PropertyInfo

A class that provides information about the fields in the layers and/or tables in the feature service.

Property	Type	Description
AliasName	string	The name of the corresponding field in feature class or table. It is provided so that users can use it in queries.
Domain	Domain	The domain on the field.
Editable	bool	If true the field can be edited, if false the field values cannot be edited.
EditableSpecified	bool	Indicates if Editable is specified.
IsNullable	bool	If true the field can have null values, if false the field cannot have null values.
IsNullableSpecified	bool	Indicates if IsNullable is specified.
Length	int	The maximum allowed length.
Name	string	The name in the layer or table. For a table, it is field's alias name.
Type	esriFieldType	The type of field.