My application is using CSVHelper libraries of very old version 2.7.1. Now I want to upgrade to the latest version of CSVHelper version 30. I have installed using the NuGet package manager. When I build my application, it throws errors. Below is the old code that throws an error.

 csvReader.Configuration.HasHeaderRecord = hasHeaderRecord;
    csvReader.Configuration.IgnoreBlankLines = false;
    csvReader.Configuration.IgnoreReadingExceptions = true;
    csvReader.Configuration.WillThrowOnMissingField = false;
    csvReader.Configuration.TrimFields = true;
    csvReader.Configuration.ReadingExceptionCallback =

One more error about The type or namespace name 'ICsvReader' could not be found (are you missing a using directive or an assembly reference?)

Can anyone suggest how to fix these upgradation issues?

CodePudding user response：

Configuration must be passed in to the CsvReader constructor. The constructor also now requires either CultureInfo or IReaderConfiguration to be passed in with the TextReader.

void Main()
{
    var config = new CsvConfiguration(CultureInfo.InvariantCulture)
    {
        IgnoreBlankLines = false,
        ReadingExceptionOccurred = args => { Console.WriteLine(args.Exception.ToString()); return false;},
        MissingFieldFound = null,
        TrimOptions = TrimOptions.Trim
    };
    
    using (var reader = new StringReader("Id,Name\n1\n2,name2\nthree,name3\n4,name4"))
    using (var csv = new CsvReader(reader, config))
    {
        var records = csv.GetRecords<Foo>().Dump();
    }
}

public class Foo
{
    public int Id { get; set; }
    public string Name { get; set; }
}