The following tables list the members exposed by OPCItemDef.
Public Constructors
| Name | Description | |
|---|---|---|
 | OPCItemDef Constructor | Overloaded. |
Public Fields
| Name | Description | |
|---|---|---|
 | AccessPath | The access path the server should associate with this item. By convention a pointer to a NUL string specifies that the server should select the access path. Support for access path is optional. NOTE: version 1 indicated that a NULL pointer would allow the server to pick the path however passing a NULL pointer will cause a fault in the proxy/stub code and thus is not allowed. |
| Active | This Boolean value affects the behavior various methods. |
| Blob | A Blob associated with this item. |
| HandleClient | The handle the client wishes to associate with the item. See the OPCHANDLE for more specific information about the contents of this field. |
| ItemID | A string that uniquely identifies the OPC data item. See the Item ID discussion and the AddItems function for specific information about the contents of this field. |
| RequestedDataType | The data type requested by the client. An error is returned (See Additems or ValidateItems) if the server cannot provide the item in this format. Passing VT_EMPTY (void) means the client will accept the server’s canonical datatype. |
Public Properties
| Name | Description | |
|---|---|---|
 | RequestedType | The data type requested by the client as a .Net data type. |