The intent of this control user property is to allow a Siebel developer to prevent users (and the Siebel query engine) from sorting on nonindexed data. If its value is TRUE, all sorting capabilities on a particular field or list column are disabled. The sort icons and tool tip do not appear in the list column header, and the field is not displayed in the Advanced Sort window. If its value is FALSE or not specified, sorting is enabled by the control.
For example, if the [Name] list column has the DisableSort user property set to TRUE, the sort icons and (Sortable) tool tip do not appear in the [Name] list column, and the [Name] field is not displayed in the 'Advanced Sort' window. If a user attempts to perform a sort on the [Name] field, an error message displays.
See also DisableSort (Field User Property).
You can inactivate and modify the values for this user property, and you can create a new instance of this user property if it is not already defined on the control.