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Re: [ydn-javascript] AutoComplete Questions

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  • Alan Pinstein
    Two ideas: 1) From looking at the code; it seems that you should a different HTTP error code if you want dataErrorEvent to fire. 2) There are other events that
    Message 1 of 2 , Dec 30, 2007
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      Two ideas:

      1) From looking at the code; it seems that you should a different HTTP error code if you want dataErrorEvent to fire.
      2) There are other events that you can deal with as well; dataReturnEvent looks good.

      I think if I were you I'd return an empty set, subscribe to dataErrorEvent, and display your message in case this occurs.

      Your dataReturnEvent handler should essentially hide the "NO results" element if count > 0, or show it if count == 0.

      Alan

      On Dec 29, 2007, at 9:09 AM, dvidluca wrote:

      Hi,

      I've got an autocomplete object that queries a mySQL database via XHR 
      and PHP for words beginning with the character typed into the 
      autocomplete.

      I works fine, if I type 'a' in the autocomplete, I get a list of 
      words beginning with 'a'.

      I want to extend it now and have set my PHP file to echo 'No matching 
      data' if the parameter is not matched. Is there any way I can test 
      for this string before showing the results div? I know I can get to 
      the results via formatResult, but I don't want to have to reformat 
      each result on a successful response.

      Also, I can't seem to get the dataErrorEvent working (although I can 
      subscribe to dataReturnEvent easily enough), I've used the following 
      code:

      var errorHandler = function() {
      alert("Error" );
      }
      myACObj.dataErrorEv ent.subscribe( ErrorHandler) ;

      I have also set a timeout on the datasource

      the alert never appears though (if I type a non-alphabetic character 
      into the autocomplete for example), but I would have assumed that the 
      timeout would stop the request, then (as no data had been received) 
      the dataErrorEvent would fire (and then my alert display). Is the 
      dataErrorEvent for, like, an actual error code from the server, or 
      can no data be classed as a data error?


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