The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 4: FILESTREAM with Entity Framework and LINQ to SQLAdding a row to the tableWe will create a new method in the Program.cs file to insert a new item in the database.The code for this method is shown in Listing 4-8. This code will go in the Program class.static int InsertItem(){Item NewItem = new Item();NewItem.ItemNumber = "IT002";NewItem.ItemGuid = System.Guid.NewGuid();Console.WriteLine("New Item GUID: {0}",NewItem.ItemGuid.ToString());NewItem.ItemDescription = "Microsoft Mouse";using (NorthPoleEntities e = new NorthPoleEntities()){bool OpenedConn = false;if (e.Connection.State != System.Data.ConnectionState.Open){e.Connection.Open();OpenedConn = true;}try{// Start a transaction explicitly to ensure adding the row and// creating the BLOB are part of the same transaction// System.Transactions.TransactionScope can be used if requiredusing (System.Data.Common.DbTransaction tran =e.Connection.BeginTransaction()){e.Items.AddObject(NewItem);// Because this uses a stored procedure (instead of// generated T-SQL)// this will create a FILESTREAM data file// If adding records using a stored proc is not desired,// then this can be set as a DEFAULTe.SaveChanges();152