What are the best practices for Private Member Instantiation/Initialization? [duplicate]

Answer 1

I prefer the second and in some cases it depends on your coding standards. But consider the processing sequence:

target class field initialization -> base class field initialization -> base class constructor -> target class constructor

if the base class or target class has an exception creating the object and the fields are preinitialized it will have a value at finalization and may cause some unexpected problems.

See also this blog by Bill Simser Best Practices and Member Initialization in C#