Map of the names of fields on a data row and the corrosponding sort direction;
Set the value of a key to undefined to let value of ISettingsdefaultSort apply
Map of the names of fields on a data row and the corrosponding sort direction;
Set the value of a key to undefined to let value of ISettingsdefaultSort apply
Map of the names of fields on a data row and the corrosponding sort direction; Set the value of a key to undefined to let value of ISettings
defaultSort
apply