FireDAC.Comp.DataSet.TFDSQLTimeIntervalField Methods
InheritedProtected
_AddRef | protected | Called when an application uses a component interface. |
_Release | protected | Called when an application releases a component interface. |
AccessError | protected | Creates en error message and returns an EDatabaseError exception. |
AfterConstruction | public | Responds after the last constructor has executed. |
Assign | public | Copies the Value property from another field component or assigns another object to the field component. |
AssignTo | protected | Copies the properties of an object to a destination object. |
AssignValue | public | Sets the field value using one of the AsInteger, AsBoolean, AsString or AsFloat properties. |
AsyncSchedule | protected | Schedules asynch method calls. |
BeforeDestruction | public | Performs any necessary actions before the first destructor is called. |
BeginInvoke | public | Performs an asynchronous call to the method specified by either AProc or AFunc . |
Bind | protected | Verifies whether the field is a lookup field and refreshes or validates the lookup list. |
CanObserve | protected | |
Change | protected | Generates an OnChange event. |
ChangeName | protected | Sets the private, internal storage for the Name property to the string passed in NewName . |
CheckDisposed | protected | |
CheckInactive | protected | Checks whether the dataset is inactive or not. |
CheckTypeSize | protected | Performs the validation of a field's size. |
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 field to NULL. |
CopyData (deprecated) | protected | Copies bytes of data from a given source to a given destination. |
Create | public | |
DataChanged | protected | Generates a deFieldChange event. |
DataSetMissingError | protected | Raises an EDatabaseError exception. |
DefaultHandler | public | Provides the interface for a method that processes message records. |
DefineProperties | protected | Designates a method for storing TField unpublished data on a stream such as a form file. |
Destroy | public | |
DestroyComponents | public | Destroys all owned components. |
Destroying | public | Indicates that the component and its owned components are about to be destroyed. |
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. |
EndFunctionInvoke | public | Blocks the caller until the specified ASyncResult completes. |
EndInvoke | public | Blocks the caller until the specified ASyncResult completes. |
Equals | public | Checks whether the current instance and the Obj parameter are equal. |
ExecuteAction | public | Executes an action. |
FieldAddress | public | Returns the address of a published object field. |
FieldValueError | protected | Raises an EDatabaseError exception. |
FindComponent | public | Indicates whether a given component is owned by the component. |
FocusControl | public | Forces a form's focus to the first data-aware component associated with the field object. |
Free | public | Destroys an object and frees its associated memory, if necessary. |
FreeBuffers | protected | Frees used buffers. |
FreeInstance | public | Deallocates memory allocated by a previous call to the NewInstance method. |
FreeNotification | public | Ensures that AComponent is notified that the component is going to be destroyed. |
FreeOnRelease | public | Frees the interface reference for components that were created from COM classes. |
GetAsAnsiString | protected | Returns the value of the field as an AnsiString. |
GetAsBCD | protected | Returns the value of the field as a TBcd. |
GetAsBoolean | protected | Returns the value of the field as a Boolean. |
GetAsByteArray | protected | Returns the value of the field as a Variant holding unformatted data. |
GetAsBytes | protected | Returns the value of the field as TBytes. |
GetAsCurrency | protected | Returns the value of the field as a Currency. |
GetAsDateTime | protected | Returns the value of the field as a TDateTime. |
GetAsExtended | protected | Returns the value of the field as an Extended. |
GetAsFloat | protected | Returns the value of the field as a Double. |
GetAsGuid | protected | |
GetAsInteger | protected | Returns the value of the field as an Integer. |
GetAsLargeInt | protected | Returns the value of the field as an Int64. |
GetAsLongWord | protected | |
GetAsSingle | protected | Returns the value of the field as a Single. |
GetAsSQLTimeStamp | protected | Returns the value of the field as a TSQLTimeStamp. |
GetAsSQLTimeStampOffset | protected | Returns the value of the field as a TSQLTimeStampOffset. |
GetAsString | protected | |
GetAsVariant | protected | |
GetAsWideString | protected | Returns the value of the field as a WideString. |
GetCanModify | protected | Returns whether the field's contents can be modified. |
GetChildOwner | protected | Returns the owner of a child component being read from a stream. |
GetChildParent | protected | Returns the parent or, if there is no parent, returns the owner of a child component being read from a stream. |
GetChildren | protected | Enumerates all child components. |
GetClassDesc | protected | |
GetData (deprecated) | public | Returns the unformatted data for the field. |
GetDataSize | protected | Returns the number of bytes required to store a field component's value. |
GetDefaultWidth | protected | Returns the field's default width. |
GetDeltaStreams | protected | |
GetDisposed | protected | Getter for the Disposed property. |
GetEnumerator | public | Returns a TComponent enumerator. |
GetFieldNo | protected | Returns the ordinal position of the field's column in the underlying table or query result. |
GetHasConstraints | protected | Returns whether field values are constrained. |
GetHashCode | public | Returns an integer containing the hash code. |
GetIDsOfNames | protected | Maps a single member and an optional set of argument names to a corresponding set of integer dispatch identifiers (dispIDs). |
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. |
GetIOSize | protected | Returns the maximum number of bytes of the buffer. |
GetIsNull | protected | Returns whether the field has data or not. |
GetLookupListClass | protected | Returns the TLookupListClass data type. |
GetNamePath | public | Returns a string used by the Object Inspector. |
GetObservers | protected | Getter of Observers. |
GetOwner | protected | Returns the owner of a component. |
GetParentComponent | public | Returns the component which directs the loading and saving of the field. |
GetSize | protected | Returns the size used in the definition of the physical database field for data types that support different sizes. |
GetText | protected | Returns the field's value as a string. |
GetTypeInfo | protected | Retrieves the type information for an object. |
GetTypeInfoCount | protected | Returns the number of type information interfaces that an object provides (either 0 or 1). |
GetWideText | protected | Returns the field's value as a UnicodeString. |
HasParent | public | Returns true, indicating that field components act as part of a larger composite. |
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. |
InsertComponent | public | Establishes the component as the owner of a specified component. |
InstanceSize | public | Returns the size in bytes of each instance of the object type. |
Invoke | protected | Provides access to Automation properties and methods when the component wraps an Automation object. |
IsBlob | public | Indicates whether the field represents the data in a binary large object (BLOB) field. |
IsImplementorOf | public | Indicates whether the component implements a specified interface. |
IsValidChar | public | Indicates whether a particular character is valid for the field. |
Loaded | protected | Initializes the component after the form file has been read into memory. |
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. |
Notification | protected | Notifies that components are to be inserted to or removed from a form. |
ObserverAdded | protected | |
operator () | public | C++ conversion of a TComponent into a System.Classes.IInterfaceComponentReference or a System.IInterface, depending on casting. |
PaletteCreated | protected | Responds when the component is created from the component palette. |
PropertyChanged | protected | Generates dataset change and layout change events. |
QualifiedClassName | public | Returns the qualified name of the class. |
QueryInterface | protected | Returns a reference to a specified interface if the current component supports that interface. |
ReadState | protected | Reads the state of the component. |
ReferenceInterface | public | Establishes or removes internal links that cause this component to be notified when the implementer of a specified interface is destroyed. |
RefreshLookupList | public | Loads LookupList with all the values for LookupResultField that match distinct values of LookupKeyFields. |
RemoveComponent | public | Removes a specified component specified from the component's Components list. |
RemoveFreeNotification | public | Disables the destruction notification that was enabled by FreeNotification. |
RemoveFreeNotifications | protected | Notifies all owned components of the owner component's imminent destruction. |
SafeCallException | public | Handles exceptions in methods declared using the safecall calling convention. |
SetAncestor | protected | Clears or sets csAncestor state in the component's ComponentState property. |
SetAsAnsiString | protected | Sets the value of the field with the given AnsiString value. |
SetAsBCD | protected | Sets the value of the field with the given TBcd value. |
SetAsBoolean | protected | Sets the value of the field with the given Boolean value. |
SetAsByteArray | protected | Sets the value of the field with the given unformatted data passed-in as a Variant. |
SetAsBytes | protected | Sets the value of the field with the given unformatted data passed in as TBytes. |
SetAsCurrency | protected | Sets the value of the field with the given Currency value. |
SetAsDateTime | protected | Sets the value of the field with the given TDateTime value. |
SetAsExtended | protected | Sets the value of the field with the given Extended value. |
SetAsFloat | protected | Sets the value of the field with the given Double value. |
SetAsGuid | protected | |
SetAsInteger | protected | Sets the value of the field with the given Integer value. |
SetAsLargeInt | protected | Sets the value of the field with the given Int64 value. |
SetAsLongWord | protected | |
SetAsSingle | protected | Sets the value of the field with the given Single value. |
SetAsSQLTimeStamp | protected | Sets the value of the field with the given TSQLTimeStamp value. |
SetAsSQLTimeStampOffset | protected | Sets the value of the field with the given TSQLTimeStampOffset value. |
SetAsString | protected | |
SetAsVariant | protected | Attempts to set the value of the field with the given Variant value. |
SetAsWideString | protected | Sets the value of the field with the given WideString value. |
SetChildOrder | protected | Sets the visual ordering of a child control. |
SetData (deprecated) | public | Assigns unformatted data to the field. |
SetDataSet | protected | Adds the field to the specified dataset. |
SetDataType | protected | Sets the data type of the field's contents. |
SetDesigning | protected | Ensures that components inserted at design time have their design-mode flag set. |
SetDesignInstance | protected | Ensures that components inserted at design time have their design-mode flag set. |
SetFieldDefProps | public | Sets the properties of the specified FieldDef from this field's properties. |
SetFieldKind | protected | Sets the field's kind according to the given parameter. |
SetFieldProps | public | Sets this field's properties from the given definition. |
SetFieldType | public | Provides the interface for a method that can set the DataType for the field. |
SetInline | protected | Sets the csInline bit of the component's ComponentState property. |
SetName | protected | Sets the value of the Name property. |
SetParentComponent | public | Sets the parent component. |
SetParentField | protected | Sets the TObjectField from which the field is derived. |
SetSize | protected | Sets the field's size. |
SetSubComponent | public | Identifies whether the component is a subcomponent. |
SetText | protected | Sets the value of the field with the given string value. |
SetVarValue | protected | |
SetWideText | protected | Sets the value of the field with the given UnicodeString value. |
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. |
UpdateAction | public | Updates the state of an action. |
Updated | protected | Clears the csUpdating state in the component's ComponentState property when the component finishes updating. |
UpdateRegistry | protected | Provides the interface for a method that adds type library and version information to the Registry on components that implement COM interfaces. |
Updating | protected | Sets the csUpdating state in the component's ComponentState property. |
Validate (deprecated) | public | Generates an OnValidate event. |
ValidateContainer | protected | Determines whether an object can be inserted into a container. |
ValidateInsert | protected | Provides the interface for a method that validates a child component before it is inserted. |
ValidateRename | protected | Ensures that renaming an owned component does not create a name conflict. |
WriteState | protected | Writes the state of the component. |