Should I be using table adapters?
I am working on a personal project as a way of learning more about C# and .NET, specifically creating an application that utilises a database (MS SQL Server 2008 in my c开发者_如何转开发ase). Whilst I appreciate there isn't always a definitive "right" way of doing things, given the choice between using an old technology/idea or a new one, I would rather use the new one. For example, one of my aims for this project is to learn, or at least familiarise myself with, WPF rather than using WinForms as I have done in the past.
On that basis, I've been muddling around without a great deal of direction with regards to saving data to my database and retrieving it. So far I've managed to get both those working using TableAdapters
but I feel like they are the "old" way of working (my basis for this is that they are listed under Visual Studio 2005 on MSDN). Firstly, am I correct in this assumption? If so, what are the newer methods of saving and retrieving data from a database? I would be grateful of any pros and cons each method offers.
I've Googled and searched MSDN extensively but I don't feel like I am using the correct search terms as I have only succeeded in confusing myself.
I have .NET 3.5, Visual Studio 2008 and Microsoft SQL Server 2008 at my disposal.
Any guidance would be much appreciated.
I would agree that TableAdapters, DataSets, DataTables, etc. are the "old" way of doing things.
The "new" way would be Linq-to-SQL, Entity Framework or NHibernate.
Personally, I like to use a combination of Linq-to-SQL along with plain old DBConnection
s, DataReader
s and DTO's where needed.
If you would like a newer way of doing Database access in .NET, I would recommend looking into LINQ to SQL or the Entity Framework.
There are many many many different ways to retrieve data from SQL Server 2008 using .Net.
Table Adapters are not a bad way; they are core to the .Net Framework, easy to get started with and reasonably powerful, although they do not perform quite as well as other options and often require more memory.
Basically Table adapters are good if your data is structured the way you want to view it. If you want to view data in a different way to it is stored you can do this with a table adapter but you loose the ability to write back changes to the database, this is OK if you are just generating a report. If you want to view and change the data and the data is not in the structure you want to view it you need entity framework so you can query the data to get it into a different format and still have the ability to write any changes back. This is what the call the data from the server the MV to the display the VM
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