Printing and printing management system v1.0

Introduction to printing and printing management system functions:
1. Presentation layer (UI): In layman’s terms, it is the interface displayed to the user, that is, what the user sees and gains when using a system.
2. Business logic layer (BLL): operations for specific problems, which can also be said to be operations on the data layer and business logic processing of data.
3. Data Access Layer (DAL): The transactions performed by this layer directly operate the database, for adding, deleting, modifying, searching, etc. of data.

Technical features:
1. dotnetbar beautifies the interface
2. Three-tier architecture, clear levels, easy to maintain
3. Export excel data flow, create a form class, and abbreviate the code
4. Specially designed for printing management of printing companies
5. Query, fuzzy precise multi-condition query.

Notice:
The system is divided into administrator and ordinary user roles. The printing management of administrators is the same as that of ordinary users. The difference is that administrators can add, modify, query, and delete users. Ordinary users can only change their login password.
Administrator role, login name: admin Password: admin permissions: Administrator Ordinary user, login name: lisi, password: lisi Permissions: ordinary users.
The development environment is Visual Studio 2010, the database is SQL Server 2008, and the database file can be attached to the DB folder.