TParam Members

The following tables list the members exposed by TParam.

	Name	Description
	AssignParam	This is AssignParam, a member of class TParam.
	AssignTo	Copies the properties of an object to a destination object.
	Changed	Updates the collection to reflect changes to the collection item.
	DefineProperties	Provides an interface for a method that reads and writes otherwise unpublished data.
	GetAsAnsiString	This is GetAsAnsiString, a member of class TParam.
	GetAsBCD	This is GetAsBCD, a member of class TParam.
	GetAsBoolean	This is GetAsBoolean, a member of class TParam.
	GetAsBytes	This is GetAsBytes, a member of class TParam.
	GetAsCurrency	This is GetAsCurrency, a member of class TParam.
	GetAsDataset	This is GetAsDataset, a member of class TParam.
	GetAsDateTime	This is GetAsDateTime, a member of class TParam.
	GetAsFloat	This is GetAsFloat, a member of class TParam.
	GetAsFMTBCD	This is GetAsFMTBCD, a member of class TParam.
	GetAsInteger	This is GetAsInteger, a member of class TParam.
	GetAsLargeInt	This is GetAsLargeInt, a member of class TParam.
	GetAsLongWord	This is GetAsLongWord, a member of class TParam.
	GetAsMemo	This is GetAsMemo, a member of class TParam.
	GetAsParams	This is GetAsParams, a member of class TParam.
	GetAsSQLTimeStamp	This is GetAsSQLTimeStamp, a member of class TParam.
	GetAsStream	This is GetAsStream, a member of class TParam.
	GetAsString	This is GetAsString, a member of class TParam.
	GetAsVariant	This is GetAsVariant, a member of class TParam.
	GetAsWideString	This is GetAsWideString, a member of class TParam.
	GetDisplayName	Returns the name of the collection item as it appears in the collection editor.
	GetIsNull	This is GetIsNull, a member of class TParam.
	GetOwner	Returns the collection to which this item belongs.
	GetOwner	Returns the owner of an object.
	IsEqual	This is IsEqual, a member of class TParam.
	SetAsAnsiString	This is SetAsAnsiString, a member of class TParam.
	SetAsBCD	This is SetAsBCD, a member of class TParam.
	SetAsBlob	This is SetAsBlob, a member of class TParam.
	SetAsBoolean	This is SetAsBoolean, a member of class TParam.
	SetAsByte	This is SetAsByte, a member of class TParam.
	SetAsBytes	This is SetAsBytes, a member of class TParam.
	SetAsCurrency	This is SetAsCurrency, a member of class TParam.
	SetAsDataSet	This is SetAsDataSet, a member of class TParam.
	SetAsDate	This is SetAsDate, a member of class TParam.
	SetAsDateTime	This is SetAsDateTime, a member of class TParam.
	SetAsFloat	This is SetAsFloat, a member of class TParam.
	SetAsFMTBCD	This is SetAsFMTBCD, a member of class TParam.
	SetAsInteger	This is SetAsInteger, a member of class TParam.
	SetAsLargeInt	This is SetAsLargeInt, a member of class TParam.
	SetAsLongWord	This is SetAsLongWord, a member of class TParam.
	SetAsMemo	This is SetAsMemo, a member of class TParam.
	SetAsParams	This is SetAsParams, a member of class TParam.
	SetAsShortInt	This is SetAsShortInt, a member of class TParam.
	SetAsSmallInt	This is SetAsSmallInt, a member of class TParam.
	SetAsSQLTimeStamp	This is SetAsSQLTimeStamp, a member of class TParam.
	SetAsStream	This is SetAsStream, a member of class TParam.
	SetAsString	This is SetAsString, a member of class TParam.
	SetAsTime	This is SetAsTime, a member of class TParam.
	SetAsVariant	This is SetAsVariant, a member of class TParam.
	SetAsWideString	This is SetAsWideString, a member of class TParam.
	SetAsWord	This is SetAsWord, a member of class TParam.
	SetCollection	Sets the value of the Collection property.
	SetDataType	This is SetDataType, a member of class TParam.
	SetDisplayName	Sets the name of the collection item as it appears in the collection editor.
	SetIndex	Moves the collection item to a specified position in the parent collection.
	SetText	This is SetText, a member of class TParam.

Protected Properties

	Name	Description
	DataSet	This is DataSet, a member of class TParam.

Public Methods

	Name	Description
	AfterConstruction	Responds after the last constructor has executed.
	Assign	Copies the Name and Value of another TParam object.
	AssignField	Assigns the DataType, Name, and Value properties from a TField object.
	AssignFieldValue	Assigns the DataType and Value properties from a TField object.
	BeforeDestruction	Responds before the first destructor executes.
	ClassInfo	Returns a pointer to the runtime type information (RTTI) table for the object type.
	ClassName	Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument).
	ClassNameIs	Determines whether an object is of a specific type.
	ClassParent	Returns the type of the immediate ancestor of a class.
	ClassType	Returns the class reference for the object's class.
	CleanupInstance	Performs finalization on long strings, variants, and interface variables within a class.
	Clear	Sets the Value of the parameter to NULL.
	Create	This is the overview for the Create constructor overload.
	DefaultHandler	Provides the interface for a method that processes message records.
	Destroy	Destroys the TCollectionItem instance and frees its memory.
	Destroy	Destroys the TPersistent instance and frees its memory.
	Destroy	Disposes of an object instance.
	Dispatch	Calls message-handling methods for the object, based on the contents of the Message parameter.
	Equals	Checks if the current instance and the parameter are equal.
	FieldAddress	This is the overview for the FieldAddress method overload.
	Free	Destroys an object and frees its associated memory, if necessary.
	FreeInstance	Deallocates memory allocated by a previous call to the System::TObject::NewInstance method.
	GetData	Fills the buffer with the Value of the parameter in the native format of a database field of the appropriate type.
	GetDataSize	Returns the number of bytes needed to hold the parameter's value in the format used by the corresponding type of database field.
	GetHashCode	Returns an integer containing the hash code.
	GetInterface	Retrieves a specified interface.
	GetInterfaceEntry	Returns the entry for a specific interface implemented in a class.
	GetInterfaceTable	Returns a pointer to a structure containing all of the interfaces implemented by a given class.
	GetNamePath	Returns a string used by the Object Inspector.
	GetNamePath	Returns the name of the object as it appears in the Object Inspector.
	InheritsFrom	Determines the relationship of two object types.
	InitInstance	Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer.
	InstanceSize	Returns the size in bytes of each instance of the object type.
	LoadFromFile	Loads the value of a BLOB parameter from the specified file.
	LoadFromStream	Loads the value of a BLOB parameter from a stream.
	MethodAddress	This is the overview for the MethodAddress method overload.
	MethodName	Returns the name of a class method by address.
	NewInstance	Allocates memory for an instance of an object type and returns a pointer to that new instance.
	SafeCallException	Handles exceptions in methods declared using the safecall calling convention.
	SetBlobData	Copies a new value for the parameter in physical database format from Buffer.
	SetData	Copies a new value for the parameter in physical database format from Buffer.
	SetDataSet	Used by TSqlServerMethod component to set DataSet Parameter.
	SetParams	This is SetParams, a member of class TParam.
	SetStream	This is SetStream, a member of class TParam.
	ToString	Returns a string containing the class name.
	UnitName	Returns a string containing the unit name.

Public Properties

	Name	Description
	AsAnsiString	This is AsAnsiString, a member of class TParam.
	AsBCD	Specifies the value of the parameter when it represents a binary-coded decimal (BCD) field with less than 4 decimal places or 20 significant digits.
	AsBlob	Specifies the value of the parameter when it represents a binary large object (BLOB) field.
	AsBoolean	Specifies the value of the parameter when it represents a boolean field.
	AsByte	This is AsByte, a member of class TParam.
	AsBytes	This is AsBytes, a member of class TParam.
	AsCurrency	Specifies the value of the parameter when it represents a field of type Currency.
	AsDataSet	Used by TSqlServerMethod to access TDataSet parameters.
	AsDate	Specifies the value of the parameter when it represents a date field.
	AsDateTime	Specifies the value of the parameter when it represents a date-time field.
	AsFloat	Specifies the value of the parameter when it represents a float field.
	AsFMTBCD	Specifies the value of the parameter when it represents a binary-coded decimal (BCD) field with more than 4 decimal places or 20 significant digits
	AsInteger	Specifies the value of the parameter when it represents an integer field.
	AsLargeInt	This is AsLargeInt, a member of class TParam.
	AsLongWord	This is AsLongWord, a member of class TParam.
	AsMemo	Specifies the value of the parameter when it represents a memo field.
	AsParams	Used by TSqlServerMethod to access TParams parameters.
	AsShortInt	This is AsShortInt, a member of class TParam.
	AsSmallInt	Specifies the value of the parameter when it represents a small integer field.
	AsSQLTimeStamp	Specifies the value of the parameter when it represents an SQL timestamp field.
	AsStream	Used by TSqlServerMethod to access TStream parameters.
	AsString	Specifies the value of the parameter when it represents a string field.
	AsTime	Specifies the value of the parameter when it represents a time field.
	AsWideString	This is AsWideString, a member of class TParam.
	AsWord	Specifies the value of the parameter when it represents a word field.
	Bound	Indicates whether a value (NULL or otherwise) has been assigned to the parameter.
	Collection	Specifies the TCollection instance to which the TCollectionItem belongs.
	DisplayName	The name displayed in the Collection editor.
	ID	A unique, permanent index for the item.
	Index	Returns the item's position in the Items array of TCollection.
	IsNull	Indicates whether the value assigned to the parameter is NULL (blank).
	NativeStr	Indicates the value of the parameter as a string, using the character set of the database table.
	Text	Represents the value of the parameter as a string.

Published Properties

	Name	Description
	DataType	Indicates the type of field whose value the parameter represents.
	Name	Specifies the name of the parameter.
	NumericScale	Specifies the number of decimal places for the parameter.
	ParamType	Indicates the type of the parameter the TParam represents.
	Precision	Specifies the number of digits allowed for a numeric parameter.
	Size	Specifies the number of characters in a string-type parameter.
	Value	Represents the value of the parameter as a Variant.

What do you think about this topic? Send feedback!