Base class for a packet to be used for requesting information from a historian.
Declaration Syntax| C# | Visual Basic | Visual C++ |
public abstract class QueryPacketBase : PacketBase
Public MustInherit Class QueryPacketBase _ Inherits PacketBase
public ref class QueryPacketBase abstract : public PacketBase
Members| All Members | Constructors | Methods | Properties | ||
| Icon | Member | Description |
|---|---|---|
 | QueryPacketBase(Int16) |
Initializes a new instance of the query packet.
|
 | Archive |
Gets or sets the current IArchive.
(Inherited from PacketBase.) |
| BinaryImage |
Gets the binary representation of the query packet.
(Overrides PacketBase.BinaryImage.) |
| BinaryLength |
Gets the length of the BinaryImage.
(Overrides PacketBase.BinaryLength.) |
| CommonHeader |
Gets or sets the PacketCommonHeader for the packet.
(Inherited from PacketBase.) |
 | Equals(Object) | (Inherited from Object.) |
| ExtractTimeSeriesData()()() |
Extracts time-series data from the query packet type.
(Overrides PacketBase.ExtractTimeSeriesData()()().) |
| Finalize()()() |
Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.
(Inherited from Object.) |
| GetHashCode()()() |
Serves as a hash function for a particular type.
(Inherited from Object.) |
| GetType()()() |
Gets the Type of the current instance.
(Inherited from Object.) |
| Initialize(array<Byte>[]()[], Int32, Int32) |
Initializes the query packet from the specified binaryImage.
(Overrides PacketBase.Initialize(array<Byte>[]()[], Int32, Int32).) |
| MemberwiseClone()()() |
Creates a shallow copy of the current Object.
(Inherited from Object.) |
| PreProcessHandler |
Gets or sets the Delegate that pre-processes the packet.
(Inherited from PacketBase.) |
| ProcessHandler |
Gets or sets the Delegate that processes the packet.
(Inherited from PacketBase.) |
| RequestIDs |
Gets a list of historian identifiers whose information is being requested.
|
| ToString()()() | (Inherited from Object.) |
| TypeID |
Gets or sets the numeric identifier for the packet type.
(Inherited from PacketBase.) |
Inheritance Hierarchy| Object | |||
 | PacketBase | ||
| QueryPacketBase | ||
 | PacketType11 | ||
| PacketType3 | ||
| PacketType4 | ||