• Adobe After Effects Expressions

  getting “ReferenceError: Object is invalid” while resetting a listBox

  Posted by Dror Lazar on June 19, 2016 at 5:24 am

  Hi
  i’m trying to create a refresh button for a list (that shows the render Q better for my needs). it works fine, i’m removing all the list items and then re-entering them. for some reason when i click the same refresh button for the 6th/7th time i’m getting:

  ReferenceError: Object is invalid

  (it seems to be related to line 66 in the code – ” curItem = folderPathListbox.add (‘item’, renderItem.toString()); // Column 1″)
  any help?
  i’m lost here…
  attached are the JSX and a sample project i use to test it:
  JSX – https://adobe.ly/1tC5jcj
  AEP – https://adobe.ly/1UfMfXF

  thanks
  D

  try{

  function createUserInterface (thisObj,userInterfaceString,scriptName){
  var pal = (thisObj instanceof Panel) ? thisObj : new Window("palette", scriptName,
  undefined,{resizeable: true});
  if (pal == null) return pal;

  var UI=pal.add(userInterfaceString);

  pal.layout.layout(true);
  pal.layout.resize();
  pal.onResizing = pal.onResize = function () {
  this.layout.resize();
  }
  if ((pal != null) && (pal instanceof Window)) {
  pal.show();
  }
  return UI;
  };

  {var res ="group {orientation:'column',\
  alignment:['fill','fill'],\
  alignChildren:['fill','top'],\
  headerText:StaticText {text:'Render Q lister', alignment:'center'},\
  buttonGroup: Group{\
  alignment:['center','top']\
  refButton: Button{text:'Refresh'}\
  dupButton: Button{text:'Duplicate Selected'}\
  selButton: Button{text:'Select in renderQueue'}\
  expButton: Button{text:'Export to File'}\
  }\
  folderPathListbox:ListBox{\
  alignment:['fill','fill'],\
  properties:{\
  multiline:true,\
  multiselect:true,\
  numberOfColumns:5,\
  showHeaders:true,\
  columnTitles: ['Render #','Date','Time', 'Comp Name', 'Render Path']\
  }\
  },\
  }";

  }
  function listRQ (rqList){
  try{
  var folderPathListbox = rqList;
  var proj = app.project;
  var totalRenderQ = proj.renderQueue.numItems;
  for(var i= 1; i<=totalRenderQ; i++){
  var totalOM= proj.renderQueue.item(i).numOutputModules;
  for (var om= 1; om<=totalOM; om++){
  var dateList, timeList, curItem, renderItem;
  renderItem = "Render #" + i + " - " + om ;
  if (proj.renderQueue.item(i).startTime != null){
  var min = proj.renderQueue.item(i).startTime.getMinutes() <10 ? "0"+ proj.renderQueue.item(i).startTime.getMinutes() : proj.renderQueue.item(i).startTime.getMinutes();
  var year = proj.renderQueue.item(i).startTime.getFullYear().toString().substr (-2,2);
  timeList = (proj.renderQueue.item(i).startTime.getHours()-1)+":" + min;
  dateList =proj.renderQueue.item(i).startTime.getDate()+"/"+(proj.renderQueue.item(i).startTime.getMonth()+1)+"/"+year ;
  }else{
  dateList = "not rendered";
  timeList = " ";
  }
  curItem = folderPathListbox.add ('item', renderItem.toString()); // Column 1
  curItem.subItems[0].text = dateList.toString(); // Column 2
  curItem.subItems[1].text = timeList.toString(); // Column 3
  curItem.subItems[2].text = proj.renderQueue.item(i).comp.name; // Column 4
  curItem.subItems[3].text = proj.renderQueue.item(i).outputModule(om).file.toString().replace(new RegExp(",","g"), "\r").replace(new RegExp("%20","g"), " ").replace(new RegExp("%5B","g"), "[").replace(new RegExp("%5D","g"), "]"); // Column 5
  }
  }
  }catch(err){alert(err)}
  return folderPathListbox;
  }

  var UI = createUserInterface(this,res,"Better RQ");
  var myList = UI.folderPathListbox;
  var lsRq = listRQ(myList);

  { // buttons action
  UI.buttonGroup.refButton.onClick = function () {

  lsRq.removeAll();
  lsRq = listRQ(myList);

  }
  UI.buttonGroup.dupButton.onClick = function () {
  alert ("Dup");
  }
  UI.buttonGroup.selButton.onClick = function () {
  alert ("Sel");
  }
  UI.buttonGroup.expButton.onClick = function () {
  alert ("Exp");
  }
  }

  }
catch(err){
alert ("Error at line # " + err.line.toString() + "\r" + err.toString());
}

  Dror Lazar replied 10 years, 2 months ago 1 Member · 0 Replies
• 0 Replies

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