Ajax的Web.config配置

In order for your ASP.NET 2.0 applications to understand AJAX, you need to modify your Web.Config file settings to explain what the server side controls like UpdatePanel mean. So, here it goes.

Start Visual Studio 2005 and open your existing ASP.NET 2.0 Website / Application. Open the Web.Config file and start adding the following settings to the same:- (Forewarning: Modifying Web.Config incorrectly makes your site inaccessible and I would suggest you take a back up of your existing web.config file before making the following changes. This article is intended for people with prior experience in dealing with web.config file, settings etc., and if you arent very convenient working with the Web.Config file, make your administrator or other experienced developers make these changes)

1. Below the <configuration> tag, add the following settings:-

What we have done in this step is registering the System.Web.Extensions namespace, the assembly and its various handlers that are useful in handling AJAX for your ASP.NET 2.0 Application.

2. Then, below the <system.web> add the following settings:-

In this step, we registered the tagprefix of ASP for the ASP.NET AJAX Server controls like UpdatePanel so that we can use the same <asp: prefix while using the same in your pages. Ex.- <asp:UpdatePanel>

3. Then find the <compilation debug="false" /> and you need to replace this line with the following settings:-

This step enables compilation for your website and adds the reference assembly for System.Web.Extensions.

4. Then below the compilation settings (above step), add the following:-

What we have done here is to register the Http Handler and specify that Web Services might be handled using Javascript (asynchronous callback) as well as add the ScriptModule Http Module.

5. Then, after the </system.web> end tag, add the following system.web.extensions settings:-

<system.web.extensions>
<scripting>
<webServices>






</webServices>

</scripting>
</system.web.extensions>

In this step, we have additional steps where we can play with JSON Serialization settings and enabling some of the Application Services like AuthenticationService, ProfileService etc.,

6. Thereafter, add the following system.webServer settings:-

<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</modules>
<handlers>
<remove name="WebServiceHandlerFactory-Integrated"/>
<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"/>
<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"/>
<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"/>
</handlers>
</system.webServer>

The above steps registers the ScriptHandlerFactory for Webservices and the AXD that needs to handle the requests.

Once you have added the above settings, you would be able to add Script Manager tag to your pages and also use the server side controls like UpdatePanel, UpdateProgress etc., as well as the Sys Microsoft AJAX Library namespace and its classes.

All of the above steps are required only when you are upgrading your existing ASP.NET 2.0 Applications to AJAX. However, if you use the "File - New - ASP.NET AJAX Enabled Website" template to create your website, all the above settings would be added automatically to your web.config file and you can directly start using the AJAX Server Side controls and other Library functions.

Hope this helps.

Cheers !!!

Here is the completed configuration.

<?xml version="1.0"?>

</sectionGroup>

</configSections>

<system.web>

<pages>

</controls>

</pages>

<!--

Set compilation debug="true" to insert debugging

symbols into the compiled page. Because this

affects performance, set this value to true only

during development.

-->

</assemblies>

</compilation>

</httpHandlers>

</httpModules>

</system.web>

<system.web.extensions>

<!--

</converters>

</jsonSerialization>

-->

<!--

-->

<!-- Uncomment these lines to enable the profile service. To allow profile properties to be retrieved

and modified in ASP.NET AJAX applications, you need to add each property name to the readAccessProperties and

writeAccessProperties attributes. -->

<!--

<profileService enabled="true"

readAccessProperties="propertyname1,propertyname2"

writeAccessProperties="propertyname1,propertyname2" />

-->

</webServices>

<!--

-->

</scripting>

</system.web.extensions>

<system.webServer>

</modules>

<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"/>

<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"/>

</handlers>

</system.webServer>

</configuration>

若想取DataTable等大型数据，则修改以下代码中的maxJsonLength="500"的大小即可满足需求

<!--

</converters>

</jsonSerialization>

-->

posted @ 2009-07-09 13:38 Devil_Zhang 阅读(1267) 评论(0) 编辑收藏举报

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Ajax的Web.config配置

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