InstanceContext持有的引用无法释放.

问题描述

我的Windows窗体客户端实现了回调合同，并使用双工通道与服务器通信.一切正常，除了程序完成后，我用来创建通道的InstanceContext仍然保留对回调对象的引用， 这是我的表格，因此，GC无法声明该内存.我尝试使用 OperationContext.Current

获取InstanceContext的引用，但它返回null.我做错了什么?

My windows form client implements a callback contract and uses a Duplex channel to talk to the sever. Everything works fine except that when my program finishes, the InstanceContext I used to create the channel still holds a reference to the callback object, which is my form and therefor, the GC cannot claim the memory. I tried to use theOperationContext.Current

to get reference of the InstanceContext but it returns null. What did I do wrong?

Feng

推荐答案

using (ServiceHost serviceHost = new ServiceHost(typeof(CalculatorService), baseAddress))
{
    serviceHost.Open();
    OperationContext operationContext = OperationContext.Current;
    InstanceContext instanceContext = operationContext.InstanceContext;
    instanceContext.ReleaseServiceInstance();
}

谢谢.

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