Ajax Error Handling
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring
Ajax Error Handling Javascript
developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask ajax error handling best practices Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join ajax error handling function them; it only takes a minute: Sign up jQuery ajax error function up vote 41 down vote favorite 21 I have an ajax call passing data to a page which then returns a value. I have retrieved the successful
Php Ajax Error Handling
call from the page but i have coded it so that it raises an error in the asp. How do i retrieve that error from the jquery? For example: cache: false, url: "addInterview_Code.asp", type: "POST", datatype: "text", data: strData, success: function (html) { alert('successful : ' + html); $("#result").html("Successful"); }, error: function (error) { **alert('error; ' + eval(error));** } It's the error bit that I don't understand. In the function what parameter do I need to put, so that
Javascript Error Handling
I can then use the error message that I raised in the asp page. jquery ajax share|improve this question edited Mar 16 at 12:28 dirn 7,17631530 asked Jul 22 '11 at 16:13 Darryl Wilson 306135 add a comment| 7 Answers 7 active oldest votes up vote 70 down vote Try this: error: function(jqXHR, textStatus, errorThrown) { console.log(textStatus, errorThrown); } If You want to inform Your frontend about an validation error, try to return json: dataType: 'json', success: function(data, textStatus, jqXHR) { console.log(data.error); } Your asp script schould return: {"error": true} share|improve this answer edited Feb 14 '13 at 10:05 answered Jul 22 '11 at 16:21 czerasz 5,19852344 add a comment| up vote 66 down vote The required parameters in an Ajax error function are jqXHR, exception and you can use it like below: $.ajax({ url: 'some_unknown_page.html', success: function (response) { $('#post').html(response.responseText); }, error: function (jqXHR, exception) { var msg = ''; if (jqXHR.status === 0) { msg = 'Not connect.\n Verify Network.'; } else if (jqXHR.status == 404) { msg = 'Requested page not found. [404]'; } else if (jqXHR.status == 500) { msg = 'Internal Server Error [500].'; } else if (exception === 'parsererror') { msg = 'Requested JSON parse failed.'; } else if (exception === 'timeout') { msg = 'Time out error.'; } else if (exception === 'abort') { msg = 'Ajax request aborted.'; } else { msg = 'Uncaught Error.\n' +
here for a quick overview of the site Help Center Detailed answers to any questions xml error handling you might have Meta Discuss the workings and policies of this
Jquery Error Handling
site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers ajax error function example or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a http://stackoverflow.com/questions/6792878/jquery-ajax-error-function community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up jQuery AJAX Error Handling (HTTP Status Codes) up vote 20 down vote favorite 3 We have an API which uses proper HTTP status codes for errors, and responds with JSON-encoded responses and appropriate http://stackoverflow.com/questions/12734714/jquery-ajax-error-handling-http-status-codes Content-Type header. My situation is that jQuery.ajax() triggers the error callback when it encounters an HTTP error status, and not the success callback, so even when we have an intelligible JSON response, we have to resort to something like this: $.ajax({ // ... success: function(response) { if (response.success) { console.log('Success!'); console.log(response.data); } else { console.log('Failure!'); console.log(response.error); } }, error: function(xhr, status, text) { var response = $.parseJSON(xhr.responseText); console.log('Failure!'); if (response) { console.log(response.error); } else { // This would mean an invalid response from the server - maybe the site went down or whatever... } } }); Is there a better paradigm than doing identical error handling in two spots in each jQuery.ajax() call? It's not very DRY, and I'm sure I've just missed something somewhere on good error handling practices in these cases. jquery ajax error-handling share|improve this question asked Oct 4 '12 at 19:44 drrcknlsn 11.4k73879 I'm assuming by HTTP Status code, you mean yo
Team Conduct Brand Guide Donate jQuery API Documentation Download API Documentation Blog Plugins Browser Support search http://api.jquery.com/ajaxerror/ Search jQuery API Documentation .ajaxError() Categories: Ajax > Global Ajax Event Handlers .ajaxError( handler )Returns: jQuery Description: Register a handler to be called when https://datatables.net/forums/discussion/7325/processing-notice-and-ajax-error-handling Ajax requests complete with an error. This is an Ajax Event. version added: 1.0.ajaxError( handler ) handler Type: Function( Event event, jqXHR jqXHR, PlainObject error handling ajaxSettings, String thrownError ) The function to be invoked. Whenever an Ajax request completes with an error, jQuery triggers the ajaxError event. Any and all handlers that have been registered with the .ajaxError() method are executed at this time. Note: This handler is not called for cross-domain script and ajax error handling cross-domain JSONP requests. To observe this method in action, set up a basic Ajax load request. 1 2 3 <button class="trigger">Triggerbutton><div class="result">div><div class="log">div> Attach the event handler to the document: 1 2 3 $( document ).ajaxError(function() { $( ".log" ).text( "Triggered ajaxError handler." );}); Now, make an Ajax request using any jQuery method: 1 2 3 $( "button.trigger" ).on( "click", function() { $( "div.result" ).load( "ajax/missing.html" );}); When the user clicks the button and the Ajax request fails, because the requested file is missing, the log message is displayed. All ajaxError handlers are invoked, regardless of what Ajax request was completed. To differentiate between the requests, use the parameters passed to the handler. Each time an ajaxError handle
DaveBurns Posts: 17Questions: 0Answers: 0 November 2011 edited November 2011 in DataTables 1.8 If the Ajax call to get data from the server fails and bProcessing is set to true, the box with "Processing..." remains. Is this expected behavior? Is there an official way to dismiss it? (Obviously I can find the element and set it to hidden but that doesn't feel "clean"). Replies allan Posts: 35,462Questions: 1Answers: 3,695 Site admin November 2011 Yes - there has been an error that shouldn't occur, so DataTables remains in that state (mainly to indicate to the developer that there has been an error that needs to be fixed with the JSON source). The "fix" in DataTables would be to modify the $ajax call's error handler to hide the processing element, but I'm reluctant to do that since it will make it less likely the developer will see the problem. Allan fbas Posts: 1,089Questions: 2Answers: 0 November 2011 is there a preferred way to hide the processing message? there was an occasion I needed to clear it and used jQuery .hide() on the div container. allan Posts: 35,462Questions: 1Answers: 3,695 Site admin November 2011 The internal function _fnProcessingDisplay (exposed in oApi) is the preferred way of doing it - although currently all it really does is set display:none on the element - rather like what hide() does. Allan DaveBurns Posts: 17Questions: 0Answers: 0 November 2011 Allan - Just so future readers don't misunderstand, this can come up with more than just malformed JSON. If the server returns an HTTP result code such as a 404 or 500, this occurs too. I think (?) the issue is that DataTables sets no default error handler for the Ajax call. In the end, I added a fnServerData handler and in the $.ajax call, I added: [code]"error": handleAjaxError[/code] In the function handleAjaxError, among other cleanup, I called [code]table.fnProcessingIndicator( false );[/code] db trishdev Posts: 11Questions: 0Answers: 0 December 2011 DaveBurns -- can you show the entire fnServerData handler and handleAjaxError code? I have be