.net Can'；t从WPF应用程序访问WCF websocket服务

我正试图通过WebSocket使用一个简单的WCF服务（netHttpBinding with

transportUsage=“Always”

）

从控制台应用程序使用服务时，它工作正常，但从WPF应用程序使用服务时，会引发超时错误：

<system.serviceModel>
    <bindings>
        <netHttpBinding>
            <binding name="NetHttpBinding_IService1">
                <webSocketSettings transportUsage="Always" />
            </binding>
        </netHttpBinding>
    </bindings>
    <client>
        <endpoint address="ws://localhost:8733/Design_Time_Addresses/WcfServiceLibrary1/Service1/"
            binding="netHttpBinding" bindingConfiguration="NetHttpBinding_IService1"
            contract="ServiceReference1.IService1" name="NetHttpBinding_IService1">
            <identity>
                <dns value="localhost" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>

此请求操作已发送到 在配置的超时（00:01:00）内未收到答复

从

transportUsage=“始终”

切换到

transportUsage=“从不”

时没有超时

如何从WPF应用程序访问websocket WCF服务？

服务合同：

[ServiceContract]
public interface IService1
{
    [OperationContract]
    string GetData(int value);

}

服务：

public class Service1 : IService1
{
    public string GetData(int value)
    {
        return string.Format("You entered: {0}", value);
    }
}

配置：

<system.serviceModel>
  <services>
    <service name="WcfServiceLibrary1.Service1">
      <host>
        <baseAddresses>
          <add baseAddress = "http://localhost:8733/Design_Time_Addresses/WcfServiceLibrary1/Service1/" />
        </baseAddresses>
      </host>
      <endpoint address="" binding="netHttpBinding" contract="WcfServiceLibrary1.IService1" bindingConfiguration="My_NetHttpBindingConfig">
        <identity>
          <dns value="localhost"/>
        </identity>
      </endpoint>
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    </service>
  </services>
  <bindings>
    <netHttpBinding>
      <binding name="My_NetHttpBindingConfig">
        <webSocketSettings transportUsage="Always"/>
      </binding>
    </netHttpBinding>
  </bindings>
  <behaviors>
    <serviceBehaviors>
      <behavior>
        <serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
        <serviceDebug includeExceptionDetailInFaults="False" />
      </behavior>
    </serviceBehaviors>
  </behaviors>
</system.serviceModel> 

WPF代码（不工作）：

WPF和控制台应用程序的配置相同：

<system.serviceModel>
    <bindings>
        <netHttpBinding>
            <binding name="NetHttpBinding_IService1">
                <webSocketSettings transportUsage="Always" />
            </binding>
        </netHttpBinding>
    </bindings>
    <client>
        <endpoint address="ws://localhost:8733/Design_Time_Addresses/WcfServiceLibrary1/Service1/"
            binding="netHttpBinding" bindingConfiguration="NetHttpBinding_IService1"
            contract="ServiceReference1.IService1" name="NetHttpBinding_IService1">
            <identity>
                <dns value="localhost" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>

---

我刚刚在另一个论坛上收到了答案：这是主UI通道上的死锁

详细说明和解决方法可在此处找到：

<system.serviceModel>
    <bindings>
        <netHttpBinding>
            <binding name="NetHttpBinding_IService1">
                <webSocketSettings transportUsage="Always" />
            </binding>
        </netHttpBinding>
    </bindings>
    <client>
        <endpoint address="ws://localhost:8733/Design_Time_Addresses/WcfServiceLibrary1/Service1/"
            binding="netHttpBinding" bindingConfiguration="NetHttpBinding_IService1"
            contract="ServiceReference1.IService1" name="NetHttpBinding_IService1">
            <identity>
                <dns value="localhost" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>