Introduction - If you have any usage issues, please Google them yourself
This is a directory procedures, the establishment of a directory database, operational procedures, the data is read into memory, the data can delete/modify/add operations. The database is posed by the structure of the List. the question is : implementation delete operation point out the problem. my memory of data operations are normal. inside there is a ShowAll () function can display the data after the operation. I have deleted a node, reflect the deletion of success. then withdraw from the process, from pre-Save () function. data archiving. next opened, read data normal, with ShowAll () function to the correct data of the last operation, if the time for adding or withdrawing from, on the problem. specific problems you can engage in the implementation of procedures for compiling data