Which type of exception can be thrown from WCF service?

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Which type of exception can be thrown from WCF service?

Fault exceptions are exceptions that are thrown by a WCF service when an exception occurs at runtime — such exceptions are typically used to transmit untyped fault data to the service consumers.

How does WCF client catch fault exceptions?

Fault exception in WCF

  1. Create a WCF service application that has an operation contract for the division of 2 passed values by the client.
  2. Create a Console application and add a reference for the WCF service into it. Then access the method of the WCF service to do the division of passed values.

What is difference between communication exception and fault exception in WCF?

Exceptions are used to communicate errors locally within the service or the client implementation. Faults, on the other hand, are used to communicate errors across service boundaries, such as from the server to the client or vice versa. The first section provides guidance on when and how to define and throw exceptions.

Which property must be set in WCF configuration to allow users to see exception details of a WCF method?

The IErrorHandler implementation must be added to the ErrorHandlers property of the service. There are basically two easy ways of doing this. Both require some code that is too much to post here but you can find it on MSDN or from this CodeProject.com example.

Which type of contract is used to interface with WCF service?

Service Contract
The Service Contract declares an interface in the WCF service for the client to get access to the interface. The Operation Contract declares a function inside the interface, the client will call this function.

Which of the following contract is not supported by WCF?

The service contract is not supported in the wcf client.

How would you handle a WCF exception in a client?

Error handling in WCF is performed by one or more of the following:

  1. Directly handling the exception thrown. This is only done for communication and proxy/channel errors.
  2. Using fault contracts.
  3. Implementing the IErrorHandler interface.
  4. Handling ServiceHost events.

What is fault exception?

Fault exceptions are triggered when the processor detects an error such as the execution of an undefined instruction, or when the bus system returns an error response to a memory access.

How fault contract is implemented in WCF?

Raise the exception from the service by creating an instance and assigning properties of the custom exception.

  1. Step 1: Defining the type using Data Contract.
  2. Step 2: Decorate the service operation with the FaultContract.
  3. Step 3: Raise the exception from the service.

What are different types of contracts in WCF?

WCF has five types of contracts: service contract, operation contract, data contract, message contract and fault contract.

How many types of binding are there in WCF?

You can define bindings in two ways: through code or through configuration. These two approaches do not depend on whether you are using a system-provided binding or a custom binding.

What are the types of binding in WCF?

Various Types of Bindings WCF Supports

  • Basic binding. This binding is provided by the BasicHttpBinding class.
  • Web binding. This binding is provided by the WebHttpBinding class.
  • Web Service (WS) binding.
  • TCP binding.
  • IPC binding.
  • MSMQ binding.
  • Federated WS binding.
  • Peer Network binding.