Writing c# csv database software module

C sharp project including source code Develop a c# class to handle csv (; delimited with carriage return) based databases: Derive new class CsvDataTable from System.Data.DataTable. OPEN(string SqlString) Add method [login to view URL](string SqlString) (SqlString) is an object of [login to view URL] SqlString could adress one or more csv lists like: SqlString = “SELECT * FROM c:\directory\[login to view URL]” Or for more than one csv list: SqlString = “SELECT * FROM c:\directory\[login to view URL] AS TB1 INNER JOIN c:\directory\[login to view URL] AS TB2 ON TB2.Index=[login to view URL] WHERE Information=?;" After invoking DataTableFromCsv should contain the .NET DataTable data including column information. STORE() Add method [login to view URL]() Store all new data in DataTable to appropiate csv lists. Because storing could take some time it has to work in asynchonous own thread. DISPOSE() Add method [login to view URL] for storing and releasing. Test CsvDataTable cdt = new CsvDataTable(); [login to view URL](“SELECT * FROM c:\directory\[login to view URL] AS TB1 INNER JOIN c:\directory\[login to view URL] AS TB2 ON TB2.Index=[login to view URL] WHERE Information=?;"); Then want I to modify some data like: [login to view URL](3)(4)=¨XXX¨; [login to view URL](5)(2)=¨YYY¨; //Finally I want to store the whole table to c:\directory\[login to view URL] and/or c:\directory\[login to view URL] . [login to view URL]();