Question

我正在尝试制作Xamarin应用程序，它将通过WCF通过WSDL处理Web服务。我有.wsdl文件和.cs文件由SvcUtil使用.wsdl文件生成。

当我做下一个时：

ServiceClient _mobileService;

    public void Initialize()
    {
        var binding = new BasicHttpBinding(BasicHttpSecurityMode.TransportWithMessageCredential)
        {
            MaxReceivedMessageSize = long.MaxValue,
            MaxBufferSize = int.MaxValue,
            MaxBufferPoolSize = long.MaxValue,
            ReceiveTimeout = TimeSpan.FromMinutes(0.5),
            SendTimeout = TimeSpan.FromMinutes(0.5),
            OpenTimeout = TimeSpan.FromMinutes(0.5),
            CloseTimeout = TimeSpan.FromMinutes(0.5),
            ReaderQuotas =
            {
                MaxArrayLength = int.MaxValue,
                MaxBytesPerRead = int.MaxValue,
                MaxDepth = int.MaxValue,
                MaxNameTableCharCount = int.MaxValue,
                MaxStringContentLength = int.MaxValue
            },
            Security = {Mode = BasicHttpSecurityMode.Transport}
        };

        var endpoint = new EndpointAddress("https://ThereIsMySite/PathToService");

        _mobileService = new ServiceClient(binding, endpoint);
        _mobileService.InnerChannel.OperationTimeout = TimeSpan.FromMinutes(1);

我有例外：

System.InvalidOperationException: Operation 'activateAsync' contains a message with    parameters. Strongly-typed or untyped message can be paired only with strongly-typed, untyped or void message.

 at System.ServiceModel.Dispatcher.OperationFormatter.Validate (System.ServiceModel.Description.OperationDescription od, Boolean isRpc, Boolean isEncoded) [0x00000] in <filename unknown>:0 
  at System.ServiceModel.Dispatcher.OperationFormatter..ctor (System.ServiceModel.Description.OperationDescription od, Boolean isRpc, Boolean isEncoded) [0x00000] in <filename unknown>:0

然后我在控制台项目（.Net 4.5）中尝试了相同的代码，并且没有错误。

有没有知道如何让它在Xamarin上运行？

提前致谢。

Answer 1

不幸的是Mono还不支持BasicHttpSecurityMode.TransportWithMessageCredential，你可能想要使用 BasicHttpSecurityMode.Transport目前。

参考：http://forums.xamarin.com/discussion/comment/44741/#Comment_44741

Xamarin：初始化WSDL ServiceClient时出现System.InvalidOperationException

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