QuickOPC User's Guide and Reference
DAPropertyDescriptor Class Members
Fields  Properties  Methods  Events


OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess Namespace : DAPropertyDescriptor Class

The following tables list the members exposed by DAPropertyDescriptor.

Public Constructors
 NameDescription
Public ConstructorOverloaded.   
Top
Public Fields
 NameDescription
Public FieldDefault DAPropertyDescriptor, expressed as string.  
Public FieldDefault namespace, used when the qualified name is given as a string but does not specify a namespace.  
Public FieldDefault property Id. Equals to DAPropertyIds.Null.  
Public FieldDefault string form of the qualified name. An empty string.  
Top
Public Properties
 NameDescription
Public Propertystatic (Shared in Visual Basic)Item Access Rights.

Remarks:

(OPC_PROPERTY_ACCESS_RIGHTS)

 
Public Propertystatic (Shared in Visual Basic)Alarm Area List.

Remarks:

(OPC_PROPERTY_ALARM_AREA_LIST)

 
Public Propertystatic (Shared in Visual Basic)Alarm Quick Help.

Remarks:

(OPC_PROPERTY_ALARM_QUICK_HELP)

 
Public Propertystatic (Shared in Visual Basic)Rate of Change Limit.

Remarks:

(OPC_PROPERTY_CHANGE_RATE_LIMIT)

 
Public Propertystatic (Shared in Visual Basic)Contact Close Label.

Remarks:

(OPC_PROPERTY_CLOSE_LABEL)

 
Public Propertystatic (Shared in Visual Basic)Condition Logic.

Remarks:

(OPC_PROPERTY_CONDITION_LOGIC)

 
Public Propertystatic (Shared in Visual Basic)Condition Status.

Remarks:

(OPC_PROPERTY_CONDITION_STATUS)

 
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_TYPE_DESCRIPTION).  
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_DATA_FILTER_VALUE).  
Public Propertystatic (Shared in Visual Basic)Item Canonical DataType.

Remarks:

(OPC_PROPERTY_DATATYPE)

 
Public Propertystatic (Shared in Visual Basic)Deadband.

Remarks:

(OPC_PROPERTY_DEADBAND)

 
Public Propertystatic (Shared in Visual Basic)Default qualified name (used with OPC XML-DA). Empty.  
Public Propertystatic (Shared in Visual Basic)Item Description.

Remarks:

(OPC_PROPERTY_DESCRIPTION)

 
Public Propertystatic (Shared in Visual Basic)Deviation Limit.

Remarks:

(OPC_PROPERTY_DEVIATION_LIMIT)

 
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_DICTIONARY).  
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_DICTIONARY_ID).  
Public Propertystatic (Shared in Visual Basic)Item EUInfo.

Remarks:

(OPC_PROPERTY_EU_INFO)

 
Public Propertystatic (Shared in Visual Basic)Item EU Type.

Remarks:

(OPC_PROPERTY_EU_TYPE)

 
Public Propertystatic (Shared in Visual Basic)EU Units.

Remarks:

(OPC_PROPERTY_EU_UNITS)

 
Public Propertystatic (Shared in Visual Basic)High EU.

Remarks:

(OPC_PROPERTY_HIGH_EU)

 
Public Propertystatic (Shared in Visual Basic)HiHi Limit.

Remarks:

(OPC_PROPERTY_HIHI_LIMIT)

 
Public Propertystatic (Shared in Visual Basic)High Instrument Range.

Remarks:

(OPC_PROPERTY_HIGH_IR)

 
Public Propertystatic (Shared in Visual Basic)Hi Limit.

Remarks:

(OPC_PROPERTY_HI_LIMIT)

 
Public PropertyDetermines whether the property descriptor is null, i.e. specifies neither property ID.  
Public Propertystatic (Shared in Visual Basic)Limit Exceeded.

Remarks:

(OPC_PROPERTY_LIMIT_EXCEEDED)

 
Public Propertystatic (Shared in Visual Basic)Low EU.

Remarks:

(OPC_PROPERTY_LOW_EU)

 
Public Propertystatic (Shared in Visual Basic)Low Instrument Range.

Remarks:

(OPC_PROPERTY_LOW_IR)

 
Public Propertystatic (Shared in Visual Basic)Lo Limit.

Remarks:

(OPC_PROPERTY_LO_LIMIT)

 
Public Propertystatic (Shared in Visual Basic)LoLo Limit.

Remarks:

(OPC_PROPERTY_LOLO_LIMIT)

 
Public Propertystatic (Shared in Visual Basic)Maximum Value.

Remarks:

OPC XML-DA Specification Version 1.01.

 
Public Propertystatic (Shared in Visual Basic)Minimum Value.

Remarks:

OPC XML-DA Specification Version 1.01.

 
Public Propertystatic (Shared in Visual Basic)A null property descriptor.  
Public Propertystatic (Shared in Visual Basic)Contact Open Label.

Remarks:

(OPC_PROPERTY_OPEN_LABEL)

 
Public Propertystatic (Shared in Visual Basic)Primary Alarm Area.

Remarks:

(OPC_PROPERTY_PRIMARY_ALARM_AREA)

 
Public PropertyThe Property ID of the OPC property.  
Public PropertyThe qualified name for this property (used with OPC XML-DA).  
Public PropertyThe string form of the qualified name for this property (used with OPC XML-DA).  
Public Propertystatic (Shared in Visual Basic)Item Quality.

Remarks:

(OPC_PROPERTY_QUALITY)

 
Public Propertystatic (Shared in Visual Basic)Server Scan Rate.

Remarks:

(OPC_PROPERTY_SCAN_RATE)

 
Public Propertystatic (Shared in Visual Basic)Sound File.

Remarks:

(OPC_PROPERTY_SOUND_FILE)

 
Public Propertystatic (Shared in Visual Basic)Item Timestamp.

Remarks:

(OPC_PROPERTY_TIMESTAMP)

 
Public Propertystatic (Shared in Visual Basic)Item Timezone.

Remarks:

(OPC_PROPERTY_TIMEZONE)

 
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_TYPE_DESCRIPTION).  
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_TYPE_ID).  
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_TYPE_SYSTEM_ID).  
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_UNCONVERTED_ITEM_ID).  
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_UNFILTERED_ITEM_ID).  
Public Propertystatic (Shared in Visual Basic)Item Value.

Remarks:

(OPC_PROPERTY_VALUE)

 
Public Propertystatic (Shared in Visual Basic)Value Precision.

Remarks:

OPC XML-DA Specification Version 1.01.

 
Public Propertystatic (Shared in Visual Basic)(OPC_PROPERTY_WRITE_BEHAVIOR).  
Top
Public Methods
 NameDescription
Public MethodOverridden.   
Public MethodOverloaded. Determines whether the specified DAPropertyDescriptor is equal to the current object.  
Public Methodstatic (Shared in Visual Basic)Converts a property element to a DAPropertyDescriptor object.  
Public Methodstatic (Shared in Visual Basic)Converts a property Id to a DAPropertyDescriptor object.  
Public Methodstatic (Shared in Visual Basic)Converts an enumerated property Id to a DAPropertyDescriptor object.  
Public Methodstatic (Shared in Visual Basic)Converts a numerical property Id value to a DAPropertyDescriptor object.  
Public Methodstatic (Shared in Visual Basic)Converts a qualified name or a property Id as a string to a DAPropertyDescriptor object.  
Public Methodstatic (Shared in Visual Basic)Converts a qualified name to a DAPropertyDescriptor object.  
Public MethodOverridden. Serves as the default hash function. Serves as a hash function for a particular type.  
Public MethodOverridden.   
Public Method (Inherited from OpcLabs.BaseLib.Info)
Public MethodGets the System.Type of the current instance. (Inherited from object)
Public MethodInfrastructure.  
Public Methodstatic (Shared in Visual Basic)Parses a string representing a XML qualified name of OPC-DA property (used with OPC XML).  
Public Method  
Public Method (Inherited from OpcLabs.BaseLib.Info)
Public MethodOverridden. Returns a string that represents the current object.Returns a string that represents the current object.Returns a string describing the contents of the property descriptor.  
Public Method  
Public Method (Inherited from OpcLabs.BaseLib.Info)
Top
Protected Methods
 NameDescription
Protected MethodAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from object)
Protected MethodCreates a shallow copy of the current System.Object. (Inherited from object)
Protected MethodOverridden. Infrastructure. Infrastructure.  
Protected MethodOverridden. Infrastructure. Infrastructure.  
Top
Public Events
 NameDescription
Public EventThis event is raised when a property is changed on a component.  
Top
Public Operators
Determines whether the two objects are equal.
Overloaded. Converts a property element to a DAPropertyDescriptor object.
Determines whether the two objects are not equal.
Top
See Also

Reference

DAPropertyDescriptor Class
OpcLabs.EasyOpc.DataAccess Namespace