Silverlight 调用WCF常见错误

错误1 

错误描述：The Remote Server returned an error: NotFound

可能原因：WCF服务本身对数据包进行了限制，最大不能超过65535，Silverlight发送大数据包到服务器端(例如图片直接存于数据库)，   WCF返回以上错误。

解决方法：

（1）修改Silverlight端ServiceReferences.ClientConfig文件，增加Buffer 尺寸。
<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

--><bindings> 
      <basicHttpBinding> 
                <binding name="BasicHttpBinding_IDataService" 
                         maxBufferSize="2147483647" 
                         maxReceivedMessageSize="2147483647"> 
                    <security mode="None" /> 
                </binding> 
       </basicHttpBinding> 
</bindings>

（2）修改服务器端，在Web.config中添加自定义BasicHttpBinding对象，

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

--><bindings> 
   <basicHttpBinding> 
     <binding name="BasicHttpBinding_IDataService" 
         maxBufferPoolSize="2147483647" 
         maxReceivedMessageSize="2147483647" 
         maxBufferSize="2147483647"> 
       <readerQuotas 
           maxArrayLength="2147483647" 
           maxBytesPerRead="2147483647" 
           maxDepth="2147483647" 
           maxNaMetableCharCount="2147483647" 
           maxStringContentLength="2147483647" /> 
     </binding> 
   </basicHttpBinding> 
</bindings>

另外，在ServiceBehaviors中添加maxItemsInObjectGraph属性

　服务器端：web.config

< system.serviceModel>
    < behaviors>
      < serviceBehaviors>
        < behavior name= "ExcelServer.Service1Behavior"> <!--name=命名空间(ExcelServer)+类名(Server1)+Bheavior-->
          < serviceMetadata httpGetEnabled= "true" />
          < serviceDebug includeExceptionDetailInFaults= "false" />
          < dataContractSerializer maxItemsInObjectGraph= "2147483647" />
        < /behavior>
    
      < /serviceBehaviors>
    < /behaviors>
    < services>
      < service behaviorConfiguration= "ExcelServer.Service1Behavior"  name= "ExcelServer.Service1"> <!--name=命名空间(ExcelServer)+类名(Server1)-->

        < endpoint address= ""  bindingConfiguration= "LargeBuffer"  binding= "basicHttpBinding"  contract= "ExcelServer.IService1" />

<!--name=命名空间(ExcelServer)+接口(IServer1)-->


      < /service>
    < /services>
    < bindings>
      < basicHttpBinding>
        < binding name= "LargeBuffer"  maxBufferSize= "2147483647"  maxReceivedMessageSize= "2147483647"> <!--name=随意命名-->
          < readerQuotas maxStringContentLength= "2147483647"  maxArrayLength= "2147483647" />
          < security mode= "None">< /security>
        < /binding>
      < /basicHttpBinding>
    < /bindings>
  < /system.serviceModel>
 < system.webServer>
   
    < modules runAllManagedModulesForAllRequests= "true" />
  < /system.webServer>

错误2