[]
Gets or sets the data option of the sort field.
public SortDataOption DataOption { get; set; }
Public Property DataOption As SortDataOption
IValueSortField sortField = new ValueSortField(worksheet.Range["A2:A5"], SortOrder.Ascending);
sortField.DataOption = SortDataOption.TextAsNumbers;
SortDataOption dataOption = sortField.DataOption;