Therefore API > API Reference > Classes > TheFieldList > Methods
Contains
Checks if the list contains a specified field number.
Name
Description
Contains (TheCategoryField)
Gets the field number from the specified TheCategoryField and checks whether it is in the list.
Contains (int)
Checks if the specified field number is in the list.
Contains (string)
Looks up the field number for the specified field ID and checks whether it is in the list.
Please check the help pages of the various overloads for the exact syntax in Visual Basic and C#.