problem with var 'undefined' after defineding it RSS

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  yani

  Member

  104 Points

  126 Posts

  problem with var 'undefined' after defineding it

  Dec 09, 2012 03:51 PM|LINK

  hello

  on Jquery last vartion

  on keyUp event i check if a global var is === 'undefined'

  and if so i fill it from XML data...

  than i try agan --->> but still is umdefine!

  ONLY after the second keyUp event the Var is define!

  $(document).ready(function () {
              var __XML;
  
              $('.target').keyup(function () {
                  if (typeof __XML === 'undefined')
                      GatXmlData();
  
                  pupolateWithData(__XML);                // still undifine
              });
  
              function GatXmlData() {
                  $.ajax({
                      type: "GET",
                      url: "DAL/XML_xxoo.xml",
                      dataType: "xml",
                      success: function (xml) { __XML = xml; }
                  });
              }

  
  
  

  • Edited by yani on Dec 09, 2012 05:44 PM
  • Edited by yani on Dec 09, 2012 05:44 PM
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  bruce (sqlwo...

  All-Star

  36644 Points

  5432 Posts

  Re: problem with var 'undefined' after defineding it

  Dec 09, 2012 05:42 PM|LINK

  the a in ajax means async, you are calling populate before it returns. look at the deferred object. or just call  it from the success lambda.

  bruce (sqlwork.com)
  • Edited by bruce (sqlwork.com) on Dec 09, 2012 05:44 PM
  • Edited by bruce (sqlwork.com) on Dec 09, 2012 05:44 PM
  • Marked as answer by Yanping Wang - MSFT on Dec 21, 2012 06:43 AM
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  asteranup

  All-Star

  30184 Points

  4906 Posts

  Re: problem with var 'undefined' after defineding it

  Dec 10, 2012 03:59 AM|LINK

  Hi,

  Either set async:false in the ajax call. Or change the code loke below-

  $(document).ready(function () {
              var __XML;
  
              $('.target').keyup(function () {
                  if (typeof __XML === 'undefined')
                      GatXmlData();
  
                  
              });
  
              function GatXmlData() {
                  $.ajax({
                      type: "GET",
                      url: "DAL/XML_xxoo.xml",
                      dataType: "xml",
                      success: function (xml) {
                         __XML = xml;
                         pupolateWithData(__XML);
                      }
                  });
              }

  Thanks & Regards
  Anup Das Gupta
  Mark as Answer if you feel so. Visit My Blog
  • Marked as answer by Yanping Wang - MSFT on Dec 21, 2012 06:43 AM
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  Yanping Wang...

  Star

  14859 Points

  1525 Posts

  Microsoft

  Re: problem with var 'undefined' after defineding it

  Dec 21, 2012 06:45 AM|LINK

  Hi yani,

  Since we haven’t heard from you for some days, I am closing you post by marking bruce and Anup’s reply as answer. If their reply did not resolve your problem, please feel free to unmark the answer. If you have further issue but different than the original one in this thread, please open a new question. Thanks for your cooperation.

  Thanks,

  Yanping Wang

  Please mark the replies as answers if they help or unmark if not.
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