jquery autocomplete

 $("#company").autocomplete({
			  source: function( request, response ) {
				    $.ajax({
				        url: "findByCompanyName",
				        data: {"company": request.term},
				        dataType: "json",
				        success: function( data ) {
				            response( $.map( data, function( item ) {
				                return {
				                    label: item.company,
				                    value: item.company,
				                    companyid: item.companyId
				                }
				            }));
				        }
				    });
				},
	          minLength: 1,
	          select: function(event, ui) {
	              $('#eventCompany').val(ui.item.company);
	              $('#companyName').val(ui.item.company);
	              $('#companyId').val(ui.item.companyId);
	          }
	      });

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       above auto complete functionality working when i search the companies.when I select the company I need to call another AJAX call to get departments which are related to that company.Is it in onselect or onchange function?
LVL 20
chaitu chaituAsked:
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leakim971PluritechnicianCommented:
put new ajax call inside block line 19 to 22, as you can see you set company Id and Name

                select: function(event, ui) {
                    $('#eventCompany').val(ui.item.company);
                    $('#companyName').val(ui.item.company);
                    $('#companyId').val(ui.item.companyId);
                      $.ajax(parameters);
                }

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chaitu chaituAuthor Commented:
at what time we can use onchange function and  on one more doubt is if no matches found in findByCompanyName ajax call then how do we handle that scenario?

change: function(event, ui) {
               
                }
leakim971PluritechnicianCommented:
why change event ? it's not a dropdown, it's an autocomplete list
select run each time you select a company in the autocomplete list
chaitu chaituAuthor Commented:
if no matches found in findByCompanyName ajax call then how do we handle that scenario?
leakim971PluritechnicianCommented:
what do you want to happen if no match found?

you can check how many company is returning here around line 7:
success: function( data ) {
                             if(data.length==0) { // no company found
// do something
                             }
                             else {
                                    response( $.map( data, function( item ) {
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