Some small issues with synchronous asynchronous calls

As the project first truly touches, it uses both synchronous and asynchronous. Record a few personal bright:

. NET now offers a handy feature: async, await.

1. The method that is identified for async is an async method, and the return value of the class method can only be void or task<t>. (e.g.:task<bool> pingasync ();)

2. When the return value of the Async method needs to be obtained, it must be marked with an await at the call: it can be understood to wait for the return value of the Async method. (such as: var result = await _serverfacade.pingasync ();)

3. The method must also be an async method if the await is indicated internally.

Then, there is always a synchronization method on the top level, right? How to deal with it?

1. Asynccommand, you can bind an async method to the command

2. Async methods. Result (for example: var result = _serverfacade.pingasync (). Result;)

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For configureawait (BOOL)

Some small issues with synchronous asynchronous calls