web app with multiple web services

Hi all, I intend on having a web app which would have many .asmx files. Some would be atlas web services and some would be regular web services. I noticed that in the web.config it changes the httphandler for .asmx files. Will this affect all my .asmx files? Is there anyway to restrict this based on folder paths etc?
TIA!Yes, you can restrict handlers to specific files or directories.
Please note that even though the .asmx requests are now handled by adifferent handler, it should not break anything. All this handler doesis return a JavaScript proxy when someone requested the service withthe "/js" pathinfo, such as myservice.asmx/js. All other requestsshould just be forwarded to the original handler.

How do I restrict handlers for certain folders? Also, it appears that my <pages> element is causing problems for my webservice folder. Specifically the autoeventwireup property set to false fails to load the web service. But I need that set to false for my regular .aspx pages. I tried putting a new <pages> element under a location tag for that folder but no luck.
TIA!

I would suggest to collect all your ASP.NET AJAX Web services (and related pages) in one folder or subfolders of it.

In the top folder you create a Web.config file where you put the applicable configuration items that apply (move them from the application Web.vonfig).

Doing this he behavior of the runtime is the old one for all application folders but the one described above.

Let me know if it works for you.

web service "is not defined"

I recently upgraded to Ajax 1.0 from ATLAS and now my web services are not working. My service references are not working, I get the "[namespace] is not defined" JS error. However, i can see that the [webservice].asmx/JSDEBUG scripts are being referenced fine. I assume the problem is with my configuration; here is the (important) contents of my Web.Config:

12<configuration>3<configSections>4<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">5<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">6<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>7<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">8<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere" />9<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />10<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />11</sectionGroup>12</sectionGroup>13</sectionGroup>14</configSections>1516<system.web>17<pages enableEventValidation="false" viewStateEncryptionMode="Never">18<controls>19<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>20</controls>21</pages>2223<httpHandlers>24<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>25<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>26<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>27<add verb="*" path="CaptchaImage.aspx" type="JSM.OpenFrame.HttpHandlers.CaptchaImageHandler"/>28<remove verb="*" path="*.asmx"/>29</httpHandlers>3031<httpModules>32<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>33</httpModules>3435<compilation debug="true">36<assemblies>37<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>38<add assembly="Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>39<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>40<add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>41</assemblies>42</compilation>4344<authentication mode="Windows"/>4546<customErrors mode="Off" defaultRedirect="GenericErrorPage.htm">47<error statusCode="403" redirect="NoAccess.htm"/>48<error statusCode="404" redirect="FileNotFound.htm"/>49</customErrors>50</system.web>5152<system.web.extensions>53<scripting>54<scriptResourceHandler enableCompression="true" enableCaching="true" />55</scripting>56</system.web.extensions>5758<system.webServer>59<validation validateIntegratedModeConfiguration="false"/>6061<modules>62<add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>63</modules>6465<handlers>66<remove name="WebServiceHandlerFactory-Integrated" />67<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>68<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>69<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />70</handlers>71</system.webServer>72</configuration>

Is your webservice flagged with the [ScriptService] attribute? If not, there's your problem. the new version uses that attribute to decide which services need to be serialized as JS objects.

Thanks, I didn't know that. I marked my service with [ScriptService] and also marked a method with [ScriptMethod] and I still get the "is not defined" error. Anything else I'm missing?
Might be the fact that you're removing your asmx handler after you add it.. . Put the <remove> as the first entry of the HttpHandlers section and see if that helps.
Moved that but am still getting the JS error. Thanks.

HI joshmccullough,

I think you have to provide us with more information:

What assembly is referenced in you project: System.web.extensions?

Paste your code of you webservice and also the webpage that's calling it. Thanks in advance!

Regards,

I am using a master page. I have a validation control which uses a webservice (see code below); this is where the service reference is added to the page. Note that the RenderJavaScript method is called during PreRender. There is more code involved but short of posting my whole project, here is the important stuff...

Web Service:

1"C#" Class="JSM.OpenFrame.WebServices.GenericLiveValidation" %>2using System;3using System.Web;4using System.Collections;5using System.Web.Services;6using System.Web.Services.Protocols;7using System.Web.Script.Services;8using JSM.OpenFrame.Common;9using JSM.OpenFrame.DataObjects;10using JSM.OpenFrame.Util;1112namespace JSM.OpenFrame.WebServices13{14 [WebService(Namespace ="JSM.OpenFrame.WebServices")]15 [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]16 [ScriptService]17public class GenericLiveValidation : System.Web.Services.WebService18 {19 [WebMethod]20public LiveValidationResponse ValidateEmailAddress(string emailAddress)21 {22if (!RegExUtil.ValidateEmailAddress(emailAddress))23return new LiveValidationResponse(false,"The email address field is invalid. Email addresses must be in the form \"user@.host.com\".");24else if (ContactUtil.DoesEmailAddressExist(emailAddress))25return new LiveValidationResponse(false,"This email address is already in use. Please try another.");26else27 return new LiveValidationResponse(true);28 }2930 [WebMethod]31 [ScriptMethod]32public LiveValidationResponse ValidatePassword(string username,string password)33 {34 JSM.OpenFrame.Util.LoginUtil.LoginResult result = LoginUtil.ProcessLogin(username, password);3536if (result == LoginUtil.LoginResult.BadPassword)37return new LiveValidationResponse(false,"The password you entered is not correct.");3839return new LiveValidationResponse(true);40 }41 }42}

Page:

1<%@. Page Language="C#" MasterPageFile="~/Main.master" AutoEventWireup="True" Inherits="MyAccount.AccountInfo" Title="Change Password" Codebehind="AccountInfo.aspx.cs" %>2<%@. MasterType VirtualPath="~/Main.master" %>3<%@. Register TagPrefix="WebControls" Assembly="JSM.OpenFrame" Namespace="JSM.OpenFrame.WebControls" %>4<%@. Register TagPrefix="Validation" Assembly="JSM.OpenFrame" Namespace="JSM.OpenFrame.WebControls.Validation" %>56<asp:Content ID="Content" ContentPlaceHolderID="_contentPlaceHolder" Runat="Server">7 <table cellspacing="1" cellpadding="2" class="Form_Table">8 <tbody>9 <tr>10 <td class="Form_Table_Label">Current Password:</td>11 <td class="Form_Table_Input" style="width: 250px;">12 <asp:TextBox ID="currentPassword" runat="server" CssClass="Form_Textbox_Wide" TextMode="Password" />13 </td>14 </tr>15 <tr>16 <td colspan="2" class="Form_Table_Seperator"></td>17 </tr>18 <tr>19 <td class="Form_Table_Label">New Password:</td>20 <td class="Form_Table_Input">21 <asp:TextBox ID="newPassword1" runat="server" CssClass="Form_Textbox_Wide" TextMode="Password" />22 </td>23 </tr>24 <tr>25 <td class="Form_Table_Label">New Password (again):</td>26 <td class="Form_Table_Input">27 <asp:TextBox ID="newPassword2" runat="server" CssClass="Form_Textbox_Wide" TextMode="Password" />28 </td>29 </tr>30 <tr>31 <td colspan="2" class="Form_Table_ButtonRow">32 <asp:Button ID="saveButton" runat="server" Text="Save" CssClass="Form_Button_Footer" />33 </td>34 </tr>35 </tbody>36 </table>37 <Validation:FormValidator runat="server">38 <Validation:LiveValidator runat="server" Required="true" TargetControlID="currentPassword" ServicePath="~/Services/GenericLiveValidation.asmx" ServiceMethod="JSM.OpenFrame.WebServices.GenericLiveValidation.ValidatePassword" />39 </Validation:FormValidator>40</asp:Content>

LiveValidator control:

1using System;2using System.Collections.Generic;3using System.Text;4using System.Web.UI.WebControls;5using System.Collections.Specialized;6using System.Web.UI;7using JSM.OpenFrame.Util;89namespace JSM.OpenFrame.WebControls.Validation10{11public class LiveValidator : ValidatorBase12 {13private string _servicePath;14private string _serviceMethod;1516public string ServicePath17 {18get {return _servicePath; }19set { _servicePath =value; }20 }2122public string ServiceMethod23 {24get {return _serviceMethod; }25set { _serviceMethod =value; }26 }2728protected override void RenderJavaScript()29 {30 ServiceReference service =new ServiceReference();31 WebControl control = (WebControl)CommonUtil.FindControlRecursive(_targetControlID,this.Page.Controls);32 StringBuilder script =new StringBuilder();3334 service.Path = _servicePath;35 ((BasePage)this.Page).AppendServiceReference(service);3637this.Page.ClientScript.RegisterClientScriptResource(this.GetType(),"JSM.OpenFrame.Resources.LiveValidator.js");38 control.Attributes.Add("onblur",this.ClientID +".Validate();");3940 script.Append("<script language=\"JavaScript\">\n");41 script.Append("\tvar " +this.ClientID +" = new LV_Object(\"" + this.ClientID + "\", document.getElementById(\"" + control.ClientID + "\"), \"" + _serviceMethod + "\", " + _required.ToString().ToLower() +");\n\n");42 script.Append("</script>");4344this.Page.ClientScript.RegisterStartupScript(this.GetType(),"LV_" +this.ClientID, script.ToString());45 }46 }47}

I was having this problem too when working using the 'web application' model.

If your project is called 'AJAXEnabledWebApplication1', your service has the namespace 'WebService' and the method is 'HelloWorld()' then you need to reference it using the full project namespace even if the aspx file is in the same folder as the asmx file:

AJAXEnabledWebApplication1.WebService.HelloWorld()

Annoyingly it works as expected (ie simply WebService.HelloWorld() works) when using the 'web site' model.

Any idea why this is the case?

Have fun
Finn

Ok, another problem I see is that you're using Page.ClientScript, which I believe is deprecated. The current way to make the reference should be:

ScriptManager sm = ScriptManager.GetCurrent(Page);ScriptReference script =new ScriptReference(pathToScript);sm.Scripts.Add(script);ServiceReference service =new ServiceReference(pathToService);sm.Services.Add(service);

For dnamically built js (sctrings like you have) it should be done w/ the static members of ScriptManager, eg.:

ScriptManager.RegisterClientScriptBlock(Page, type, key, script, addTags);

Hope that helps...

I am using a WebApplication project. I changed the code to use the ScriptManager instead. Still getting the same error. How do you figure out what the namespace should be for the webservice? Maybe I am doing that part wrong?

I don't actually see where you're calling the webservice at all, now that I'm looking at your js. As an aside, you really should use an embedded resource file instead of hardcoding the js like that, it' makes it a lto easier to debug and maintain.

Anyway, in theory your call should look something like this:

JSM.OpenFrame.WebServices.LiveValidator.ValidateEmailAddress(args,OnSuccess);where OnSuccessis another javascript function that fires off when that webservice returns without an errror.

I acutally am using embedded resources, those few lines just create the object (the real code is in the resource). That is what my call looks like. By the way, the full error message is "JSM is not defined" so its not even getting anywhere in the namespace...

If you take a look at the javascript returned from the webservice the first line will look something like this:

Type.registerNamespace('AJAXEnabledWebApplication1');

Try tagging AJAXEnabledWebApplication1. (ie the project root namespace that's trying to be registered by the JS) at the start of your function's namespace.

As the namespace registration works in a web project but not a web application I'm wondering what I'm missing here - or is it a bug?

Have fun
Finn

Ok, it is working now. Turns out I also had a compile error in the WebService (UGH). Even if I did not, it would not have worked since I did not marked the WS with [ScriptService]. Thanks for all the help, I am good to go...for now.

Web service and time zones problem in AJAX ASP.NET Beta 1.0

Hello, I have the followong exception, during requesting a webservice.

Requested URL:https://www.some_site.com/Services/Logout.asmx/js
Exception Message: Specified argument was out of the range of valid values.
Parameter name: utcDate
Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: utcDate
at System.Web.HttpCachePolicy.UtcSetLastModified(DateTime utcDate)
at System.Web.HttpCachePolicy.SetLastModified(DateTime date)
at Microsoft.Web.Script.Services.RestClientProxyHandler.ProcessRequest(HttpContext context)
at Microsoft.Web.Script.Services.ScriptHandlerFactory.HandlerWrapper.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Thread: IsImpersonating = False

As I investigated, the problem originates because utcDate in method UtcSetLastModified is the date in future. This happens because the time zone on our side differs from the server's time zone where we deploy our application.

Please, HELP!

Thanks for letting us know about this problem! This looks like a valid bug.

How are you deploying your app? Am I correct in guessing you are using the "Publish web site" feature of VS or the "aspnet_compiler"? If not, can you please let me know how you deploy it?

Do you mean that the time zone is different on the computer where you built your app and the server where you deploy?

Until we fix the bug, one workaround I can think of is to "touch" the precompiled dlls in our app's bin directory to update the last modfied time on them.

We build our application using MSBuild on local TFS (one time zone), and then just copy all builded dll's and other files to production server (it is in another time zone).

Another workaround i've found is to set in ScriptManager->ServiceRefrence InlineScript property to true, then all js for my web service will be included in the output page, so there's no need to requesthttps://www.some_site.com/Services/Logout.asmx/js

Web service call from javascript and SQL Server 2005 Express

Hi,

I'm developing a web application that uses Ajax to call web services using javascript.

The web service must connect to a SQL Server 2005 Database (express edition) and uses a dynamically created connection. The connection string used to create the connection is right because it works for web page data loading and it uses SQL server authentication mode.

In the development environment the application works correctly, but when deployed on a different machine with a different SQL Server installation, the sql connection in the web service fails returning the following error:

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.

I've tried all suggested changes in SQL Server Configuration Manager andSQL Server Surface Area Configuration, enabling both tcp/ip and named pipes for remote connection, but the connection is still not working.

The server has a windows XP professional SP2 operating system and windows firewall is active, but i have enabled http from lan and sql server access.

Can you suggest me something?

I must add or change something in the web.config file?

I feel?that this problem is in the permissions connecting Web?Service?to?SQL?Server?2005.I give you some suggestions for your reference as the following:
Try to add Network Service in the virtual directory permissions of IIS and make sure the execute permissions is Scripts and Executables through?right mouse clicking the virtual directory?and?choosing?properties?in?IIS.

Web Service Calls From AJAX - No Cross Domain? NOT!

The AJAX 2.0 documentation states that Web Services can not be called "cross domain". This is a browser side restriction, so says Microsoft support. While one might disagree, I think of cross-domain as meaning between machines on different internet domains (i.e. machine1.bigcompany.com and machine2.bigcompany.com are on the same domain while machine3.yourcompany.com is on a different domain). This is not what Microsoft means. The use of the term "cross domain" in the documentation means that machine1.bigcompany.com and machine2.bigcompany.com are on different domains and AJAX web service calls between them can not be made successfully . At least this is what MS support tells me. I have found however that I can create a page on machine1.bigcompany.com and call a web service on machine2.bigcompany.com. To do this requires that four conditions be true:

1) You use IE 7 as your browser;

2) do not select the "inline script" option on the scriptmanager/services attribute

3)call set_path in your javascript to set the endpoint of the web service to machine2;

4) both machine1.bigcompany.com and machine2.bigcompany.com are defined as within the INTRANET ZONE in IE 7.

Firefox has no option like "intranet zones" so I have been unable to get this to work with Firefox. I am still working on this.

By the way if you have the same AJAX web page deployed on two different machines (meeting the conditions discribed above) with AJAX "PageMethods" defined, you can call set_path on the

PageMethod using Javascript and make calls between machines for PageMethods also.

Hope This Helps

dlr

You can implment this for Cross Domain issue:
http://weblogs.asp.net/rashid/archive/2007/09/28/implement-jsonp-in-your-asp-net-application.aspx