jQuery syntax for selecting XML nodes

Question

We are currently in the preparating for upgrading CRM 2011 with UR 12, and there are a few pieces of javascript that might break after the upgrade.

The XML related functions are some of the ones highlighted as potential code. So I would like to replace these functions with JQuery equivalent, but do not have much idea about jQuery

Assuming that 'result' is a XML response from xmlhttprequest, how do we convert the following code to use jquery

result.selectNodes("//EntityMetadata/DisplayName/LocLabels/LocLabel/Label");

will something like

$(result).find(("//EntityMetadata/DisplayName/LocLabels/LocLabel/Label");

Where is this XML coming from? OData? – James Wood Feb 28 '13 at 09:19 — James Wood, Feb 28 '13 at 09:19

score 0 · Answer 1 · edited May 23 '17 at 10:25

0

It appears that jQuery once had rudimentary XPath support. However, this does not seem to be the case anymore. You may find Cross-browser XPath implementation in JavaScript interesting.

Also, there's no requirement that the result of XMLHttpRequest be XML. It could be text, JSON, binary data, etc.

edited May 23 '17 at 10:25

Community

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1

answered Feb 28 '13 at 06:50

jensgram

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score 0 · Accepted Answer · answered Feb 28 '13 at 13:03

Despite this takes not your question regarding jQuery into account, it shows a way described in the CRM SDK.

Take a look at the JavaScript Best Practices article. This article links to a sample where a compatible implementation of selectNode is shown

function _selectNodes(node, XPathExpression) {
  if (typeof (node.selectNodes) != "undefined") {
   return node.selectNodes(XPathExpression);
  }
  else {
   var output = [];
   var XPathResults = node.evaluate(XPathExpression, node, _NSResolver, XPathResult.ANY_TYPE, null);
   var result = XPathResults.iterateNext();
   while (result) {
    output.push(result);
    result = XPathResults.iterateNext();
   }
   return output;
  }
 };

thank you for the reference above. Looks like a good solution, I'll give it a try. — Rajesh, Mar 05 '13 at 09:18

jQuery syntax for selecting XML nodes

2 Answers2