2.2.17. ADO Property object

发布时间 : 2025-10-25 13:35:20 UTC      

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Property object

Built-in properties are those that are implemented in ADO and immediately available to any new object, using the MyObject.Property grammar. They will not act as Property object appears in the object’s `` Properties``collection, so although you can change their values, you cannot change their properties.

ADO Property objects represent the dynamic properties of ADO objects, which are defined by the provider defined.

Everyone who talks to ADO provider have different ways to interact with ADO. Therefore, ADO needs to store information about provider in some way. The solution is provider provide specific information (dynamic properties) for ADO. ADO put each provider property is stored in a Property object, while the Property object is also stored in the Properties in the assembly. This collection will be assigned to the Command object, Connection object, Field object or Recordset object.

For example, a property assigned to a provider might indicate Recordset``object supports transactions or updates. These additional properties will be used as ``Property object appears in the Recordset object’s Properties in the assembly.

ProgID

set objProperty=Server.CreateObject("ADODB.property")

Attribute

Attribute

Description

Attributes

Returns the properties of a Property object

Name

Sets or returns the name of a Property object

Type

Returns the type of Property

Value

Sets or returns the value of a Property object

Principles, Technologies, and Methods of Geographic Information Systems

 102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.