2011

Table Of Contents
receive an auto-generated, unique identifier. If you do not specify an
auto-generated integer for this property, you must manually enter a unique
identifier for each new feature that uses it.
Specify Unique Constraint(s) And The Order
Specify the criteria features must meet in order to be added to this feature
class. Enter a constraint for this feature class in the Constraints box and
click New to apply it. Create additional constraints if necessary. Use the
arrow buttons to reorder the constraints. To remove a constraint, select it
and click Delete. This setting is available only if the provider supports
constraints. Constraint syntax is provider-specific.
Locking
Specify whether the user who checks out a feature controls that feature to
the exclusion of other users, until it is checked back in. This setting applies
only to providers that support locking.
Long Transaction
Specify whether to enable long transactions. A long transaction groups
conditional changes to one or many features. Long transactions create
different versions of a feature or set of features. This setting applies only to
providers that support versioning.
Property settings
Name
Enter the name of the property that will appear in the Schema tree. It must
follow the naming rules of the provider.
Each property is a single attribute of a feature class. For example, a Road
feature class may have properties called Name, DateConstructed, and
Location.
Type
Select Data for non-spatial data. Select Geometry for a property that defines
an objects shape.
A Data property data type is either boolean, byte, date/time, decimal, single,
double, Int16, Int32, Int64, or string. For example, a Road feature can have
a data property called DateConstructed whose data type is date/time.
The default Geometry property specifies one of four shapes: point (0
dimensions), curve/line (1 dimension), surface/polygon (2 dimensions),
and solid (3 dimensions). A feature class has one main geometry property,
but can have additional geometry properties. A geometry property is
associated with a spatial context. All instances of a geometric property must
have the same ordinate dimension. Not all providers support all geometry
types or all dimensionalities; SHP supports only XY points, for example,
1742 | Chapter 26 Managing Data Dialog Boxes