System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);

Por favor, hágamelo saber si necesita una talla intermedia y haremos todo lo posible para encontrarle el ajuste perfecto.

The line below tells the watcher that it has to keep looking at the path entered in the txtFile textBox. The '\' characters at the end are to make sure that the path has a directory name. Orelse there will be a problem in case the user enters something like "C:" in the text box.

build

Anyway... rather than add a field of type "int?" to the DataTable, I needed to add a field of type "int" as a column. Sounded simple... sort of... A fair bit of Googling and pulling together ideas from a couple of different blog posts led me to the following code.

objbulk.ColumnMappings.Add("ID", "ID");   
objbulk.ColumnMappings.Add("isDeleted", "isDeleted");  
objbulk.ColumnMappings.Add("Manual", "Manual");  
objbulk.ColumnMappings.Add("source", "source");