Gets or sets a collection containing the available usage types. Valid usage types are defined in DTSFileConnectionUsageType.
Assembly : Microsoft.SqlServer.Dts.Design (en Microsoft.SqlServer.Dts.Design.dll)
An empty collection implies that all usage types are supported.
The usage types are currently Create file, Existing file, Create folder, and Existing folder. The collection contains only those types that are valid for the connection. For example, in the FTP task, if the operation is to send files using FTP, then the local path can only be Existing file, as you can only transfer existing files.