小编Dal*_*yKD的帖子

我的WCF服务有一个OperationContract,它接受一个对象数组作为参数.这可能非常大.在寻找Bad Request:400的修复程序后,我找到了真正的原因:最大邮件大小.

我知道之前在很多地方已经提出过这个问题.我已经尝试过每个人都说:"增加客户端和服务器配置文件的大小." 我有.它仍然无法正常工作.

我的服务的web.config:

<system.serviceModel>
    <services>
      <service name="myService">
        <endpoint name="myEndpoint" address=""
                  binding="basicHttpBinding"
                  bindingConfiguration="myBinding"
                  contract="Meisel.WCF.PDFDocs.IPDFDocsService" />
      </service>
    </services>
    <bindings>
      <basicHttpBinding>
        <binding name="myBinding"
                 closeTimeout="00:11:00"
                 openTimeout="00:11:00"
                 receiveTimeout="00:15:00"
                 sendTimeout="00:15:00"
                 maxBufferSize="2147483647"
                 maxReceivedMessageSize="2147483647"
                 maxBufferPoolSize="2147483647"
                 transferMode="Buffered"
                 allowCookies="false"
                 bypassProxyOnLocal="false"
                 hostNameComparisonMode="StrongWildcard"
                 messageEncoding="Text"
                 textEncoding="utf-8"
                 useDefaultWebProxy="true">
          <readerQuotas maxDepth="2147483647"
                        maxStringContentLength="2147483647"
                        maxArrayLength="2147483647"
                        maxBytesPerRead="2147483647"
                        maxNameTableCharCount="2147483647" />
          <security mode="None" />
        </binding>
      </basicHttpBinding>
    </bindings>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
          <dataContractSerializer maxItemsInObjectGraph="2147483647" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>

我的客户端的app.config:

<system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_IPDFDocsService"
                 closeTimeout="00:11:00"
                 openTimeout="00:11:00"
                 receiveTimeout="00:10:00"
                 sendTimeout="00:11:00"
                 allowCookies="false"
                 bypassProxyOnLocal="false" …

LINQ-to-SQL一直是我的PITA.我们使用它与数据库进行通信,然后通过WCF将实体发送到Silverlight应用程序.一切都运行正常,直到开始编辑(CUD)实体及其相关数据.

我终于能够设计两个允许CUD的for循环.我试着重构它们,而我非常接近,直到我得知我不能总是用L2S做Lambda.

public static void CudOperation<T>(this DataContext ctx, IEnumerable<T> oldCollection, IEnumerable<T> newCollection, Func<T, T, bool> predicate)
    where T : class
{
    foreach (var old in oldCollection)
    {
        if (!newCollection.Any(o => predicate(old, o)))
        {
            ctx.GetTable<T>().DeleteAllOnSubmit(ctx.GetTable<T>().Where(o => predicate(old, o)));
        }
    }

    foreach (var newItem in newCollection)
    {
        var existingItem = oldCollection.SingleOrDefault(o => predicate(o, newItem));
        if (existingItem != null)
        {
            ctx.GetTable<T>().Attach(newItem, existingItem);
        }
        else
        {
            ctx.GetTable<T>().InsertOnSubmit(newItem);
        }
    }
}

被称为:

ctx.CudOperation<MyEntity>(myVar.MyEntities, newHeader.MyEntities,
    (x, y) => x.PkID == y.PkID && x.Fk1ID == y.Fk1ID && …