C#Can'；无法从SOAP服务读取嵌套节点

我正在调用一个SOAP服务，该服务返回一个XML响应，我将其捕获为服务契约中指定的类型。响应将某些嵌套节点显示为null，即使我在Fiddler中查看原始响应时，这些节点包含数据。查看服务生成的Reference.cs类，所有节点都指定了正确的XML命名空间。我想这可能和基本的TPBinding有关，但这只是一个猜测。下面是我的绑定，值很高，直到我让它工作

BasicHttpBinding binding = new BasicHttpBinding();
binding.Name = "ServiceSoapBinding";
binding.Security.Mode = BasicHttpSecurityMode.Transport;
binding.AllowCookies = true;
binding.MaxReceivedMessageSize = 20000000;
binding.MaxBufferSize = 20000000;
binding.MaxBufferPoolSize = 20000000;
binding.ReaderQuotas.MaxDepth = 32;
binding.ReaderQuotas.MaxArrayLength = 20000000;
binding.ReaderQuotas.MaxStringContentLength = 20000000;
EndpointAddress address = new EndpointAddress("https://serviceURL");
var client = new ServiceClient(binding, address);

下面是响应将其视为null的类，即使我知道服务正在返回数据：

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Xml", "4.0.30319.34234")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://NamespaceURL")]
public partial class CustomerType: object, System.ComponentModel.INotifyPropertyChanged
{...}

有什么想法吗