| Attribute | Description | Required |
|---|
| language | The language to generate collection classes for. Valid values are "CSharp" or "VB." | True |
| file | The name of the template file for collection generation. This is provided as an alternative to using the task's fileset. | False |
| failonerror | Determines whether task failure stops the build or is just reported. Default is "true." | False |
| verbose | Task reports detailed build log messages. Default is "false." | False |
| if | If true then the task will be executed; otherwise skipped. Default is "true." | False |
| unless | Opposite of if. If false then the task will be executed; otherwise skipped. Default is "false." | False |