Use the ExceptionDispatchInfo Class to Capture the Entire Exception

The ExceptionDispatchInfo class can be found in System.Runtime.ExceptionServices namespace and is used to capture an exception that occurs at a point, and it can be thrown later using the ExceotionDispatchInfo.Throw method.

See below for an example.

ExceptionDispatchInfo exceptionDispatchInfo = null;  
try 
{
     //code that throws error 
} 
catch (Exception ex) 
{     
     exceptionDispatchInfo = ExceptionDispatchInfo.Capture(ex); 
}

At a later point in time, you could use the Throw method to throw it, exceptionDispatchInfo.Throw();