(Server Error 400 Bad Request) Configuration for wcf client (windows forms)?

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superkuton replied on Sun, May 27 2012 9:22 PM

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Hello JonnyBee,

It is occurring only in the WinForms client.

Does increasing the MaxBufferSize/MaxReceiveMessagesize mean changing my app.config (WinForm client) to include the settings for the wsHttpBinding?

I am just new to WCF, pardon me, but does this have to do with the compression in SL but none in WinForm?

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JonnyBee replied on Mon, May 28 2012 1:30 AM

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It has to with WCF default limits inbound/outbound message to maximum size of 64K.

If a message arrives with larger content you 400 : Bad Message exception.

Yes, it means that you should try and change tha app config on your WinForm client - as per the instrictions in the FAQ.

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superkuton replied on Mon, May 28 2012 8:13 PM

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thanks JonnyBee.

I tried but the error still exists, only in the WinForms.

I have the following configs:

WCF web.config:

(in the system.servicemodel)

 <bindings>
      <basicHttpBinding>
        <binding name="basicHttpBinding_IWcfPortal"                
                 maxReceivedMessageSize="2147483647"
                 maxBufferPoolSize="2147483647"
                 maxBufferSize="2147483647">
          <readerQuotas maxBytesPerRead="2147483647"
                        maxArrayLength="2147483647"
                        maxStringContentLength="2147483647"
                        maxNameTableCharCount="2147483647"
                        maxDepth="2147483647"/>
        </binding>
      </basicHttpBinding>
      <wsHttpBinding>
        <binding name="wsHttpBinding_IWcfPortal"
                 maxReceivedMessageSize="2147483647">
          <readerQuotas maxBytesPerRead="2147483647"
                        maxArrayLength="2147483647"
                        maxStringContentLength="2147483647"
                        maxNameTableCharCount="2147483647"
                        maxDepth="2147483647"/>
        </binding>
      </wsHttpBinding>
    </bindings>

WINFORM app.config:

(in full)

<?xml version="1.0"?>
<configuration>

 
  <appSettings>
    <add key="CslaDataPortalProxy" value="Csla.DataPortalClient.WcfProxy, Csla"/>
    <add key="CslaDataPortalUrl" value="http://localhost:2645/WcfPortal.svc"/>
    <add key="CslaPropertyChangedMode" value="Windows"/>   
  </appSettings>
 
  <system.serviceModel>
    <bindings>
      <wsHttpBinding>
        <binding name="wsHttpBinding_IWcfPortal"
                 maxReceivedMessageSize="2147483647">
          <readerQuotas maxBytesPerRead="2147483647"
                        maxArrayLength="2147483647"
                        maxStringContentLength="2147483647"
                        maxNameTableCharCount="2147483647"
                        maxDepth="2147483647"/>
        </binding>
      </wsHttpBinding>
    </bindings>   
  </system.serviceModel>

  <system.web>
    <httpRuntime maxRequestLength="2147483647" />
  </system.web>
 
</configuration>

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JonnyBee replied on Tue, May 29 2012 12:47 AM

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Hi,

superkuton:

  <appSettings>
    <add key="CslaDataPortalProxy" value="Csla.DataPortalClient.WcfProxy, Csla"/>
    <add key="CslaDataPortalUrl" value="http://localhost:2645/WcfPortal.svc"/>
    <add key="CslaPropertyChangedMode" value="Windows"/>   
  </appSettings>

The above settings should be sufficient as CSLA will auto-configure the rest. 

(from Csla.DataPortalClient.WcfPortal.cs)

    protected virtual ChannelFactory<IWcfPortal> GetChannelFactory()
    {
      // if dataportal url is specified use this with default wsHttBinding
      if (!string.IsNullOrEmpty(ApplicationContext.DataPortalUrlString))
      {
        var binding = new WSHttpBinding()
        { 
          MaxReceivedMessageSize = int.MaxValue, 
          ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas() 
          {
            MaxBytesPerRead = int.MaxValue,
            MaxDepth = int.MaxValue,
            MaxArrayLength = int.MaxValue,
            MaxStringContentLength = int.MaxValue,
            MaxNameTableCharCount = int.MaxValue
          }
        };
        return new ChannelFactory<IWcfPortal>(binding, new EndpointAddress(ApplicationContext.DataPortalUrl));
      }
 
      // else return a channelfactory that uses the endpoint configuration in app.config/web.config
      return new ChannelFactory<IWcfPortal>(_endPoint);
    }

You must be aware that declaring the bindings doesn't necessarily mean that CSLA or WCF will pick it up.

To dig deeper into the issue use Fiddler (http://www.fiddlertool.com) or a network package monitor to capture the messages and inspect how they are sent to the server and when the error happends.

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superkuton replied on Tue, May 29 2012 2:26 AM

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I changed the app.config to the original configuration without the additional settings on bindings, etc.

Tried to work with Fiddler, but I don't know how to use it, even after viewing their videos and poring over their documentation.

I think the error is not only on my application, but i checked on the PTracker sample and found out the same results.

In the winforms UI of the PTracker, in the RoleEdit winform, I can no longer add another role after the 8th record.

But in the SL UI, there's no problem.

I hope you can check more on this JonnyBee.

Thanks for the help, I am sorry I don't know how to use Fiddler.

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superkuton replied on Tue, May 29 2012 4:03 AM

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Yes, that did it JonnyBee!

Following the PTracker configurations, I also incorrectly configured my wcf.

Thanks a lot, really!