler.</Vendor>
 <Created>2013-04-23T17:20:15.7375815-03:00</Created>
 <ModificationDate>2013-11-06T10:16:11.113171-02:00</ModificationDate>
 <Description>Diagrama 1</Description>
 <Documentation />
</PackageHeader>
<RedefinableHeader>
 <Author>fvieira</Author>
 <Version>1.0</Version>
 <Countrykey>CO</Countrykey>
</RedefinableHeader>
<ExternalPackages />
<Participants>
 <Participant Id="f2a3323a-2fad-4f64-aa87-86a9a13cdf2a" Name="Todos">
 <ParticipantType Type="ROLE" />
 <Description />
 <ExtendedAttributes>
 <ExtendedAttribute Name="Todos" />
 </ExtendedAttributes>
 </Participant>
 <Participant Id="d8cad53b-7dfd-4e82-aaba-a04e0f08045d" Name="Teste@Area1">
 <ParticipantType Type="ROLE" />
 <Description />
 <ExtendedAttributes>
 <ExtendedAttribute Name="Teste_x0040_Area1" />
 </ExtendedAttributes>
 </Participant>
</Participants>
<Pools>
 <Pool Id="2dacec74-9f24-419c-b329-0877d150831b" Name="Processo principal" Process="4be4c249-ef3d-46bd-bd35-e2e706c93482" BoundaryVisible="false">
 <Lanes />
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="350" Width="700" BorderColor="-16777216" FillColor="-1">
 <Coordinates XCoordinate="0" YCoordinate="0" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 </Pool>
 <Pool Id="c2661de1-cfc5-4880-b804-f6ff702c5344" Name="Processo 1" Process="5c94ec7e-14d9-4bd6-b6f6-dad55b6b0777" BoundaryVisible="true">
 <Lanes />
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="350" Width="862" BorderColor="-16777216" FillColor="-1">
 <Coordinates XCoordinate="32" YCoordinate="30" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 </Pool>
</Pools>
<Associations />
<Artifacts />
<WorkflowProcesses>
 <WorkflowProcess Id="4be4c249-ef3d-46bd-bd35-e2e706c93482" Name="Processo principal">
 <ProcessHeader>
 <Created>2013-11-06T10:21:29.579171-02:00</Created>
 <Description />
 </ProcessHeader>
 <RedefinableHeader>
 <Author />
 <Version />
 <Countrykey>CO</Countrykey>
 </RedefinableHeader>
 <ActivitySets />
 <DataInputOutputs />
 <ExtendedAttributes />
 </WorkflowProcess>
 <WorkflowProcess Id="5c94ec7e-14d9-4bd6-b6f6-dad55b6b0777" Name="Processo 1">
 <ProcessHeader>
 <Created>2013-11-06T10:21:29.579171-02:00</Created>
 <Description />
 </ProcessHeader>
 <RedefinableHeader>
 <Author />
 <Version />
 <Countrykey>CO</Countrykey>
 </RedefinableHeader>
 <ActivitySets />
 <DataInputOutputs />
 <Activities>
 <Activity Id="37c9d1de-9976-47fb-b075-090bd3b7af32" Name="Início">
 <Description>Descrição do início do processo.</Description>
 <Event>
 <StartEvent Trigger="None" />
 </Event>
 <Documentation>Descrição do início do processo.</Documentation>
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="30" Width="30" BorderColor="-10311914" FillColor="-1638505">
 <Coordinates XCoordinate="122" YCoordinate="176" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 <ExtendedAttributes />
 </Activity>
 <Activity Id="a0f5e35c-2d10-44b4-beea-a3db3ceca5d6" Name="Tarefa 1">
 <Description> Descricao da tarefa 1</Description>
 <Implementation>
 <Task />
 </Implementation>
 <Performers>
 <Performer>d8cad53b-7dfd-4e82-aaba-a04e0f08045d</Performer>
 <Performer>f2a3323a-2fad-4f64-aa87-86a9a13cdf2a</Performer>
 </Performers>
 <Documentation> Descricao da tarefa 1</Documentation>
 <Loop LoopType="None" />
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="60" Width="90" BorderColor="-16553830" FillColor="-1249281">
 <Coordinates XCoordinate="220" YCoordinate="161" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 <ExtendedAttributes>
 <ExtendedAttribute Name="Quantidade:NumeroInteiro" Value="" />
 </ExtendedAttributes>
 </Activity>
 <Activity Id="1492f526-3408-47cf-be5a-b8b859926f96" Name="Decisão">
 <Description>Descrição da decisão</Description>
 <Route />
 <Documentation>Descrição da decisão</Documentation>
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="40" Width="40" BorderColor="-5855715" FillColor="-52">
 <Coordinates XCoordinate="376" YCoordinate="171" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 <ExtendedAttributes />
 </Activity>
 <Activity Id="c68d8729-5be0-4032-985f-3aec82cb64aa" Name="Tarefa 2">
 <Description />
 <Implementation>
 <Task />
 </Implementation>
 <Performers>
 <Performer>f2a3323a-2fad-4f64-aa87-86a9a13cdf2a</Performer>
 </Performers>
 <Documentation />
 <Loop LoopType="None" />
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="60" Width="90" BorderColor="-16553830" FillColor="-1249281">
 <Coordinates XCoordinate="602" YCoordinate="97" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 <ExtendedAttributes>
 <ExtendedAttribute Name="Quantidade:NumeroInteiro" Value="" />
 </ExtendedAttributes>
 </Activity>
 <Activity Id="1c3af4e1-063c-4f70-a440-06c5e1769450" Name="Tarefa 3">
 <Description />
 <Implementation>
 <Task />
 </Implementation>
 <Performers />
 <Documentation />
 <Loop LoopType="None" />
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="60" Width="90" BorderColor="-16553830" FillColor="-1249281">
 <Coordinates XCoordinate="601" YCoordinate="225" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 <ExtendedAttributes>
 <ExtendedAttribute Name="Quantidade:NumeroInteiro" Value="" />
 </ExtendedAttributes>
 </Activity>
 <Activity Id="2cbdd359-7d07-4bc5-8ab0-a2b9a3af2a02" Name="Fim">
 <Description>Descrição do fim do processo.</Description>
 <Event>
 <EndEvent Result="None" />
 </Event>
 <Documentation>Descrição do fim do processo.</Documentation>
 <NodeGraphicsInfos>
 <NodeGraphicsInfo ToolId="BizAgi_Process_Modeler" Height="30" Width="30" BorderColor="-6750208" FillColor="-1135958">
 <Coordinates XCoordinate="773" YCoordinate="184" />
 </NodeGraphicsInfo>
 </NodeGraphicsInfos>
 <ExtendedAttributes />
 </Activity>
 </Activities>
 <Transitions>
 <Transition Id="073f6367-d844-4b74-acb5-cc3f769a8c10" From="37c9d1de-9976-47fb-b075-090bd3b7af32" To="a0f5e35c-2d10-44b4-beea-a3db3ceca5d6">
 <Condition />
 <Description />
 <ConnectorGraphicsInfos>
 <ConnectorGraphicsInfo ToolId="BizAgi_Process_Modeler" BorderColor="-16777216">
 <Coordinates XCoordinate="152" YCoordinate="191" />
 <Coordinates XCoordinate="220" YCoordinate="191" />
 </ConnectorGraphicsInfo>
 </ConnectorGraphicsInfos>
 <ExtendedAttributes />
 </Transition>
 <Transition Id="00bdd1c5-6821-4a04-a584-a3edc82f78de" From="a0f5e35c-2d10-44b4-beea-a3db3ceca5d6" To="1492f526-3408-47cf-be5a-b8b859926f96">
 <Condition />
 <Description />
 <ConnectorGraphicsInfos>
 <ConnectorGraphicsInfo ToolId="BizAgi_Process_Modeler" BorderColor="-16777216">
 <Coordinates XCoordinate="310" YCoordinate="191" />
 <Coordinates XCoordinate="376" YCoordinate="191" />
 </ConnectorGraphicsInfo>
 </ConnectorGraphicsInfos>
 <ExtendedAttributes />
 </Transition>
 <Transition Id="ad644ae6-55e6-4ab5-84bb-d58544cbdf53" From="1492f526-3408-47cf-be5a-b8b859926f96" To="c68d8729-5be0-4032-985f-3aec82cb64aa" Name="Quantidade > 100">
 <Condition Type="CONDITION">
 <Expression>Quantidade > 100</Expression>
 </Condition>
 <Description>&nbsp;</Description>
 <ConnectorGraphicsInfos>
 <ConnectorGraphicsInfo ToolId="BizAgi_Process_Modeler" BorderColor="-16777216">
 <Coordinates XCoordinate="416" YCoordinate="191" />
 <Coordinates XCoordinate="442" YCoordinate="191" />
 <Coordinates XCoordinate="442" YCoordinate="127" />
 <Coordinates XCoordinate="602" YCoordinate="127" />
 </ConnectorGraphicsInfo>
 </ConnectorGraphicsInfos>
 <ExtendedAttributes />
 </Transition>
 <Transition Id="f106ef45-ac4c-4c16-b803-a04cb85ad41f" From="1492f526-3408-47cf-be5a-b8b859926f96" To="1c3af4e1-063c-4f70-a440-06c5e1769450" Name="Quantidade < 100">
 <Condition Type="CONDITION">
 <Expression>Quantidade <= 100</Expression>
 </Condition>
 <Description>&nbsp;</Description>
 <ConnectorGraphicsInfos>
 <ConnectorGraphicsInfo ToolId="BizAgi_Process_Modeler" BorderColor="-16777216">
 <Coordinates XCoordinate="416" YCoordinate="191" />
 <Coordinates XCoordinate="441.5" YCoordinate="191" />
 <Coordinates XCoordinate="441.5" YCoordinate="255" />
 <Coordinates XCoordinate="601" YCoordinate="255" />
 </ConnectorGraphicsInfo>
 </ConnectorGraphicsInfos>
 <ExtendedAttributes />
 </Transition>
 <Transition Id="c84285cc-b60b-4521-b8cf-1d9bd411d2fe" From="1c3af4e1-063c-4f70-a440-06c5e1769450" To="2cbdd359-7d07-4bc5-8ab0-a2b9a3af2a02">
 <Condition />
 <Description />
 <ConnectorGraphicsInfos>
 <ConnectorGraphicsInfo ToolId="BizAgi_Process_Modeler" BorderColor="-16777216">
 <Coordinates XCoordinate="691" YCoordinate="255" />
 <Coordinates XCoordinate="719.5" YCoordinate="255" />
 <Coordinates XCoordinate="719.5" YCoordinate="199" />
 <Coordinates XCoordinate="773" YCoordinate="199" />
 </ConnectorGraphicsInfo>
 </ConnectorGraphicsInfos>
 <ExtendedAttributes />
 </Transition>
 <Transition Id="eaaa7484-94e4-4276-b00c-854c5dc969f9" From="c68d8729-5be0-4032-985f-3aec82cb64aa" To="2cbdd359-7d07-4bc5-8ab0-a2b9a3af2a02">
 <Condition />
 <Description />
 <ConnectorGraphicsInfos>
 <ConnectorGraphicsInfo ToolId="BizAgi_Process_Modeler" BorderColor="-16777216">
 <Coordinates XCoordinate="692" YCoordinate="127" />
 <Coordinates XCoordinate="722.5" YCoordinate="127" />
 <Coordinates XCoordinate="722.5" YCoordinate="199" />
 <Coordinates XCoordinate="773" YCoordinate="199" />
 </ConnectorGraphicsInfo>
 </ConnectorGraphicsInfos>
 <ExtendedAttributes />
 </Transition>
 </Transitions>
 <ExtendedAttributes />
 </WorkflowProcess>
</WorkflowProcesses>
<ExtendedAttributes />
</Package>

I get the root element with XmlDocument_GetRootElement and pass it as argument to the function XmlElement_SelectNodes with the XPath "\\Participant". It seems that the Action found the nodes but when I pass the result to the XmlNodeList_Count, it returns zero. The same behavior happens when I try to read the WorkflowProcess node.

What am I doing wrong?

06 Nov 2013

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