OPC Studio User's Guide and Reference
DAClientMapperExtension Class Methods


OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping.Extensions Namespace : DAClientMapperExtension Class

For a list of all members of this type, see DAClientMapperExtension members.

Public Methods
 NameDescription
Public Method (Inherited from object)
Public MethodServes as the default hash function. (Inherited from object)
Public Methodstatic (Shared in Visual Basic)Overloaded. Executes the "Get" operation on members of given target object.The "Get" operation obtains value of an OPC property and stores it into the mapping source. Only mappings of type OpcLabs.EasyOpc.DataAccess.LiveMapping.DAPropertyMapping are affected; other mappings are ignored.  
Public MethodGets the System.Type of the current instance. (Inherited from object)
Public Methodstatic (Shared in Visual Basic)Overloaded. Executes the "Read" operation on members of given target object.The "Read" operation reads a value of an OPC item and stores it into the mapping source. Only mappings of type OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMapping that include OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMappingOperations.Read in their OpcLabs.EasyOpc.DataAccess.LiveMapping.DAClientItemMapping.Operations are affected; other mappings are ignored.  
Public Methodstatic (Shared in Visual Basic)Overloaded. Executes the "Subscribe" operation on members of given target object.The "Subscribe" operation subscribes to or unsubscribes from changes of an OPC item. Only mappings of type OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMapping that include OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMappingOperations.Subscribe in their OpcLabs.EasyOpc.DataAccess.LiveMapping.DAClientItemMapping.Operations are affected; other mappings are ignored.  
Public MethodReturns a string that represents the current object. (Inherited from object)
Public Methodstatic (Shared in Visual Basic)Overloaded. Executes the "Write" operation on members of given target object.The "Write" operation writes a value from the mapping source into an OPC item. Only mappings of type OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMapping that include OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMappingOperations.Write in their OpcLabs.EasyOpc.DataAccess.LiveMapping.DAClientItemMapping.Operations are affected; other mappings are ignored.  
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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)
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See Also

Reference

DAClientMapperExtension Class
OpcLabs.EasyOpc.DataAccess.LiveMapping.Extensions Namespace