若要增加配额，请使用相应绑定元素上的 MaxReceivedMessageSize 属性

在WCF/WebService中，如果返回值过大，比如Array,List,DataSet等达到一定数量级的话，可能引发下面的异常：

WebService代码

Client端代码

1. 受信Message Quota Size超过65536 (System.ServiceModel.CommunicationException)

解决方法：修改客户端配置文件app.config 的 maxReceivedMessageSize，maxBufferSize 两个属性。

但是，数量级继续增大，还会遇到新的问题：

2. MaxItemsInObjectGraph Quta Size超过65536（InnerException:System.Runtime.SerializationException)

 

因为关联配置节点比较多，这个时候就得动用 WCF Service Configuration Edition 来修改了。

(1) 打开app.config 修改 Advanced 节点，为 Endpoint Behaviors 添加一个新的Behavior：“dataContractSerializer”, 修改该属性“MaxItemsInObjectGraph”的值

(2) 修改Client节点的Endpoints的Service1Soap的BehaviorConfiguration关联上刚才增加的NewBehavior

(3) 保存

生成XML如下，其中红色部分是被修改的部分：
<behavior name="NewBehavior"> 
    <dataContractSerializer maxItemsInObjectGraph="65536000" /> 
</behavior> 

...

<endpoint address="http://localhost:3511/Service1.asmx" behaviorConfiguration="NewBehavior" 
                binding="basicHttpBinding" bindingConfiguration="Service1Soap" 
                contract="WebSvc.Service1Soap" name="Service1Soap" />

 

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <behaviors>
            <endpointBehaviors>
                <behavior name="NewBehavior">
                    <dataContractSerializer maxItemsInObjectGraph="65536000" />
                </behavior>
            </endpointBehaviors>
        </behaviors>
        <bindings>
            <basicHttpBinding>
                <binding name="Service1Soap" closeTimeout="00:01:00" openTimeout="00:01:00"
                    receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false"
                    bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
                    maxBufferSize="65536000" maxBufferPoolSize="524288" maxReceivedMessageSize="65536000"
                    messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
                    useDefaultWebProxy="true">
                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                    <security mode="None">
                        <transport clientCredentialType="None" proxyCredentialType="None"
                            realm="" />
                        <message clientCredentialType="UserName" algorithmSuite="Default" />
                    </security>
                </binding>
            </basicHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://localhost:3511/Service1.asmx" behaviorConfiguration="NewBehavior"
                binding="basicHttpBinding" bindingConfiguration="Service1Soap"
                contract="WebSvc.Service1Soap" name="Service1Soap" />
        </client>
    </system.serviceModel>
</configuration>