Doubt in qlikview extension

Anonymous — Mon, 26 Jan 2026 16:26:21 GMT

Hi guys,

i have a JS script file in Qlikview , i have written a code:

var td = _this.Data;
  for(var rowIx = 0; rowIx < td.Rows.length; rowIx++) {
  //set the current row to a variable
     var row = td.Rows[rowIx];
     var start=row[0].text;
      var end= row[1].text
;document.getElementById(start).addEventListener(some function);
document.getElementById(start).addEventListener(some function);
}

the problem is the getElementByID is not retrieving any value , what i need is the value or ID need to be passed .

Kindly please suggest me any alternative for this

Thank,

Vivek

Re: Doubt in qlikview extension

Wed, 13 Jul 2016 13:29:22 GMT

The document.getElementById function retrieves a DOM element with a given id. The content of the Data.Rows is not DOM elements but plain javascript object without representation in the document.

You have first to create a DOM element containing your extension data, add it to your extension element (which is this.Element in your function), and then add an event listener to it.

For example:

var td = _this.Data;  
for(var rowIx = 0; rowIx < td.Rows.length; rowIx++) {
  var row = td.Rows[rowIx];  
  var start = row[0].text;  
  var end = row[1].text;
  // create a <div> element representing the data row
  var start_element = document.createElement('div');
  // set the content of the <div> to be the text of the first column of the row
  start_element.innerHTML = start;
  // add the div to the extension element
  _this.Element.appendChild(start_element);
  // listen to the 'click' event on the element
  start_element.addEventListener('click', function() { alert('I was clicked!');  });
}

Note that you don't have to call document.getElementById since you already have a reference to the element (returned by createElement).

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Doubt in qlikview extension

Re: Doubt in qlikview extension