UnionInstance Class

Inheritance Hierarchy

SystemObject
  TwinCAT.Ads.TypeSystemInstance
    TwinCAT.Ads.TypeSystemSymbol
      TwinCAT.Ads.TypeSystemUnionInstance

Namespace: TwinCAT.Ads.TypeSystem
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll) Version: 7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470

C#

public sealed class UnionInstance : Symbol, 
    IUnionInstance, ISymbol, IAttributedInstance, IInstance, IBitSize

The UnionInstance type exposes the following members.

Properties

	Name	Description
	AccessRights	Gets the access rights. (Inherited from Symbol)
	Attributes	Gets the Type Attributes. (Inherited from Instance)
	BitSize	Gets the size of this Instance in bits. (Inherited from Instance)
	ByteSize	Gets the (aligned) size of of the Type/Instance in Bytes (Inherited from Instance)
	Category	Gets the the DataTypeCategory of the Instance. (Inherited from Instance)
	Comment	Gets the comment. (Inherited from Instance)
	Connection	Gets the connection that produces values for this IValueSymbol (Inherited from Symbol)
	ContextMask	Gets the context mask of this instance. (Inherited from Instance)
	DataType	Gets the IDataType of the IInstance. (Inherited from Instance)
	FieldInstances	Gets the member instances of the Struct Instance.
	HasValue	Gets a value indicating whether this instance has a value. (Inherited from Instance)
	ImageBaseAddress	Gets the AmsAddress of the Process Image (Inherited from Symbol)
	IndexGroup	Gets the index group of the Symbol (Inherited from Symbol)
	IndexOffset	Gets the index offset of the Symbol (Inherited from Symbol)
	InstanceName	Gets the name of the instance (without periods (.) (Inherited from Instance)
	InstancePath	Gets the relative / absolute access path to the instance (with periods (.)) (Inherited from Symbol)
	IsBitType	Gets a value indicating whether this instance is not basing on a full DataType but instead of some sort of bit mapping (Inherited from Instance)
	IsByteAligned	Indicates that the Size of the Object is Byte aligned (BitSize % 8 == 0) (Inherited from Instance)
	IsContainerType	Gets a value indicating whether this Symbol is a container/complex type. (Overrides SymbolIsContainerType)
	IsDereferencedPointer	Gets or sets a value indicating whether an ancestor is a dereferenced Pointer (Inherited from Symbol)
	IsDereferencedReference	Gets or sets a value indicating whether an ancestor is a dereferenced Reference (Inherited from Symbol)
	IsPersistent	Indicates that this instance is persistent. (Inherited from Instance)
	IsPointer	Gets a value indicating whether this instance is reference. (Inherited from Instance)
	IsPrimitiveType	Gets a value indicating whether this instance is primitive. (Overrides SymbolIsPrimitiveType)
	IsProperty	Gets a value indicating whether IInstance is a property. (Inherited from Instance)
	IsReadOnly	Indicates that this instance is read only. (Inherited from Instance)
	IsRecursive	Gets a value indicating whether this instance is recursive. (Inherited from Symbol)
	IsReference	Gets a value indicating whether this instance is reference. (Inherited from Instance)
	IsStatic	Gets a value indicating whether this IInstance is static. (Inherited from Instance)
	IsTcComInterfacePointer	Indicates that this instance is a TcComInterfacePointer. (Inherited from Instance)
	IsTypeGuid	Indicates that this instance has set TypeGuid flag. (Inherited from Instance)
	IsVirtual	Gets a value indicating whether this instance is virtual. (Inherited from Symbol)
	Namespace	Gets the namespace name. (Inherited from Instance)
	NotificationSettings	Gets or sets the notification settings. (Inherited from Symbol)
	Parent	Gets the parent Symbol (Inherited from Symbol)
	Size	Gets the size of the IDataType in bytes or Bits dependant on IsBitType (Inherited from Instance)
	SubSymbolCount	Gets the number of SubSymbols (Inherited from Symbol)
	SubSymbols	Gets the SubSymbols of the ISymbol (Inherited from Symbol)
	TypeName	Gets the name of the DataType that is used for this IInstance. (Inherited from Instance)
	ValueEncoding	Gets the value encoding. (Inherited from Symbol)

Methods

	Name	Description
	Equals(ISymbol)	Equalses the specified inst. (Inherited from Symbol)
	Equals(Object)	Equals (Inherited from Symbol)
	Equals(Symbol)	Equalses the specified inst. (Inherited from Symbol)
	GetHashCode	Gets the HashCode of the Address (Inherited from Symbol)
	GetType	Gets the Type of the current instance. (Inherited from Object)
	ReadAnyValue(Type)	Reads the value of this Value into a new created instance of the managed type (Inherited from Symbol)
	ReadAnyValue(Type, Int32)	Reads the value of this Value into a new created instance of the managed type (Inherited from Symbol)
	ReadAnyValueT	Reads the value of this Value into a new created instance of the managed type (Inherited from Symbol)
	ReadAnyValueT(Int32)	Reads the value of this Value into a new created instance of the managed type (Inherited from Symbol)
	ReadAnyValueAsync(Type, CancellationToken)	Reads the (AnyType) value asynchronously. (Inherited from Symbol)
	ReadAnyValueAsyncT(CancellationToken)	Read any value as an asynchronous operation. (Inherited from Symbol)
	ReadRawValue	Reads the raw value of the IValueSymbol (Ads Read / Write) (Inherited from Symbol)
	ReadRawValue(Int32)	Reads the raw value of the IValueSymbol (Ads Read / Write) (Inherited from Symbol)
	ReadRawValueAsync	Reads the raw value of the IValueSymbol (Ads Read / Write) asynchronously. (Inherited from Symbol)
	ReadValue	Reads the Value of the IValueSymbol (Inherited from Symbol)
	ReadValue(Int32)	Reads the Value of the IValueSymbol (Inherited from Symbol)
	ReadValueAsync	Reads the Value of the IValueSymbol asynchronously. (Inherited from Symbol)
	SetParent	Sets the parent symbol. (Inherited from Symbol)
	ToString	Returns a String that represents this instance. (Inherited from Symbol)
	TryReadValue	Reads the Value of the IValueSymbol (Inherited from Symbol)
	TryWriteValue	Writes the Value of the IValueSymbol (Inherited from Symbol)
	UpdateAnyValue(Object)	Reads the value of this Value into the specified managed value. (Inherited from Symbol)
	UpdateAnyValue(Object, Int32)	Reads the value of this Value into the specified managed value. (Inherited from Symbol)
	WriteRawValue(Byte)	Writes the raw value of the IValueSymbol (Ads Read / Write) (Inherited from Symbol)
	WriteRawValue(Byte, Int32)	Writes the raw value of the IValueSymbol (Ads Read / Write) (Inherited from Symbol)
	WriteRawValueAsync	Writes the raw value of the IValueSymbol (Ads Read / Write) (Inherited from Symbol)
	WriteValue(Object)	Writes the Value of the IValueSymbol (Inherited from Symbol)
	WriteValue(Object, Int32)	Writes the Value of the IValueSymbol (Inherited from Symbol)
	WriteValueAsync	Writes the Value of the IValueSymbol (Inherited from Symbol)

Events

	Name	Description
	RawValueChanged	Occurs when the RawValue of the IValueSymbol has changed. (Inherited from Symbol)
	ValueChanged	Occurs when the value of the IValueSymbol has changed. (Inherited from Symbol)

Extension Methods

	Name	Description
	HasExternalDataReferences	Indicates, that the Instance value includes process memory data, that cannot be read in one memory block. (Defined by DataTypeExtension)
	IsExternalDataReference	Indicates, that the field is static or is not part of the parents processimage memory location (Defined by DataTypeExtension)
	Unwrap	Gets the Unwrapped Symbol (Defined by SymbolExtensions)

Reference

TwinCAT.Ads.TypeSystem Namespace

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