Call An Ajax - Enabled WCF Service With JQuery?
Jan 28, 2011
I have this Aja.svc in my root folder
[ServiceContract(Namespace = "")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class Aja
{
[WebGet]
[OperationContract]
public string Hi()
{
return "hi world!";
}
}
and I'm trying to do this: $.get('Aja.svc?method=Hi', function(d) { alert(d.d); }); In firebug I see that the result is HTTP Error 404.17 - Not Found The requested content appears to be script and will not be served by the static file handler. I use .net 3.5, jquery 1.4.4
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Similar Messages:
Jan 13, 2011
I created a number of standard WCF Services (Service Contract and Host (svc) are in separate assemblies). I fired up a Web Site in IIS to host the Services (i.e., address is [URL]). Then in my Web Site project I added the reference. I am able to call the services normally. I am needed to call some of the services client side. Not sure if I should be looking at articles calling WCF services through AJAX, JQuery, or JSON enabled WCF Services. Some of the changes I made was adding the following to the Operation Contract:
[OperationContract]
[WebInvoke(Method = "POST", UriTemplate = "SetFoo")]
void SetFoo(string Id);
Then this above the implementation of the interface:
[AspNetCompatibilityRequirements(RequirementsMode =
AspNetCompatibilityRequirementsMode.Allowed)]
Then in the service webconfig I have this (parens are angle brackets):
<serviceHostingEnvironment aspNetCompatibilityEnabled="true">
<baseAddressPrefixFilters>
<add prefix=[URL]>>
</baseAddressPrefixFilters>
</serviceHostingEnvironment>
<serviceHostingEnvironment multipleSiteBindingsEnabled="false" />
Then in the client side I attempted this:
<asp:ScriptManagerProxy ID="ScriptManagerProxy1" runat="server">
<compositeScript>
<Scripts>
<asp:ScriptReference
Path=[URL]/>
</Scripts>
</CompositeScript>
</asp:ScriptManagerProxy>
I am attempting to call the service like this in javascript: wcfservices.SetFoo(string Id); Nothing is working. If it is idea or a better solution to call JSON enable, JQuery, etc.... I am willing to make any changes.
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Feb 22, 2011
I have this method in asp.net ajax enabled mvc service
[OperationContract]
public TestRun GetTestSuite(string testSuitName) {
TestRun testRun =
AdapterFactory.CreateTestRunAdapter().GetByTestSuiteName("testSuit");
return testRun;
}
Where TestRun is Created using entities framework against TestRun table. I am using following ajax method
function getTestSuite() {
$.ajax({
type: "POST",
url: "Services/TestRunService.svc/GetTestSuite",
data: '{"testSuitName" : "' + testSuiteName + '"}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
},
//If the call fails
error: function (xhr, textStatus, errorThrown) {
alert(errorThrown);
}
})
}
I get undefined error. If I return string from service it works. Do I need to change dataType: "json" to something else?
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Nov 6, 2010
Iīm using jQuery to make the ajax calls to web services. Iīm not using json, I want the information in XML. If I donīt pass parameters and I make the WS parameter less it works but if I want to pass a value as parameter (I tried int and string) it doesnīt work. Here is my code:
jQuery: [Code]....
The web service
[Code]....
The error that I get from firebug is an exception System.InvalidOperationException and it says that the parameter region_id is missing.It canīt be very difficult because it works without parameters but all the information I find in internet
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Apr 4, 2011
When I was reading the blog Using jQuery to Consume ASP.NET JSON Web Services
I have seen this argument:
"By using jQuery to call the web service directly, we've eliminated over 100 KB of JavaScript and three extra HTTP requests. "
Why does the ASP.NET AJAX call to a .NET Web-Service needs 3 extra HTTP requests? What are those requests? (I wonder how jQuery manages the call with lesser HTTP requests in this case).
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Feb 19, 2010
I know normally you call ConfirmButton from a control that does postbacks, but afew of my users don't have javascript enabled which is a showstopper.
So I'm trying to use a standard asp:hyperlink with a URL to the next page, and if the user has javascript it will call the ConfirmButton on the onclick event (and if returns true will follow the URL in the hyperlink).
If they dont have javascript, it will just follow the hyperlink without a confirmation.
This is similar to have a return confirm ("sure?") in the onclick event of a hyperlink, to fire a traditional js confirm
So far I have only got this:
<asp:ScriptManager
ID="man"
runat="server"
/>
[Code]....
how I can manually call the ConfirmButton with an onclick even in the hyperlink, and return true or false?
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Jan 3, 2010
So far, I've seen (and I'm using the following) scripts to show/hide a div or other controls depending on another control in ASP.NET
$('[id$=myRadio_0]').click(function() { $('[id$=myDiv]').show(); });
$('[id$=myRadio_1]').click(function() { $('[id$=myDiv]').hide(); });
and of course, my div in html like
<div id="myDiv" runat="server" visible="false">
and that works fine when the user selects either option of the radiobuttonlist. However, when I assign that radiobuttonlist a value of 1 or yes on my Page_Load on code behind, that isn't (and probably can't be) caught by jQuery, and my div remains invisible even though the control has a value of Yes/1. So, do I need to set the visibility of that div from code behind, or is there a way in jQuery to force a scan of these dependencies after i've set the values for the main controls in code behind?
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Apr 1, 2011
Scenario : I am going to access external web service [ExternalWS] using AJAX. So obviously, need to create local proxy service [LocalProxyWS] first, which in turn will access the external web service. Now, the external service webmethod [Process] basically redirects the current page on our site to their site, does some work and then return back to our site.
What I want : I want that when the user clicks the button ('Process') on our site, it should open a new window and then starts executing the request on the new window, so that I can have the page on my website to be displayed permanently (which will poll a request every 15 seconds to the external service (via local proxy) for the status).
Local Proxy service which calls external service is as follows..
[ServiceContract(Namespace = "LocalProxy")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class LocalProxyToExternalService
{
[OperationContract]
public void InitiateTransaction(string amount)
Basically, I am opening a new window from the button click and then want to process the new request in that new window, so that I can show the status to the user from the current page on my website So far, it opens the new window, but doesn't transfer the request on to that, but I get an error message in firebug as follows...
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Feb 12, 2010
[URL] I created an AJAX-enabled WCF service to call from a web form. the thing is that after creating it, I'm able to populate my dropdown from the items returned by the service.
but 2 hours later, I get this FireFox error message when loading the page :
"Error: Sys.ArgumentException: Value must not be null for Controls and Behaviors.
Parameter name: element
Source File: http://localhost:50403/ThunderWeb2 /ScriptResource.axd?d=Htwz5SPOGy46DsuOfFL3pQa8Lr5_3hMVD_cps_d3FYg4iWXeG_0-3bdA95LxuQtbXGUXoHUpV1SV8q4FusAyWjJpsaLk2b6TFO_NfpB_3ro1&t=ffffffffbb99ee49
Line: 2710"
and also this :
Error: ThunderServ is not defined
Source File: http://localhost:50403/ThunderWeb2/Thunder/new_recording.aspx
Line: 105
I delete the service and recreate it with the same code and then it runs fine. but after a while, (1 hour or so), the service isn't defined anymore, I get the error.
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Dec 12, 2010
I have created an WCF data service in a new asp.net web application and i want to call this web service from another web application using jquery, but it always returns null.
My jquery call looks like this:
[code]....
Note that [URL] works in the browser but since the jquery call is from localhost:3410 i assume its a problem with cross domain.
I have been reading that i should use jsonp for this, but i have a hard time figuring it out.
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Sep 14, 2010
I'm trying to call a web service and the passed string may have punctuation, depending on what the user types in.I currently have an HTML textbox and a jQuery call to the .NET web service. I definitely think the string with punctuation fails because jQuery will send the string wrong, so I tried a few different javascript encoding functions I could find. I was never able to encode it successfully and decode it in .NET, saving the string with punctuation.
Basically I have a textbox that a user can update their status in. If the user wants to use punctuation, I'd like them to be able to. How can I accomplish this with jQuery and .NET?
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Oct 20, 2010
I am trying to use the below code to call a wcf service method for Autocomplete functionality in a TextBox. I have written the following query:
$(document).ready(function () {
$("#<%= txtCompany.ClientID %>").autocomplete [URL], {
dataType: 'json',
parse: function (data) {
var items = data.d;
var parsed = [];
for (var i = 0; i < items.length; i++)
parsed[i] = {
data: [items[i]],
value: items[i],
result: [items[i]]
};
return parsed;
}
});
});
The same query works if I pass a Java Script array variable instead of the wcf service method. The wcf service method contract is:
[OperationContract]
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json)]
string[] GetTestCompanyList(string prefixText, int count);
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Dec 6, 2010
I have Master Details JQGrid.My details JQGrid have Edit,Add,Del options. my problem is when I click on submit button to add data or edit data I faced with this error: "500 Internal Server Error" and it's response is
[Code]....
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May 26, 2010
I'm fairly new to ASP.Net MVC 2 and understand the MVC pattern in itself. But my question is what's the best way to populate dropdownlists in the UI sticking to the MVC pattern. Should I be going through the controller? Every article I've seen to do this shows how to do it using javascript and jquery. I have a test application that I'm re-writing in MVC2 I have my dropdowns working with jquery basically calling a WCF Data Service that returns JSON which populates the dropdowns. Seems to me though that this is bypassing the controller and going straight to the model therefore strictly violating the MVC pattern. Or am I missing something obvious here. You thoughts or best practices would be greatly welcome here.
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Dec 27, 2010
I have a web service with the following contract:
POST /Service/service.asmx HTTP/1.1
Host: xxx.xxx.xxx
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "xxx.xxx.xxx/Service/Method"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header>
<Request xmlns="xxx.xxx.xxx/Service/">
<transactiontype>string</transactiontype>
<username>string</username>
<password>string</password>
</Request>
</soap:Header>
<soap:Body>
<Method xmlns="xxx.xxx.xxx/Service/">
<xml>xml</xml>
</Method>
</soap:Body>
</soap:Envelope>
And I am trying to call the service using jquery. This is my code:
$.ajax({
url: serverUrl + 'Method',
type: "POST",
dataType: "xml",
data: { xml: "xml" },
beforeSend: function (req) {
req.setRequestHeader('Header', '<Request xmlns="xxx.xxx.xxx/Service/">'
+'<transactiontype>4</transactiontype>'
+'<agencyName>name</agencyName>'
+'<username>user</username>'
+'<password>pass</password>'
+'</Request>');
},
success: function (data) {
alert(data.text);
},
error: function (request, status, errorThrown) {
alert(status);
}
});
However, the header content is not passed to the web service? How would I go about passing the header credentials to my web service call?
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Jan 3, 2011
I have a simple web service that isn't working with a standard jQuery call. The code is below. The jQuery will execute and succeed, but on debugging, the service argument is always null. I've had it separated as 4 string params in a json string and that didn't work either. I must be missing something on the config side, but I can tell what it is.
[Code]....
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Mar 3, 2011
I want to call .asmx service from jquery
.asmx service will return multiple data from database.
I need to get those data to jquery on client side
and then i need to put each data into their respective textfield on the client side
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Dec 21, 2010
I am developing web application and in application i need to make call of jQuery using .ajax(); method with datatype is set jsonp. Now all works well with limited data but problem start to occur when data size is increasing......
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Feb 17, 2011
I have this code being called
[Code]....
which returns <div>here</div><script language=javascript>alert('');</script> The content gets loaded property, but no alert. How would I get a javascript routine to work from an ajax call along with posting the HTML code?
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Apr 26, 2010
I'm going on my 3rd day trying to get my Ajax AutoComplete textbox to call my web method. Based on my google searches, I'm not alone. I suspect the problem has something to do with the ServicePath property on the extender, although I'm not sure. My web service is at the same level, on the same server as my test web page. I'm not sure exactly what should go into the ServicePath property, although I think I've tried every possibility. Below is my web service followed by my script.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Configuration;
using System.Web;
using System.Web.Services;
using System.Data;
using System.Data.SqlClient;
using System.Data.Common;
using AjaxControlToolkit;
using System.Text;
using System.Xml;
using System.Xml.XPath;
using System.IO;
using System.Collections.Specialized;
using System.Web.Services.Protocols;
[WebService(Namespace = [URL])]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
[System.Web.Script.Services.ScriptService]
public class Service : System.Web.Services.WebService
{
public Service()
{
}
[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
public string[] AutoCompleteNames(string prefixText, int count)
{
System.Data.SqlClient.SqlConnection cxn = new System.Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings["HumanResourcesConnectionString"].ConnectionString);
cxn.Open();.....................
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Jan 25, 2011
it is possible that AutoCompleteExtender can call a service Web of another project of my solution?
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Oct 1, 2010
I am using an AJAX dropdownlist control with two dropdownlist. Instead of using a webservice to populate the data, I used the pagemethod to populate. My problem is the second droplist won't populate. I get a server error, 500 in the droplist. The first droplist populates fine.
BUT here's the real kicker. If I reverse the order of the public static function such that GetHelloList2 comes BEFORE GetHelloList1 in the code, then the GetHelloList2 works ...... it just seems like it is only firing one pagemethod event and allowign only one.
[URL]
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Aug 4, 2010
I have one ajax call web service, and want to add some http headers using javascript, can we do that use setrequestheader in ms ajax?This is my javascript
[Code]....
[Code]....
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Nov 17, 2010
I know this is a pretty common issue as i have read a lot of posts from people with similar issues. However thus far what i have uncovered doesn't seem to help resolve my issue. I have used the ModalPopupExtender regular enough but this is my first time needing the Dynamic side of things. The code I have is very basic and generic at the minute..I have the following ASPX code in place:
[Code]....
Now just to say at this stage the Modal Dialog box pops up and closes 100%. So my ProductPopulate.asmx service at the moment for testing is just using the VS2010 default Web Service with a few changes that i will explain.
[Code]....
So the changes i have made to the default VS2010 webservice is from this article http://sandblogaspnet.blogspot.com/2009/07/working-with-modal-popup-extender.html
I changed the default HelloWorld method to static and also uncommented the following line
[Code]....
So this is as far as my code has gotten at the minute. The Modal Dialog pops up 100% and what i would expect to see within the dialog box would be the text "Sampling Control" from the DynamicContextKey. Instead what i get is the "Web Service call failed: 500" error. I have stripped everything back to basics as you can see.. but for some reason i am still getting this error. I have used Web Services before from time to time without any issues and i have used the ModalPopupExtender without any issues.. but i am left scratching my head as to what i am missing on putting the two together.
Also just to note, both ASMX and ASPX files are currently in the root of the web project to rule out any path issues. Also i am using the VS Web Service to preview and debug.
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May 21, 2010
I'm not able to call a service using the scriptmanager and javascript. But when I include the service into the project i call it. but when i seperate it in another project. I'm not able to call.
<asp:ScriptManager runat="server" ID="sm" EnablePageMethods="true" EnableScriptGlobalization="true">
<Services>
<asp:ServiceReference Path="http://localhost:2794/Service1.svc" InlineScript="false" />
[code]...
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