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How do I dispose of WCF client?
The Problem Dispose() unconditionally calls Close() . This will try to make a graceful shutdown of the communications channel with the server. If the channel is in a faulted state this is not allowed and an exception is thrown. The correct thing to do in that case is to call Abort() instead.
What is the best way to ensure an object implementing IDisposable is disposed?
You should always implement ~MyObject() when you implement IDisposable . Its purpose is to give the garbage collector a way to ensure your object is always disposed of in case the people who are using it fail to take care of that themselves. If your finalizer is doing much more than calling this.
Does not implement IDisposable dispose?
A class derived from a class that implements the IDisposable interface shouldn’t implement IDisposable, because the base class implementation of IDisposable. Dispose is inherited by its derived classes. If you do provide a finalizer, it must call the Dispose(bool) overload with a disposing argument of false .
How do you call IDisposable disposal?
When implementing this method, ensure that all held resources are freed by propagating the call through the containment hierarchy. For example, if an object A allocates an object B, and object B allocates an object C, then A’s Dispose implementation must call Dispose on B, which must in turn call Dispose on C.
Should I close WCF client?
You should close it as advised. And yes, if you’re using the async methods then you have to close it only after the call completes. Creating (opening) and closing clients is the norm for WCF clients. There is no noticeable performance penalty for continuously creating and closing new clients.
How does WCF client catch fault exceptions?
Fault exception in WCF
- Create a WCF Service Application named “FaultException”. Write an operation contract in the interface of the default file named “IService1. cs”.
- Create the console application named “ClientApp” for the client. Right-click on the project and select “Add Service Reference”.
When to use finalize vs dispose?
The method finalize( ) is invoked by the garbage collector. Method dispose( ) is used to free unmanaged resources whenever it is invoked. Method finalize( ) is used to free unmanaged resources before the object is destroyed. The method dispose( ) is to be implemented whenever there is a close( ) method.
Does using automatically call Dispose?
4 Answers. Dispose() will not be called automatically. If there is a finalizer it will be called automatically. Implementing IDisposable provides a way for users of your class to release resources early, instead of waiting for the garbage collector.
Is Dispose called immediately after using?
Dispose is never called by the . NET Framework; you must call it manually – preferably by wrapping its creation in a using() block. Explicitly setting a disposable object to null without calling Dispose() on it is a bad thing to do.
How is an IDisposable disposed in a container?
Any service that the built-in container creates in order to fill a dependency, which also implements IDisposable, will be disposed by the container at the appropriate point.
When to use the using statement in WCF?
The using statement is an excellent and common pattern for automatically disposing IDisposable objects at the end of the code block. Avoiding Problems with the Using Statement describes how even though the WCF client is disposable, developers should NOT use the using statement with them. The C# “using” statement results in a call to Dispose ().
When do client object channels close in WCF?
Typically, client object channels are closed in one of the following ways: When the WCF client object is recycled. When the client application calls ClientBase .Close. When the client application calls ICommunicationObject.Close.
When to use close and abort in WCF?
This is the same as Close(), which may throw exceptions when a network error occurs. Because the call to Dispose() happens implicitly at the closing brace of the “using” block, this source of exceptions is likely to go unnoticed both by people writing the code and reading the code. This represents a potential source of application errors.