autoComplete Source

autoComplete Source

I am using the following code to implement my autoComplete...

  1.     $('.autoDate').autocomplete({
  2.         minLength: 1,
  3.         autofocus: true,
  4.         source: function(request, response) {
  5.             $.getJSON("files_json/auto_Timesheets_Date.php", { tsEmpNum: $('#ts_EmpNum').val() }, response);
  6.           },
  7.         //source: 'files_json/auto_Timesheets_Date.php?tsEmpNum=' + $('#ts_EmpNum').val();
  8.         select:function(evt, ui)
  9.             {
  10.                 form_edit.ts_Date.value = ui.item.tsDate;
  11.                 form_edit.ts_Status.value = ui.item.tsStatus;
  12.             }
  13.     });// End of autoDate
This method gets the latest value of the ts_EmpNum (red above) and the console log indicates it is passed in the URL string as a $_GET parameter. But, the JSON code does not return any values. If I replace the source with the code in green it works fine (but of course I don't get the latest ts_EmpNum val(). Both forms append the tsEmpNum as value to the URL string.

So, do I need to do something different in the JSON code other than just treat the parameter from the getJSON source as a normal $_GET parameter? Or, is there something I am missing in the implementation.

TIA for any assistance,
jdadwilson