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


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

The following tables list the members exposed by DAPropertyDescriptor.

Public Constructors
 NameDescription
Public ConstructorOverloaded.   
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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.  
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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).  
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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.   
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 an 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 describing the contents of the property descriptor.  
Public Method  
Public Method (Inherited from OpcLabs.BaseLib.Info)
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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.  
Protected MethodOverridden. Infrastructure.  
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Extension Methods
 NameDescription
Public Extension MethodSets the arbitrary object associated with the node.
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Public Events
 NameDescription
Public EventThis event is raised when a property is changed on a component.  
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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.
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See Also

Reference

DAPropertyDescriptor Class
OpcLabs.EasyOpc.DataAccess Namespace