Error with AJAX in JavaScript for Cross Domain ASMX Web Service JSONP Call
Question
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User-1060182652 posted
I have a web service that I believe meets the required criteria for cross-domain JavaScript calls for accessing data from CRM that lives outside of CRM, and I am running into some errors creating the JavaScript AJAX Code to access that web service.
The web service runs at http://aloyegeneraltest1/ReturnJSON.asmx
and I can cause the results shown in the screen shot below to appear by accessing the web service at http://aloyegeneraltest1/ReturnJSON.asmx/GetPriceJSON
My problem is that I am unable to figure out how to properly write the JavaScript code that will actually get the serialized items shown in the web service above.
When I run the page below, and click the "test" button, I get an error stating 0x800a1391 - JavaScript runtime error: 'GetJSONP' is undefined.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ClientSideGeneralTest._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "www.w3.org/.../xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <script language="JavaScript" type="text/JavaScript" src="Scripts/jquery-3.1.1.min.js"> function GetJSONP() { debugger; $.ajax({ url: "aloyegeneraltest1/.../GetPriceJSON", type: "POST", contentType: "application/json; charset=utf-8", data: '{"name":' + JSON.stringify(GetData()) + '}' }).done(function(result) { alert(result.d); }).fail(function(result) { alert(result.d); }); } } </script> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <input id="Button1" type="button" value="Test" onclick="GetJSONP()" /><br /> </div> </form> </body> </html>If I remove the JQuery reference entirely, that eliminates the undefined function error above, but doing so causes a new unhandled exception error as shown - 0x800a1391 - JavaScript runtime error: '$' is undefined
The modified code that produces the new error looks like this:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ClientSideGeneralTest._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "www.w3.org/.../xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <script language="JavaScript" type="text/JavaScript"> function GetJSONP() { debugger; $.ajax({ url: "aloyegeneraltest1/.../GetPriceJSON", type: "POST", contentType: "application/json; charset=utf-8", data: '{"name":' + JSON.stringify(GetData()) + '}' }).done(function(result) { alert(result.d); }).fail(function(result) { alert(result.d); }); } </script> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <input id="Button1" type="button" value="Test" onclick="GetJSONP()" /><br /> </div> </form> </body> </html>It appears to be having some kind of issue with the $ at the start of the Ajax code.
I am completely new to AJAX and am fairly new to development in general so any help or advice that anyone may be able provide regarding how I might resolve this syntax/structure issue would be greatly appreciated.
