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


OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace : DAItemAttribute Class

The following tables list the members exposed by DAItemAttribute.

Public Constructors
 NameDescription
Public ConstructorInitializes a new instance of the class with default data.  
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Public Fields
 NameDescription
Public FieldDefault access path. An empty string.  
Public FieldDefault canonical data type. Corresponds to OpcLabs.BaseLib.ComInterop.VarTypes.Empty.  
Public FieldDefault item mapping kind. Equals to DAItemMappingKind.Value.  
Public FieldDefault item mapping operations. Equals to DAItemMappingOperations.All.  
Public FieldDefault requested data type. Corresponds to OpcLabs.BaseLib.ComInterop.VarTypes.Empty.  
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Public Properties
 NameDescription
Public PropertyAn optional data path suggestion to the server.  
Public PropertySpecifies the canonical data type.  
Public Propertystatic (Shared in Visual Basic)Default type (of OPC item). Corresponds to a type of System.Object.  
Public PropertyThe type of OPC item.  
Public PropertySpecifies how the OPC Data Access item will be mapped.  
Public PropertyOPC-DA item mapping operations in which the attributed target should participate.  
Public PropertySpecifies the data type requested. Passing OpcLabs.BaseLib.ComInterop.VarTypes.Empty means that the server's canonical data type should be used.  
Public PropertyWhen implemented in a derived class, gets a unique identifier for this System.Attribute. (Inherited from System.Attribute)
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Public Methods
 NameDescription
Public MethodReturns a value that indicates whether this instance is equal to a specified object. (Inherited from System.Attribute)
Public MethodReturns the hash code for this instance. (Inherited from System.Attribute)
Public MethodGets the System.Type of the current instance. (Inherited from object)
Public MethodWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from System.Attribute)
Public MethodWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from System.Attribute)
Public MethodReturns a string that represents the current object. (Inherited from object)
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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

DAItemAttribute Class
OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace