从配置文件读取这些值之后，CreateBindingElement方法充当一个入口点，并将这些值转换成定制的捆绑元素的适当的属性。
我们需要注意的事项如下所示：CreateBindingElement方法，它充当一个入口点。
注意，我们可以通过配置修改捆绑元素的messageversion属性，但是为简单起见，我们在此不对此加以讨论。
·ApplyConfiguration方法，它使我们可以显式指定属性。
·ReaderQuotas，它用来给CustomMesssageEncodingBindingElement指定属性。
·值ReaderQuotas.MaxArrayLength可以控制请求大小。因为这个例子使用定制的捆绑，所以需要将其设为捆绑元素。
最后，需要实现CustomBindingElement的配置部分。对于客户端，配置看上去是这样的：
<system.serviceModel>
<extensions>
<bindingElementExtensions>
<add name="customMessageEncoding" type="
Infrastructure.CustomEncoder.CustomMessageEncodingElement,
assemblyname" />
</bindingElementExtensions>
</extensions>
<bindings>
<customBinding>
<binding name="myBinding">
<customMessageEncoding innerMessageEncoding=
"textMessageEncoding" enableCompression="false"
compressionEncode="gzip">
<readerQuotas maxArrayLength="62914560" ></readerQuotas>
</customMessageEncoding >
<httpTransport maxBufferSize="62914560"
maxReceivedMessageSize="62914560"
authenticationScheme="Anonymous"
proxyAuthenticationScheme="Anonymous"
useDefaultWebProxy="true"
/>
</binding>
</customBinding>
</bindings>
<client>
<endpoint address="http://127.0.0.1/mywcf.services/service1.svc"
binding="customBinding" bindingConfiguration="myBinding"
contract="IService" name="Service1">
</endpoint>
</client>
</system.serviceModel>
<extensions>
<bindingElementExtensions>
<add name="customMessageEncoding" type="
Infrastructure.CustomEncoder.CustomMessageEncodingElement,
assemblyname" />
</bindingElementExtensions>
</extensions>
<bindings>
<customBinding>
<binding name="myBinding">
<customMessageEncoding innerMessageEncoding=
"textMessageEncoding" enableCompression="false"
compressionEncode="gzip">
<readerQuotas maxArrayLength="62914560" ></readerQuotas>
</customMessageEncoding >
<httpTransport maxBufferSize="62914560"
maxReceivedMessageSize="62914560"
authenticationScheme="Anonymous"
proxyAuthenticationScheme="Anonymous"
useDefaultWebProxy="true"
/>
</binding>
</customBinding>
</bindings>
<client>
<endpoint address="http://127.0.0.1/mywcf.services/service1.svc"
binding="customBinding" bindingConfiguration="myBinding"
contract="IService" name="Service1">
</endpoint>
</client>
</system.serviceModel>
上面创建的定制的捆绑使用新的CustomMessageEncoding。请求通常不需要压缩，因为它们通常很小;事实上，压缩它们反而会增加请求的尺寸。因此，以上显示的客户端配置文件了enableCompression ="false"的设置。服务器配置看起来象这样：
<system.serviceModel>
<extensions>
<bindingElementExtensions>
<add name="customMessageEncoding" type="
Infrastructure.CustomEncoder.CustomMessageEncodingElement,
assemblyname" />
</bindingElementExtensions>
</extensions>
<bindings>
<customBinding>
<binding name="myBinding">
<customMessageEncoding
innerMessageEncoding="textMessageEncoding"
enableCompression="true"
compressionEncode="gzip">
<readerQuotas
maxArrayLength="62914560" >
</readerQuotas>
</customMessageEncoding >
<httpTransport maxBufferSize="62914560"
maxReceivedMessageSize="62914560"
authenticationScheme="Anonymous"
proxyAuthenticationScheme="Anonymous"
useDefaultWebProxy="true" />
</binding>
</customBinding>
<bindings>
<services>
<service behaviorConfiguration="Host.Behavior"
name="Host.Service">
endpoint address=""
binding="customBinding"
bindingConfiguration="myBinding"
contract="ServiceContracts.IService" />
<endpoint address="mex" binding="mexHttpBinding"
contract="IMetadataExchange" />
</service>
</services>
</system.serviceModel>
<extensions>
<bindingElementExtensions>
<add name="customMessageEncoding" type="
Infrastructure.CustomEncoder.CustomMessageEncodingElement,
assemblyname" />
</bindingElementExtensions>
</extensions>
<bindings>
<customBinding>
<binding name="myBinding">
<customMessageEncoding
innerMessageEncoding="textMessageEncoding"
enableCompression="true"
compressionEncode="gzip">
<readerQuotas
maxArrayLength="62914560" >
</readerQuotas>
</customMessageEncoding >
<httpTransport maxBufferSize="62914560"
maxReceivedMessageSize="62914560"
authenticationScheme="Anonymous"
proxyAuthenticationScheme="Anonymous"
useDefaultWebProxy="true" />
</binding>
</customBinding>
<bindings>
<services>
<service behaviorConfiguration="Host.Behavior"
name="Host.Service">
endpoint address=""
binding="customBinding"
bindingConfiguration="myBinding"
contract="ServiceContracts.IService" />
<endpoint address="mex" binding="mexHttpBinding"
contract="IMetadataExchange" />
</service>
</services>
</system.serviceModel>
通过阅读本文，您会发现向我们的WCF消息应用程序添加定制的编码不仅简单，而且还是透明的。我们的示例代码不仅包含了文中描述的class属性的详尽的源代码，而且还提供了所需的配置章节。
