QuickOPC User's Guide and Reference
DAVtq Class Members
Properties  Methods 


View with Navigation Tools
OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace : DAVtq Class

The following tables list the members exposed by DAVtq.

Public Constructors
 NameDescription
Public ConstructorOverloaded. Initializes a new instance of the class.  
Top
Public Properties
 NameDescription
Public Propertystatic (Shared in Visual Basic)Default quality.  
Public Propertystatic (Shared in Visual Basic)Default timestamp. In UTC.  
Public Propertystatic (Shared in Visual Basic)Default timestamp. In local time.  
Public PropertyDetermines whether there is a (non-default) timestamp in the VTQ.  
Public PropertyReturns whether the Value contains valid data.  
Public Propertystatic (Shared in Visual Basic)A null value-timestamp-quality.  
Public PropertyGets or sets the quality.  
Public PropertyStatus information.  
Public PropertyGets or sets the timestamp. In UTC.  
Public PropertyGets or sets the timestamp. In UTC, as double-precision floating-point number that contains an OLE Automation date.  
Public PropertyGets or sets the timestamp. In local time.  
Public PropertyGets or sets the timestamp. In local time, as double-precision floating-point number that contains an OLE Automation date.  
Public PropertyGets or sets the data value.  
Public PropertyReturns the type of the Value, or null if there is no value.  
Top
Public Methods
 NameDescription
Public MethodOverridden.   
Public MethodFormats the data value for display.  
Public MethodOverloaded. Overridden. Determines whether the specified object is equal to the current object.Determines whether the specified System.Object is equal to the current 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 Method (Inherited from OpcLabs.BaseLib.Info)
Public MethodSets the data value.  
Public MethodOverloaded. Overridden. Returns a string that represents the current object.Returns a string that represents the current object.  
Public Method (Inherited from OpcLabs.BaseLib.Info)
Top
Protected Methods
 NameDescription
Protected MethodInfrastructure.  
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 MethodDetermines whether HasTimestamp value is evident.  
Protected MethodDetermines whether Timestamp value is evident.  
Protected MethodDetermines whether TimestampLocal value is evident.  
Protected MethodOverridden. Infrastructure. Infrastructure.  
Top
Public Operators
Determines whether the two objects are equal.
Determines whether the two objects are not equal.
Top
See Also

Reference

DAVtq Class
OpcLabs.EasyOpc.DataAccess Namespace