/// <summary>
/// Reads a field, as a list of integers.
/// </summary>
/// <param name="key">The column</param>
/// <returns>The value</returns>
/// <exception cref="InvalidCastException"></exception>
public IReadOnlyList <int> GetIntList(string key)
{
string value = GetValue(key);
if (string.IsNullOrEmpty(value))
{
return(null);
}
string[] parts = GetList(value);
List <int> res = new List <int>(parts.Length);
foreach (string part in parts)
{
int entry;
if (CsvValueParser.TryParseInt(part, out entry))
{
res.Add(entry);
}
else
{
throw new InvalidCastException( );
}
}
return(res);
}
/// <summary>
/// Reads a field, as an integer.
/// </summary>
/// <param name="key">The column</param>
/// <returns>The value</returns>
/// <exception cref="InvalidCastException"></exception>
public int?GetInt(string key)
{
string value = GetValue(key);
if (string.IsNullOrEmpty(value))
{
return(null);
}
int result;
if (!CsvValueParser.TryParseInt(value, out result))
{
throw new InvalidCastException( );
}
return(result);
}