Based PIE.NET-SDK secondary development plug-in documentation notes:
PIE plug-in developers profiles : 
it contains the following line:
Understanding line 'Item' Relations -> library: the plugin class name ( assembly name suffix + ), i.e. PIE.AlgoUI.dll (+ assembly name suffix) 
(corresponding to the VS)
identity: unique identifier, the format library name (namespace) + class name (corresponding to the command name of the object), such as: PIE.ControlsTest.VectorCommand , find the class through a namespace assemblies ( find the corresponding identity code by command control)
After piesdk codes learning and online training, get exercise, deep experience :
1. To a bunch of C # code can seek, how to make it coherent ideas to make it run
2. Develop their own writing code and more. Teachers have found the same to achieve different code to achieve so much, when will implement a number of ways, one way to achieve it is to choose when to use, more flexible, broader ideas. Is not realized will be used, really understand what counts (after hastily realize no matter if or not write back.).
3. "everything is an object", the algorithm code 'objects' operation, the object (packaged attributive) simplifies the presentation and operations, sometimes a few object or objects, but the English expression longish C #, each object operating conversion, assignment, and then put together reason clearly needed.
4. The road is very long, very short legs, in any case, at the foot of the road, thanks to the meeting and forward.
5. Reviewing the Old, hard-working people will never be eliminated, remember, do not worry too much, to do the things he can do! All your efforts will not immediately give you everything you want, but you can make that kind of becoming the person you want to be! Has been forward-looking, future-oriented, concerned that strength.
