By default, the SortBarColumnsCount property is 0. The SortBarColumnsCount property counts the columns being shown in the sort bar. The SortBarColumn / SortBarColumnsCount properties can be used to enumerate the columns in the control's sort bar. Use the SortOrder property of the Column object on SortAscending / SortDescending to add a column to the sort bar, on SortNone to remove the column from the control's sort bar. Use the SortType property to determine the way how the column is sorted. Use the AllowSort property to avoid sorting a column when the user clicks the column. Use the SingleSort property to specify whether the control supports sorting by single or multiple columns. For instance, the SortBarColumnsCount counts the number of grouped columns, if the control's AllowGroupBy property is True.