2. By learning C#, master some framework class libraries. For example, Operation Io, ADO.NET Five and so on.
3. Learn javascript, then jQuery and ajax.
4.sql must be learned and mastered. Background operations are nothing more than adding, deleting and changing queries, among which queries are widely used, and joint queries and aggregate functions should be known.
5. If you don't do front-end development, you only know css, at least know how to call it and understand the meaning.
6. Learn the development of some reports, such as Crystal Report and Microsoft ReportView, which are all similar.
7. At this point, you can't manually bind the control to the statement in the page. Now you should be familiar with some frameworks, such as linq, Entity Framework and nhibernate.
8. Learn network services.
9. Learn design patterns, such as factory pattern, monomer pattern, adapter pattern, observer pattern and so on.
That's about it. When you know this, you will find that you have made a lot of progress and have a lot of knowledge to learn. You know what to learn.