Data.DB.TParam Methods
InheritedProtected
AfterConstruction | public | Responds after the last constructor has executed. |
Assign | public | Copies the Name and Value of another TParam object. |
AssignField | public | Assigns the DataType, Name, and Value properties from a TField object. |
AssignFieldValue | public | Assigns the DataType and Value properties from a TField object. |
AssignParam | protected | |
AssignTo | protected | |
BeforeDestruction | public | Responds before the first destructor executes. |
Changed | protected | Updates the collection to reflect changes to the collection item. |
CheckDisposed | protected | This method is deprecated. |
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 TParam and inserts it in a parameter list. |
DefaultHandler | public | Provides the interface for a method that processes message records. |
DefineProperties | protected | Provides an interface for a method that reads and writes otherwise unpublished data. |
Destroy | public | |
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. |
GetAsAnsiString | protected | The protected method that returns the value of the parameter as a System.AnsiString. |
GetAsBCD | protected | The protected method that returns the value of the parameter as a TBcd. |
GetAsBoolean | protected | The protected method that returns the value of the parameter as a Boolean. |
GetAsBytes | protected | The protected method that returns the value of the field parameter as TBytes. |
GetAsCurrency | protected | |
GetAsDataset | protected | Used by TSQLServerMethod to read TDataSet parameters. |
GetAsDateTime | protected | |
GetAsFloat | protected | |
GetAsFMTBCD | protected | |
GetAsGuid | protected | |
GetAsInteger | protected | |
GetAsLargeInt | protected | |
GetAsLongWord | protected | |
GetAsMemo | protected | |
GetAsObject | protected | The protected method that returns the value of the field as a TObject. |
GetAsParams | protected | Used by TSQLServerMethod to read TParams parameters. |
GetAsSingle | protected | |
GetAsSQLTimeStamp | protected | |
GetAsSQLTimeStampOffset | protected | |
GetAsStream | protected | Used by TSQLServerMethod to read TStream parameters. |
GetAsString | protected | |
GetAsVariant | protected | The protected method that returns the value of the parameter as a System.Variant. |
GetAsWideString | protected | |
GetData | public | Fills the buffer with the Value of the parameter in the native format of a database field of the appropriate type. |
GetDataSize | public | Returns the number of bytes needed to hold the parameter's value in the format used by the corresponding type of database field. |
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. |
GetIsNull | protected | |
GetNamePath | public | Returns a string used by the Object Inspector. |
GetOwner | protected | Returns the collection to which this item belongs. |
GetParamObject | protected | In case the TParam instance stores an object type value, this method returns an interface of type IParamObject from the instance's value. |
HasParamObject | protected | Specifies whether the TParam instance stores a value of the given object type. |
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 of 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. |
SetAsAnsiString | protected | |
SetAsBCD | protected | |
SetAsBlob | protected | |
SetAsBoolean | protected | |
SetAsByte | protected | |
SetAsBytes | protected | The protected method that sets the value of the field parameter with the given TBytes. |
SetAsCurrency | protected | |
SetAsDataSet | protected | Used by TSQLServerMethod to set TDataSet parameters. |
SetAsDate | protected | |
SetAsDateTime | protected | |
SetAsFloat | protected | |
SetAsFMTBCD | protected | |
SetAsGuid | protected | |
SetAsInteger | protected | |
SetAsLargeInt | protected | |
SetAsLongWord | protected | |
SetAsMemo | protected | |
SetAsObject | protected | Used by TSQLServerMethod to set TObject parameters. |
SetAsParams | protected | Used by TSQLServerMethod to set TParams parameters. |
SetAsShortInt | protected | |
SetAsSingle | protected | |
SetAsSmallInt | protected | |
SetAsSQLTimeStamp | protected | |
SetAsSQLTimeStampOffset | protected | |
SetAsStream | protected | Used by TSQLServerMethod to set TStream parameters. |
SetAsString | protected | |
SetAsTime | protected | |
SetAsVariant | protected | |
SetAsWideString | protected | |
SetAsWord | protected | |
SetBlobData | public | Copies a new value for the parameter in physical database format from Buffer. |
SetCollection | protected | Sets the value of the Collection property. |
SetData | public | Copies a new value for the parameter in physical database format from Buffer. |
SetDataSet | public | Used by TSqlServerMethod component to set DataSet Parameter. |
SetDataType | protected | |
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 the TParam instance to the given object, using the specified ownership flag. |
SetParams | public | |
SetStream | public | Sets the value of the TParam instance to the given stream, using the specified ownership flag. |
SetText | protected | |
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. |