/// <summary>
/// Creates a new CsvDataReader asynchronously.
/// </summary>
/// <param name="reader">The TextReader for the delimited data.</param>
/// <param name="options">The options to configure the reader, or null to use the default options.</param>
/// <returns>A task representing the asynchronous creation of a CsvDataReader instance.</returns>
public static async Task <CsvDataReader> CreateAsync(TextReader reader, CsvDataReaderOptions?options = null)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
var csv = new CsvDataReader(reader, options);
await csv.InitializeAsync(options?.Schema);
return(csv);
}
/// <summary>
/// Creates a new CsvDataReader asynchronously.
/// </summary>
/// <param name="filename">The name of a file containing CSV data.</param>
/// <param name="options">The options to configure the reader, or null to use the default options.</param>
/// <returns>A task representing the asynchronous creation of a CsvDataReader instance.</returns>
public static async Task <CsvDataReader> CreateAsync(string filename, CsvDataReaderOptions?options = null)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
// TextReader must be owned when we open it.
if (options?.OwnsReader == false)
{
throw new CsvConfigurationException();
}
var reader = File.OpenText(filename);
var csv = new CsvDataReader(reader, options);
await csv.InitializeAsync(options?.Schema);
return(csv);
}
