A System.Globalization.CultureInfo that contains data about the user's machine locale. The default is a null reference.
The DataSet.Locale property specifies the locale for which sorting applies.
By default, setting the DataSet.Locale for a System.Data.DataSet also sets the DataSet.Locale for each System.Data.DataTable object in that DataSet to the same value.
In columns that contain expressions, the StringComparison.InvariantCulture is used. The StringComparison.CurrentCulture is ignored.