constants FilterTypeEnum
Defines the type of filter applies to a column. The ColumnFilterType property defines the filter's type on specified column.

NameValueDescription
exAll0 No filter applied
exPattern1 Only items that match the pattern are included. The Filter property defines the pattern. A pattern may contain the wild card characters '?' for any single character, '*' for zero or more occurrences of any character, '#' for any digit character. If any of the *, ?, # or | characters are preceded by a \ ( escape character ) it masks the character itself.
exFilter240 Only the items that are in the ColumnFilter property are included.