Forum Discussion

dicas's avatar
dicas
Occasional Contributor
5 years ago

FindChild : Error: The object does not support this property or method

Hello, I tried to refactor my code with this below function, but i get the error in subject, when i try to access FindEx from Project.Variables.objstudioprocess When I set a breakpoint at this ...
  • tristaanogre's avatar
    tristaanogre
    5 years ago

    To answer your question:

     

    Project.Variables.variableName is not defined because there isn't a variable named variableName.  There is a variable with the name that is the content of variableName.  

     

    So, let's say variableName is "myVariable".  Then you would reference it as Project.Variables.myVariable or Project.Variables.VariableByName("myVariable").

     

    Now, as to the other issue, this might be because you're using JavaScript and JavaScript can't assign values to indexed properties directly.  So, you'll need to re-do that line like so.

     

    function addNewProjectVariable(parentName, variableName, type, arrayNames, arrayValues) {
  if (!Project.Variables.VariableExists(variableName)) {
    let localVariable = Project.Variables.AddVariable(variableName, type);
  }  // Variable is created / evaluated here already 
else {
    let localVariable = Project.Variables.VariableByName(variableName);
}
  let propArray = arrayNames;
  let propValues = arrayValues;
  
 localVariable = Project.Variables.objstudioprocess.FindEx(propArray,propValues,depth=5,true,delay = 5000)
  Log.Message("systemView :"+Project.Variables.projectTreeView.Name)
  
}

     

    Alternatively, you may need to use the $set method to assign the variable value.

tristaanogre's avatar
tristaanogre
Esteemed Contributor

I think the problem is here.

 

Project.Variables.variableName = Project.Variables.objstudioprocess.FindEx(propArray,propValues,depth=5,true,delay = 5000)

 

What is "variableName" in this context?  The code doesn't know.  You've created a variable with the NAME that is stored in variableName, but that variable isn't evaluated yet.

 

instead, replace with

 

Project.Variables.VariableByName(variableName) = Project.Variables.objstudioprocess.FindEx(propArray,propValues,depth=5,true,delay = 5000)

 You need to use "VariableByName" because you need to evaluate what the variable is by the given name.  This is where your error is coming from, not the find.

dicas's avatar
dicas
Occasional Contributor
5 years ago

Hello!

Actually,
to your question : What is "variableName" in this context?

 

function addNewProjectVariable(parentName, variableName, type, arrayNames, arrayValues) {
  if (!Project.Variables.VariableExists(variableName)) {
    Project.Variables.AddVariable(variableName, type);
  }  // Variable is created / evaluated here already 
  let propArray = arrayNames;
  let propValues = arrayValues;
  
 Project.Variables.VariableByName(variableName) = Project.Variables.objstudioprocess.FindEx(propArray,propValues,depth=5,true,delay = 5000)
  Log.Message("systemView :"+Project.Variables.projectTreeView.Name)
  
}


See in my function i have a first part that deals with VariableName creation, isn't it already evaluated then ?

if (!Project.Variables.VariableExists(variableName)) {
    Project.Variables.AddVariable(variableName, type);
  }  // Variable is created / evaluated here already



I tried your solution still : I got a new error 
ReferenceError: Invalid left-hand side in assignment 

  • tristaanogre's avatar
    tristaanogre
    Esteemed Contributor
    5 years ago

    To answer your question:

     

    Project.Variables.variableName is not defined because there isn't a variable named variableName.  There is a variable with the name that is the content of variableName.  

     

    So, let's say variableName is "myVariable".  Then you would reference it as Project.Variables.myVariable or Project.Variables.VariableByName("myVariable").

     

    Now, as to the other issue, this might be because you're using JavaScript and JavaScript can't assign values to indexed properties directly.  So, you'll need to re-do that line like so.

     

    function addNewProjectVariable(parentName, variableName, type, arrayNames, arrayValues) {
  if (!Project.Variables.VariableExists(variableName)) {
    let localVariable = Project.Variables.AddVariable(variableName, type);
  }  // Variable is created / evaluated here already 
else {
    let localVariable = Project.Variables.VariableByName(variableName);
}
  let propArray = arrayNames;
  let propValues = arrayValues;
  
 localVariable = Project.Variables.objstudioprocess.FindEx(propArray,propValues,depth=5,true,delay = 5000)
  Log.Message("systemView :"+Project.Variables.projectTreeView.Name)
  
}

     

    Alternatively, you may need to use the $set method to assign the variable value.

    • AlexKaras's avatar
      AlexKaras
      Champion Level 3
      5 years ago

      dicas 

      And one more question:

       

      Is it *really* needed to store a reference to the objstudioprocess process in the project variable?

      Why not just use Aliases.objstudioprocess instead?

       

      • sonya_m's avatar
        sonya_m
        SmartBear Alumni (Retired)
        5 years ago

        Thank you everyone!

         

        dicas was the advice helpful? Please let us know!