property Column.SortType as SortTypeEnum
Returns or sets a value that indicates the way a control sorts the values for a column.

TypeDescription
SortTypeEnum A SortTypeEnum expression that determines the sorting type.
By default, the SortType property is determined by the type of the column being loaded. Use the SortOrder property to specify the default sorting order of the pivot column. For instance, if data is loaded using the DataSource, the Type of the Column/Field determines the sorting type. Based on the SortType property, the control displays the associated filtering box. Use the DisplayFilterList property to specify whether the column's header displays a drop down filter button. You can use the FilterBarPromptVisible property to show or hide the control's filter prompt field. Based on the column's SortType property, the aggregate functions displays the associated columns as shown in the following screen shot:

The following screen shot shows the filtering box, if the SortType property is SortString:

The following screen shot shows the filtering box, if the SortType property is SortDate: