/// <summary>
/// Gets the value in the specified column, or <see langword="null"/> if the value does not exist.
/// </summary>
/// <param name="column">
/// The column name.
/// </param>
/// <returns>
/// The value, or <see langword="null"/> if the value does not exist for this record.
/// </returns>
public string GetValueOrNull(string column)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
return(GetValueOrNull(_headerRecord.IndexOf(column)));
}
/// <summary>
/// Gets the value in the specified column, or <see langword="null"/> if the value does not exist.
/// </summary>
/// <param name="column">
/// The column name.
/// </param>
/// <returns>
/// The value, or <see langword="null"/> if the value does not exist for this record.
/// </returns>
public string GetValueOrNull(string column)
{
column.AssertNotNull("column");
_exceptionHelper.ResolveAndThrowIf(_headerRecord == null, "no-header-record");
return(GetValueOrNull(_headerRecord.IndexOf(column)));
}