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POjQuery $.ajax not calling ASP.NET web service method in IE
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copied!<p>I have been trying like the dickens to have a web service called from jQuery using the $.ajax method through IE, but it just does not seem to work. I've looked through Stackoverflow and a veritable amount of Google searches, but none of the solutions people have come up with have worked for me. </p> <p>The following is how things are set up...</p> <p>The jQuery call:</p> <pre><code>function PerformPainPointDataSubmit() { var coordString = ""; var mapAreas = $('map[id$=body_profile_map]').find('area'); mapAreas.each(function() { if ($(this).attr('shape').toLowerCase() == "circle") { coordString += $(this).attr('coords') + ';'; } }); $.ajax({ type: "POST", url: "../../LandingPageWebService.asmx/PerformPainPointDataSubmit", data: JSON.stringify({ "coords": coordString }), //data: "{'coords':'" + coordString + "'}", // Doesn't work //data: '{ "coords": "' + coordString + '" }' // Also doesn't work contentType: "application/json; charset=utf-8", datatype: "json", async: true, cache: false, success: function(data) { alert("success: " + status); }, failure: function(msg) { alert("fail: " + msg); }, error: function(XMLHttpRequest, textStatus, errorThrown) { debugger; } }); //$.delay(1000); <-- Explained a little further down //return false; } </code></pre> <p>Please note that the <code>success</code>, <code>failure</code> and <code>error</code> functions never get called.</p> <p>The following is the definition for <code>LandingPageWebService</code> class (some database code has been removed):</p> <pre><code>[WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.Web.Script.Services.ScriptService] public class LandingPageWebService : System.Web.Services.WebService { [WebMethod(EnableSession=true)] public bool PerformPainPointDataSubmit(string coords) { string hotSpotCoords = string.Empty; string[] coordsSplit = coords.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries); // parse the string and make sure we only have // values and nothing else. foreach (string spl in coordsSplit) { string[] indCoords = spl.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries); if (indCoords.Length != 3) { return false; } int x = 0; int y = 0; try { x = int.Parse(indCoords[0]); y = int.Parse(indCoords[1]); } catch (FormatException formEx) { return false; } hotSpotCoords += x + "," + y + ";"; } // snipped out Database saving code return true; } </code></pre> <p>The jQuery function is called fron an OnClientClick within a Button:</p> <pre><code><asp:Button ID="btnSave" Text="Save" runat="server" OnClientClick="PerformPainPointDataSubmit();CloseWin()" CssClass="STD_Button" ValidationGroup="vgEditClinicalSummary" CausesValidation="true" /> </code></pre> <p>The page itself is in a modal dialog that is closed when the 'Save' button is clicked. The web service is called in Chrome and Firefox without any problems, no matter how many times I call it. However with IE it becomes a crap shoot. </p> <p>Typically, but not all the time, it will be called the first time the page is loaded. I figured there was a caching issue, but <code>cache:false</code> was already set. I tried adding a <code>DateTime</code> to the url, but I kept getting errors on that (I honestly don't think I formed it properly, suggestions?). I tried different <code>datatype</code> strings, and of course <code>JSON.stringify()</code> works, but like I said, it will only work once.</p> <p>I noticed while I had a break in the jQuery function that if I waited a second or two, IE would actually make a call to the web service and execute successfully. It would do that every time. I figured the modal window was closing faster than the server could process the request and not make the web service call. I added the <code>$.delay(1000)</code> in the jQuery code hoping it would work, but unfortunately it didn't.</p> <p>Now I am at my wits end and have absolutely no idea how to proceed. Everything seems to make logical sense, but obviously something is amiss. </p> <p>I would be greatly appreciative of help anyone can provide.</p>

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