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jQuery AJAX Call to Page Method Results in Error With No Details RSS

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Last post Jan 09, 2013 04:08 PM by algorhythm

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algorhythm

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jQuery AJAX Call to Page Method Results in Error With No Details

Jan 08, 2013 02:10 AM|LINK

$.ajax({
type: "POST",
url: "PEReport.aspx/GenerateReport",
data: "{}",
contentType: "application/json",
dataType: "json",
success: function (data) {
loadObject.innerHTML = data.d;
$("#ExportData").show();
},
error: function (xhr, status, err) {
var err = eval("(" + xhr.responseText + ")");
alert(err.Message);
}
});

<WebMethod()> _
Public Shared Function GenerateReport() As String

This always results in error, and xhr.responseText is empty. I have a master page with the ScriptManager, and EnablePageMethods is set to true.

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urenjoy

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Re: jQuery AJAX Call to Page Method Results in Error With No Details

Jan 08, 2013 09:55 AM|LINK

Put a break point and make sure GenerateReport method is called server side and returns string.

Look also at this encosia article for proper error handling.

http://techbrij.com
- Edited by urenjoy on Jan 08, 2013 09:58 AM
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algorhythm

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50 Points

53 Posts

Re: jQuery AJAX Call to Page Method Results in Error With No Details

Jan 08, 2013 07:19 PM|LINK

Thanks for the response. After setting a breakpoint in the code behind, the function is called and returns the expected string. Looked at the article, and believe I am already handling the error as demonstrated in the it, unless I missed something. I still cannot figure out why the ajax call results in error.
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asteranup

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4906 Posts

Re: jQuery AJAX Call to Page Method Results in Error With No Details

Jan 09, 2013 02:03 AM|LINK

Hi,

Put a debugger in the error function in the ajax call and check what error you are getting. If breack point does not work put a statement like debugger; in the erro method and check the detail of the parameters. You can see internal error.

Thanks & Regards
Anup Das Gupta
Mark as Answer if you feel so. Visit My Blog
- Marked as answer by algorhythm on Jan 09, 2013 04:07 PM
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priyankmtr

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Re: jQuery AJAX Call to Page Method Results in Error With No Details

Jan 09, 2013 05:59 AM|LINK

check this :

http://encosia.com/using-jquery-to-directly-call-aspnet-ajax-page-methods/

Priyank Saxena
(Mark as Answer If you find helpful)
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algorhythm

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53 Posts

Re: jQuery AJAX Call to Page Method Results in Error With No Details

Jan 09, 2013 04:08 PM|LINK

Thanks, once I put the debugger statement, I was able to see the problem. The returned string was too long.