FireDAC.Stan.Param.TFDParam Methods

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InheritedProtected

AfterConstruction	public	Responds after the last constructor has executed.
Assign	public	Assigns a object to this object.
AssignDlpParam	protected
AssignField	public	Assigns the DataType, Name, and Value from a TField object.
AssignFieldValue	public	Assigns the DataType and Value properties from a TField object.
AssignParam	protected
AssignTo	protected
AssignToDlpParam	protected
AssignVarRec	public	Assigns the value of the specified element of an array of constants to the specified index of an array property of this FireDAC parameter object that matches the type of the specified element.
BeforeDestruction	public	Responds before the first destructor executes.
Changed	protected	Updates the collection to reflect changes to the collection item.
CheckDisposed	protected
ClassInfo	public	Returns a pointer to the run-time type information (RTTI) table for the object type.
ClassName	public	Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument).
ClassNameIs	public	Determines whether an object is of a specific type.
ClassParent	public	Returns the type of the immediate ancestor of a class.
ClassType	public	Returns the class reference for the object's class.
CleanupInstance	public	Performs finalization on long strings, variants, and interface variables within a class.
Clear	public	Sets the Value of the parameter to NULL.
Create	public	Creates an instance of TFDParam.
DefaultHandler	public	Provides the interface for a method that processes message records.
DefineProperties	protected
Destroy	public	Destroys the TCollectionItem instance and frees its memory.
Dispatch	public	Calls message-handling methods for the object, based on the contents of the Message parameter.
DisposeOf	public	DisposeOf forces the execution of the destructor code in an object.
Equals	public	Checks whether the current instance and the Obj parameter are equal.
FieldAddress	public	Returns the address of a published object field.
Free	public	Destroys an object and frees its associated memory, if necessary.
FreeInstance	public	Deallocates memory allocated by a previous call to the NewInstance method.
GetBlobRawData	public	Fills ALen with the length (in bytes) of the Value of the parameter, and APtr with a pointer to that value.
GetData	public	Fills the buffer with the Value of the parameter in the native FireDAC database driver format.
GetDataLength	public	Indicates the length of the data depending on the type of the DataType property.
GetDataReader	public	Returns a pointer to the value of the parameter, or a nil pointer if the value is not an object.
GetDataSize	public	Returns the number of bytes required to store a value of a parameter.
GetDisplayName	protected
GetDisposed	protected	Getter for the Disposed property.
GetHashCode	public	Returns an integer containing the hash code.
GetInterface	public	Retrieves a specified interface.
GetInterfaceEntry	public	Returns the entry for a specific interface implemented in a class.
GetInterfaceTable	public	Returns a pointer to a structure containing all of the interfaces implemented by a given class.
GetNamePath	public	Returns a string used by the Object Inspector.
GetOwner	protected	Returns the collection to which this item belongs.
InheritsFrom	public	Determines the relationship of two object types.
InitInstance	public	Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer.
InstanceSize	public	Returns the size in bytes of each instance of the object type.
IsEqual	protected
LoadFromFile	public	Loads the value from a BLOB parameter from the specified file.
LoadFromStream	public	Loads the value of a BLOB parameter from a stream.
MethodAddress	public	Returns the address of a class method by name.
MethodName	public	Returns the name of a class method by address.
NewInstance	public	Allocates memory for an instance of an object type and returns a pointer to that new instance.
QualifiedClassName	public	Returns the qualified name of the class.
Release	public
SafeCallException	public	Handles exceptions in methods declared using the safecall calling convention.
SetBlobRawData	public	Sets the DataType property to ftBlob.
SetCollection	protected	Sets the value of the Collection property.
SetData	public	Copies a new value for the parameter in the physical database format from ABuffer.
SetDataSet	public	Assigns a dataset object to a parameter.
SetDisplayName	protected	Sets the name of the collection item as it appears in the collection editor.
SetIndex	protected	Moves the collection item to a specified position in the parent collection.
SetObjectValue	public	Sets the value of a TFDParam instance to the given object, using the specified ownership flag.
SetStream	public	Assigns a stream object to a parameter.
ToString	public	Returns a string containing the class name.
UnitName	public	Returns the name of the unit where the class is defined.
UnitScope	public	Returns the class's unit scope.