基类库
1. ACLChange文件访问控制
2.Compression文件压缩
3.Console 控制台
4.DriveInfo 驱动信息
5.FTP
6.GenericsSample图形示例
7.network
8.RegularExpressions
9.Stopwatch  (The System.Diagnostics now includes a stopwatch that can be used for timing operations适时操作)
10.Transactions 事务
数据访问
1.Asynchronous Queries 异步查询
2.Attaching(附加) a database with your application(connect to a database using a file name )
3.Creating and using User Defined Types with SQL Server 2005
4.DataReader vs. DataSet comparision
5.DataSet and DataTable Enhancements(增进)
6.Performing Batch Updates and Data Paging(批量更新,数据分页)
7.Performing Bulk Updates(海量数据更新)
8.Reading and Writing Images from a Database
9.Using Factory Classes
10.Using Managed Stored Procedures and User Defined Functions with SQL Server 2005
11.Using Multiple Active Result Sets with SQL Server 2005(多数据集)
12.Using Notifications(提示) with SQL Server 2005
13.Using the XML data type with SQL Server 2005
14.XPath and XSLT Transformations(转化) Enhancements
web开发
1.Caching
2.DataAccess
3.DataControls
4.MasterPages(母板页)
5.Membership
6.MenuAndSiteMapPath
7.Profiles(add personalization to your web sites, for both anonymous and logged in users)
8.Security
9.TreeView
10.WebParts
winform开发
1.AsynchronousTasks(异步任务)
2.ClientConfiguration
3.CreatingMasterDetails(This sample demonstrates three ways to create a master-details view. A master-details view is a common user interface paradigm in which two sets of data are displayed. A master-details relationship (also known as a parent-child relationship) exists between these two sets of data, and it is sometimes desirable to display only those details data records that are related to the selected master record)
4.PlayingSounds
5.UsingBindingNavigator
6.UsingBindingSource
7.UsingClickOnce
8.UsingDataGridView
9.UsingLayoutPanels
10.UsingMaskedTextBox(The MaskedTextBox is a new .NET Framework Windows Forms control similar to the MaskedEdit control of Microsoft Visual Basic 6.0)
11.UsingMenusStatusStripsToolStrips
12.UsingSplitContainer
13.UsingWebBrowser