jquery load callback function
Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/05/jquery-load-callback-function.html Healthy diet is very important both for the body and mind. If you like Aarvi Kitchen recipes, please support by sharing, subscribing and liking our YouTube channel. Hope you can help. https://www.youtube.com/channel/UC7sEwIXM_YfAMyonQCrGfWA/?sub_confirmation=1 In this video we will discuss the use of complete parameter of jquery load function. Syntax .load( url [, data ] [, complete ] ) complete parameter is a callback function that is executed when the request completes. The callback function has 3 parameters. CallbackFunction(response, status, xhr) In the following example, the anonymous function that is passed as the third parameter to the load function is executed when the AJAX request completes. Replace < with LESSTHAN symbol and > with GREATERTHAN symbol <html> <head> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { var textBoxes = $('input[type="text"]'); textBoxes.focus(function () { var helpDiv = $(this).attr('id'); $('#' + helpDiv + 'HelpDiv').load('GetHelpText.aspx', { HelpTextKey: helpDiv }, function (response, status, xhr) { var errorMessage = 'status : ' + xhr.status + '<br/>'; errorMessage += 'status text : ' + xhr.statusText + '<br/>'; errorMessage += 'response : ' + response; $('#divError').html(errorMessage); }); }); textBoxes.blur(function () { var helpDiv = $(this).attr('id') + 'HelpDiv'; $('#' + helpDiv).html(''); }); }); </script> </head> <body style="font-family:Arial"> <table> <tr> <td>First Name</td> <td><input id="firstName" type="text" /></td> <td><div id="firstNameHelpDiv"></div></td> </tr> <tr> <td>Last Name</td> <td><input id="lastName" type="text" /></td> <td><div id="lastNameHelpDiv"></div></td> </tr> <tr> <td>Email</td> <td><input id="email" type="text" /></td> <td><div id="emailHelpDiv"></div></td> </tr> <tr> <td>Income</td> <td><input id="income" type="text" /></td> <td><div id="incomeHelpDiv"></div></td> </tr> </table> <br /> <div id="divError"></div> </body> </html> If you want the code in the callback function to execute only if these is an error, you can do so using status parameter as shown below. $('#' + helpDiv + 'HelpDiv').load('GetHelpText.aspx', { HelpTextKey: helpDiv }, function (response, status, xhr) { if (status == 'error') { var errorMessage = 'status : ' + xhr.status + '<br/>'; errorMessage += 'status text : ' + xhr.statusText + '<br/>'; errorMessage += 'response : ' + response; $('#divError').html(errorMessage); } });
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