1.找不到System.Web.Script.Services
在VS2005，新建一个WEBSERVICE，为使此WEBSERVICE能给客户端脚本调用，故加上[ScriptService]属性.
但提示"找不到类型或命名空间名称“ScriptService”(是否缺少 using 指令或程序集引用?) ".
添加引用"using System.Web.Script.Services;".
编译还是不通过! 原因是System.Web.Script.Services找不到!
通过查找,是需要在项目中添加System.Web.Extension 引用!
2.sys 末定义
在配置文件中的<system.web>节点中加上如下配置：
1 <httpHandlers>
2 <remove verb="*" path="*.asmx"/>
3 <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
4 <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"/>
5 <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"/>
6 </httpHandlers>
2 <remove verb="*" path="*.asmx"/>
3 <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
4 <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"/>
5 <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"/>
6 </httpHandlers>
3.Sys.WebForms.PageRequestManager.getInstance() 方法未定义
将ScriptManager放在script前面