... cations on that duplicated project, in Visual C# .NET, this duplication is not as easy as that in Visual Basic. NET. The main issue is that in Visual C# .NET, the namespace is widely used to provide ... and we will fi x them in the next section. 6.2.4 Duplicate Visual C #. NET Projects with Installed D ata S et Unlike Visual Basic. NET projects, in which one can create a new project by duplicating ... do with adding a new record into a data table in the database. The data tables in the DataSet are only mappings of those real data tables in the database. To add this new record into the database, ...