FieldListDockPanel Methods

A control that displays the Snap data sources in a tree structure.

Name	Description
AccessibilityNotifyClients(AccessibleEvents, Int32, Int32) protected	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control . Inherited from Control.
AccessibilityNotifyClients(AccessibleEvents, Int32) protected	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control. Inherited from Control.
AddPanel()	Creates a new dock panel and docks it to the current dock panel. Inherited from DockPanel.
AdjustFormScrollbars(Boolean) protected	Adjusts the scroll bars on the container based on the current control positions and the control currently selected. Inherited from ContainerControl.
BeginInvoke(Delegate, Object[])	Executes the specified delegate asynchronously with the specified arguments, on the thread that the control’s underlying handle was created on. Inherited from Control.
BeginInvoke(Delegate)	Executes the specified delegate asynchronously on the thread that the control’s underlying handle was created on. Inherited from Control.
BringToFront()	Brings the control to the front of the z-order. Inherited from Control.
Close()	Imitates a click on the panel’s close button. Inherited from DockPanel.
Contains(Control)	Retrieves a value indicating whether the specified control is a child of the control. Inherited from Control.
CreateControl()	Forces the creation of the visible control, including the creation of the handle and any visible child controls. Inherited from Control.
CreateControlsInstance() protected	Creates a new instance of the control collection for the control. Inherited from Control.
CreateGraphics()	Creates the Graphics for the control. Inherited from Control.
CreateHandle() protected	Creates a handle for the control. Inherited from Control.
CreateObjRef(Type)	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. Inherited from MarshalByRefObject.
DefWndProc(Message) protected	Sends the specified message to the default window procedure. Inherited from Control.
DestroyHandle() protected	Destroys the handle associated with the control. Inherited from Control.
Dispose()	Releases all resources used by the Component. Inherited from Component.
DockAsMdiDocument()	Docks the panel to a DocumentManager located in the same form as the current DockManager. Inherited from DockPanel.
DockAsMdiDocument(Boolean)	Docks the panel to a DocumentManager located in the same form as the current DockManager and optionally activates this panel. Inherited from DockPanel.
DockAsTab(DockPanel, Int32)	Creates a tab which contains the current panel at the specified position within the target tab container. The target tab container is created if required. Inherited from DockPanel.
DockAsTab(DockPanel)	Appends a tab containing the current panel to the target tab container. The target tab container is created if necessary. Inherited from DockPanel.
DockTo(DockingStyle, Int32)	Docks the current panel to the form (user control) at the specified position using the specified style. Inherited from DockPanel.
DockTo(DockingStyle)	Docks the current panel to the form (or user control) using the specified style. Inherited from DockPanel.
DockTo(DockManager, DockingStyle, Int32)	Obsolete. This method is not supported. Inherited from DockPanel.
DockTo(DockManager, DockingStyle)	Obsolete. This method is not supported. Inherited from DockPanel.
DockTo(DockPanel, DockingStyle, Int32)	Docks the current panel on the form (user control) to the specified panel at the specified position using the specified style. Inherited from DockPanel.
DockTo(DockPanel, DockingStyle)	Docks the current panel to the specified panel using the specified style. Inherited from DockPanel.
DockTo(DockPanel, Int32)	Docks the current panel to the specified panel in the specified position. Inherited from DockPanel.
DockTo(DockPanel)	Docks the current panel to the specified panel. Inherited from DockPanel.
DoDragDrop(Object, DragDropEffects)	Begins a drag-and-drop operation. Inherited from Control.
DrawToBitmap(Bitmap, Rectangle)	Supports rendering to the specified bitmap. Inherited from Control.
EndInvoke(IAsyncResult)	Retrieves the return value of the asynchronous operation represented by the IAsyncResult passed. Inherited from Control.
Equals(Object, Object) static	Determines whether the specified object instances are considered equal. Inherited from Object.
Equals(Object)	Determines whether the specified object is equal to the current object. Inherited from Object.
FindForm()	Retrieves the form that the control is on. Inherited from Control.
Focus()	Sets input focus to the control. Inherited from Control.
FromChildHandle(IntPtr) static	Retrieves the control that contains the specified handle. Inherited from Control.
FromHandle(IntPtr) static	Returns the control that is currently associated with the specified handle. Inherited from Control.
GetAccessibilityObjectById(Int32) protected	Retrieves the specified AccessibleObject. Inherited from Control.
GetAutoSizeMode() protected	Retrieves a value indicating how a control will behave when its AutoSize property is enabled. Inherited from Control.
GetChildAtPoint(Point, GetChildAtPointSkip)	Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type. Inherited from Control.
GetChildAtPoint(Point)	Retrieves the child control that is located at the specified coordinates. Inherited from Control.
GetContainerControl()	Returns the next ContainerControl up the control’s chain of parent controls. Inherited from Control.
GetHashCode()	Serves as the default hash function. Inherited from Object.
GetHitInfo(Point)	Returns information about the panel’s element located at the specified point. Inherited from DockPanel.
GetLifetimeService()	Retrieves the current lifetime service object that controls the lifetime policy for this instance. Inherited from MarshalByRefObject.
GetNextControl(Control, Boolean)	Retrieves the next control forward or back in the tab order of child controls. Inherited from Control.
GetPreferredSize(Size)	Retrieves the size of a rectangular area into which a control can be fitted. Inherited from Control.
GetScaledBounds(Rectangle, SizeF, BoundsSpecified) protected	Retrieves the bounds within which the control is scaled. Inherited from Control.
GetScrollState(Int32) protected	Determines whether the specified flag has been set. Inherited from ScrollableControl.
GetService(Type) protected	Returns an object that represents a service provided by the Component or by its Container. Inherited from Component.
GetStyle(ControlStyles) protected	Retrieves the value of the specified control style bit for the control. Inherited from Control.
GetTopLevel() protected	Determines if the control is a top-level control. Inherited from Control.
GetType()	Gets the Type of the current instance. Inherited from Object.
HasAsChild(DockPanel)	Indicates whether the dock panel contains the specified child panel. Inherited from DockPanel.
HasAsParent(DockPanel)	Indicates whether the current panel has the specified panel as its parent. Inherited from DockPanel.
Hide()	Hides the panel. Inherited from DockPanel.
HideImmediately()	Hides the current auto-hidden panel immediately without a sliding animation effect. Inherited from DockPanel.
HideSliding()	Hides the current auto-hidden dock panel using a sliding animation effect. Inherited from DockPanel.
InitializeLifetimeService()	Obtains a lifetime service object to control the lifetime policy for this instance. Inherited from MarshalByRefObject.
InitLayout() protected	Called after the control has been added to another container. Inherited from Control.
Invalidate()	Invalidates the entire surface of the control and causes the control to be redrawn. Inherited from Control.
Invalidate(Boolean)	Invalidates a specific region of the control and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. Inherited from Control.
Invalidate(Rectangle, Boolean)	Invalidates the specified region of the control (adds it to the control’s update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. Inherited from Control.
Invalidate(Rectangle)	Invalidates the specified region of the control (adds it to the control’s update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Inherited from Control.
Invalidate(Region, Boolean)	Invalidates the specified region of the control (adds it to the control’s update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control. Inherited from Control.
Invalidate(Region)	Invalidates the specified region of the control (adds it to the control’s update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Inherited from Control.
Invoke(Delegate, Object[])	Executes the specified delegate, on the thread that owns the control’s underlying window handle, with the specified list of arguments. Inherited from Control.
Invoke(Delegate)	Executes the specified delegate on the thread that owns the control’s underlying window handle. Inherited from Control.
InvokeGotFocus(Control, EventArgs) protected	Raises the GotFocus event for the specified control. Inherited from Control.
InvokeLostFocus(Control, EventArgs) protected	Raises the LostFocus event for the specified control. Inherited from Control.
InvokeOnClick(Control, EventArgs) protected	Raises the Click event for the specified control. Inherited from Control.
InvokePaint(Control, PaintEventArgs) protected	Raises the Paint event for the specified control. Inherited from Control.
InvokePaintBackground(Control, PaintEventArgs) protected	Raises the PaintBackground event for the specified control. Inherited from Control.
IsInputChar(Char) protected	Determines if a character is an input character that the control recognizes. Inherited from Control.
IsInputKey(Keys) protected	Determines whether the specified key is a regular input key or a special key that requires preprocessing. Inherited from Control.
IsKeyLocked(Keys) static	Determines whether the CAPS LOCK, NUM LOCK, or SCROLL LOCK key is in effect. Inherited from Control.
IsMnemonic(Char, String) static	Determines if the specified character is the mnemonic character assigned to the control in the specified string. Inherited from Control.
MakeFloat()	Floats the current dock panel. Inherited from DockPanel.
MakeFloat(Point)	Floats the current dock panel at the specified position. Inherited from DockPanel.
MemberwiseClone() protected	Creates a shallow copy of the current Object. Inherited from Object.
MemberwiseClone(Boolean) protected	Creates a shallow copy of the current MarshalByRefObject object. Inherited from MarshalByRefObject.
NotifyInvalidate(Rectangle) protected	Raises the Invalidated event with a specified region of the control to invalidate. Inherited from Control.
OnAutoSizeChanged(EventArgs) protected	Raises the AutoSizeChanged event. Inherited from Control.
OnAutoValidateChanged(EventArgs) protected	Raises the AutoValidateChanged event. Inherited from ContainerControl.
OnBackgroundImageChanged(EventArgs) protected	Raises the BackgroundImageChanged event. Inherited from Control.
OnBackgroundImageLayoutChanged(EventArgs) protected	Raises the BackgroundImageLayoutChanged event. Inherited from Control.
OnBindingContextChanged(EventArgs) protected	Raises the BindingContextChanged event. Inherited from Control.
OnCausesValidationChanged(EventArgs) protected	Raises the CausesValidationChanged event. Inherited from Control.
OnChangeUICues(UICuesEventArgs) protected	Raises the ChangeUICues event. Inherited from Control.
OnClick(EventArgs) protected	Raises the Click event. Inherited from Control.
OnClientSizeChanged(EventArgs) protected	Raises the ClientSizeChanged event. Inherited from Control.
OnContextMenuChanged(EventArgs) protected	Raises the ContextMenuChanged event. Inherited from Control.
OnContextMenuStripChanged(EventArgs) protected	Raises the ContextMenuStripChanged event. Inherited from Control.
OnCursorChanged(EventArgs) protected	Raises the CursorChanged event. Inherited from Control.
OnDockChanged(EventArgs) protected	Raises the DockChanged event. Inherited from Control.
OnDragEnter(DragEventArgs) protected	Raises the DragEnter event. Inherited from Control.
OnDragLeave(EventArgs) protected	Raises the DragLeave event. Inherited from Control.
OnEnabledChanged(EventArgs) protected	Raises the EnabledChanged event. Inherited from Control.
OnEnter(EventArgs) protected	Raises the Enter event. Inherited from Control.
OnFontChanged(EventArgs) protected	Raises the FontChanged event. Inherited from ContainerControl.
OnForeColorChanged(EventArgs) protected	Raises the ForeColorChanged event. Inherited from Control.
OnGiveFeedback(GiveFeedbackEventArgs) protected	Raises the GiveFeedback event. Inherited from Control.
OnGotFocus(EventArgs) protected	Raises the GotFocus event. Inherited from Control.
OnHelpRequested(HelpEventArgs) protected	Raises the HelpRequested event. Inherited from Control.
OnImeModeChanged(EventArgs) protected	Raises the ImeModeChanged event. Inherited from Control.
OnInvalidated(InvalidateEventArgs) protected	Raises the Invalidated event. Inherited from Control.
OnKeyPress(KeyPressEventArgs) protected	Raises the KeyPress event. Inherited from Control.
OnLayout(LayoutEventArgs) protected	Raises the Layout event. Inherited from ContainerControl.
OnLocationChanged(EventArgs) protected	Raises the LocationChanged event. Inherited from Control.
OnMarginChanged(EventArgs) protected	Raises the MarginChanged event. Inherited from Control.
OnMouseCaptureChanged(EventArgs) protected	Raises the MouseCaptureChanged event. Inherited from Control.
OnMouseClick(MouseEventArgs) protected	Raises the MouseClick event. Inherited from Control.
OnMouseDoubleClick(MouseEventArgs) protected	Raises the MouseDoubleClick event. Inherited from Control.
OnMouseHover(EventArgs) protected	Raises the MouseHover event. Inherited from Control.
OnMouseWheel(MouseEventArgs) protected	Raises the MouseWheel event. Inherited from ScrollableControl.
OnMove(EventArgs) protected	Raises the Move event. Inherited from Control.
OnNotifyMessage(Message) protected	Notifies the control of Windows messages. Inherited from Control.
OnPaddingChanged(EventArgs) protected	Raises the PaddingChanged event. Inherited from ScrollableControl.
OnPaintBackground(PaintEventArgs) protected	Paints the background of the control. Inherited from ScrollableControl.
OnParentBackColorChanged(EventArgs) protected	Raises the BackColorChanged event when the BackColor property value of the control’s container changes. Inherited from Control.
OnParentBackgroundImageChanged(EventArgs) protected	Raises the BackgroundImageChanged event when the BackgroundImage property value of the control’s container changes. Inherited from Control.
OnParentBindingContextChanged(EventArgs) protected	Raises the BindingContextChanged event when the BindingContext property value of the control’s container changes. Inherited from Control.
OnParentCursorChanged(EventArgs) protected	Raises the CursorChanged event. Inherited from Control.
OnParentEnabledChanged(EventArgs) protected	Raises the EnabledChanged event when the Enabled property value of the control’s container changes. Inherited from Control.
OnParentFontChanged(EventArgs) protected	Raises the FontChanged event when the Font property value of the control’s container changes. Inherited from Control.
OnParentForeColorChanged(EventArgs) protected	Raises the ForeColorChanged event when the ForeColor property value of the control’s container changes. Inherited from Control.
OnParentRightToLeftChanged(EventArgs) protected	Raises the RightToLeftChanged event when the RightToLeft property value of the control’s container changes. Inherited from Control.
OnParentVisibleChanged(EventArgs) protected	Raises the VisibleChanged event when the Visible property value of the control’s container changes. Inherited from Control.
OnPreviewKeyDown(PreviewKeyDownEventArgs) protected	Raises the PreviewKeyDown event. Inherited from Control.
OnPrint(PaintEventArgs) protected	Raises the Paint event. Inherited from Control.
OnQueryContinueDrag(QueryContinueDragEventArgs) protected	Raises the QueryContinueDrag event. Inherited from Control.
OnRegionChanged(EventArgs) protected	Raises the RegionChanged event. Inherited from Control.
OnScroll(ScrollEventArgs) protected	Raises the Scroll event. Inherited from ScrollableControl.
OnSizeChanged(EventArgs) protected	Raises the SizeChanged event. Inherited from Control.
OnStyleChanged(EventArgs) protected	Raises the StyleChanged event. Inherited from Control.
OnSystemColorsChanged(EventArgs) protected	Raises the SystemColorsChanged event. Inherited from Control.
OnTabIndexChanged(EventArgs) protected	Raises the TabIndexChanged event. Inherited from Control.
OnTabStopChanged(EventArgs) protected	Raises the TabStopChanged event. Inherited from Control.
OnValidated(EventArgs) protected	Raises the Validated event. Inherited from Control.
OnValidating(CancelEventArgs) protected	Raises the Validating event. Inherited from Control.
PerformAutoScale()	Performs scaling of the container control and its children. Inherited from ContainerControl.
PerformLayout()	Forces the control to apply layout logic to all its child controls. Inherited from Control.
PerformLayout(Control, String)	Forces the control to apply layout logic to all its child controls. Inherited from Control.
PointToClient(Point)	Computes the location of the specified screen point into client coordinates. Inherited from Control.
PointToScreen(Point)	Computes the location of the specified client point into screen coordinates. Inherited from Control.
PreProcessControlMessage(Message)	Preprocesses keyboard or input messages within the message loop before they are dispatched. Inherited from Control.
PreProcessMessage(Message)	Preprocesses keyboard or input messages within the message loop before they are dispatched. Inherited from Control.
ProcessCmdKey(Message, Keys) protected	Processes a command key. Inherited from ContainerControl.
ProcessDialogChar(Char) protected	Processes a dialog character. Inherited from ContainerControl.
ProcessDialogKey(Keys) protected	Processes a dialog key. Inherited from ContainerControl.
ProcessKeyEventArgs(Message) protected	Processes a key message and generates the appropriate control events. Inherited from Control.
ProcessKeyMessage(Message) protected	Processes a keyboard message. Inherited from Control.
ProcessKeyPreview(Message) protected	Previews a keyboard message. Inherited from Control.
ProcessMnemonic(Char) protected	Processes a mnemonic character. Inherited from ContainerControl.
RaiseDragEvent(Object, DragEventArgs) protected	Raises the appropriate drag event. Inherited from Control.
RaiseKeyEvent(Object, KeyEventArgs) protected	Raises the appropriate key event. Inherited from Control.
RaiseMouseEvent(Object, MouseEventArgs) protected	Raises the appropriate mouse event. Inherited from Control.
RaisePaintEvent(Object, PaintEventArgs) protected	Raises the appropriate paint event. Inherited from Control.
RecreateHandle() protected	Forces the re-creation of the handle for the control. Inherited from Control.
RectangleToClient(Rectangle)	Computes the size and location of the specified screen rectangle in client coordinates. Inherited from Control.
RectangleToScreen(Rectangle)	Computes the size and location of the specified client rectangle in screen coordinates. Inherited from Control.
ReferenceEquals(Object, Object) static	Determines whether the specified Object instances are the same instance. Inherited from Object.
ReflectMessage(IntPtr, Message) protected static	Reflects the specified message to the control that is bound to the specified handle. Inherited from Control.
Refresh()	Forces the control to invalidate its client area and immediately redraw itself and any child controls. Inherited from Control.
Register(DockManager)	Registers the dock panel. Inherited from DockPanel.
RemovePanel(DockPanel)	Destroys the specified child panel. Inherited from DockPanel.
ResetBackColor()	Resets the BackColor property to its default value. Inherited from Control.
ResetBindings()	Causes a control bound to the BindingSource to reread all the items in the list and refresh their displayed values. Inherited from Control.
ResetCursor()	Resets the Cursor property to its default value. Inherited from Control.
ResetFont()	Resets the Font property to its default value. Inherited from Control.
ResetForeColor()	Resets the ForeColor property to its default value. Inherited from Control.
ResetImeMode()	Resets the ImeMode property to its default value. Inherited from Control.
ResetMouseEventArgs() protected	Resets the control to handle the MouseLeave event. Inherited from Control.
ResetRightToLeft()	Resets the RightToLeft property to its default value. Inherited from Control.
Restore()	Restores the panel to its previous docking position. Inherited from DockPanel.
ResumeLayout()	Resumes usual layout logic. Inherited from Control.
ResumeLayout(Boolean)	Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests. Inherited from Control.
RtlTranslateAlignment(ContentAlignment) protected	Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text. Inherited from Control.
RtlTranslateAlignment(HorizontalAlignment) protected	Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text. Inherited from Control.
RtlTranslateAlignment(LeftRightAlignment) protected	Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text. Inherited from Control.
RtlTranslateContent(ContentAlignment) protected	Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text. Inherited from Control.
RtlTranslateHorizontal(HorizontalAlignment) protected	Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text. Inherited from Control.
RtlTranslateLeftRight(LeftRightAlignment) protected	Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text. Inherited from Control.
Scale(SizeF)	Scales the control and all child controls by the specified scaling factor. Inherited from Control.
Scale(Single, Single)	Scales the entire control and any child controls. Inherited from Control.
Scale(Single)	Scales the control and any child controls. Inherited from Control.
ScrollControlIntoView(Control)	Scrolls the specified child control into view on an auto-scroll enabled control. Inherited from ScrollableControl.
ScrollToControl(Control) protected	Calculates the scroll offset to the specified child control. Inherited from ScrollableControl.
Select()	Activates the control. Inherited from Control.
Select(Boolean, Boolean) protected	Activates a child control. Optionally specifies the direction in the tab order to select the control from. Inherited from ContainerControl.
SelectNextControl(Control, Boolean, Boolean, Boolean, Boolean)	Activates the next control. Inherited from Control.
SendToBack()	Sends the control to the back of the z-order. Inherited from Control.
SetAutoScrollMargin(Int32, Int32)	Sets the size of the auto-scroll margins. Inherited from ScrollableControl.
SetAutoSizeMode(AutoSizeMode) protected	Sets a value indicating how a control will behave when its AutoSize property is enabled. Inherited from Control.
SetBounds(Int32, Int32, Int32, Int32, BoundsSpecified)	Sets the specified bounds of the control to the specified location and size. Inherited from Control.
SetBounds(Int32, Int32, Int32, Int32)	Sets the bounds of the control to the specified location and size. Inherited from Control.
SetClientSizeCore(Int32, Int32) protected	Sets the size of the client area of the control. Inherited from Control.
SetDisplayRectLocation(Int32, Int32) protected	Positions the display window to the specified value. Inherited from ScrollableControl.
SetScrollState(Int32, Boolean) protected	Sets the specified scroll state flag. Inherited from ScrollableControl.
SetStyle(ControlStyles, Boolean) protected	Sets a specified ControlStyles flag to either true or false. Inherited from Control.
SetTopLevel(Boolean) protected	Sets the control as the top-level control. Inherited from Control.
SetVisibleCore(Boolean) protected	Sets the control to the specified visible state. Inherited from Control.
Show()	Displays and activates the panel. Inherited from DockPanel.
ShowSliding()	Shows the auto-hidden dock panel using a sliding animation effect. Inherited from DockPanel.
SizeFromClientSize(Size) protected	Determines the size of the entire control from the height and width of its client area. Inherited from Control.
SuspendLayout()	Temporarily suspends the layout logic for the control. Inherited from Control.
IContainerControl.ActivateControl(Control)	Activates the specified control. Inherited from ContainerControl.
IDropTarget.OnDragDrop(DragEventArgs)	Raises the DragDrop event. Inherited from Control.
IDropTarget.OnDragEnter(DragEventArgs)	Raises the DragEnter event. Inherited from Control.
IDropTarget.OnDragLeave(EventArgs)	Raises the DragLeave event. Inherited from Control.
IDropTarget.OnDragOver(DragEventArgs)	Raises the DragOver event. Inherited from Control.
ToString()	Returns a String containing the name of the Component, if any. This method should not be overridden. Inherited from Component.
Update()	Causes the control to redraw the invalidated regions within its client area. Inherited from Control.
UpdateBounds() protected	Updates the bounds of the control with the current size and location. Inherited from Control.
UpdateBounds(Int32, Int32, Int32, Int32, Int32, Int32) protected	Updates the bounds of the control with the specified size, location, and client size. Inherited from Control.
UpdateBounds(Int32, Int32, Int32, Int32) protected	Updates the bounds of the control with the specified size and location. Inherited from Control.
UpdateDefaultButton() protected	When overridden by a derived class, updates which button is the default button. Inherited from ContainerControl.
UpdateStyles() protected	Forces the assigned styles to be reapplied to the control. Inherited from Control.
UpdateZOrder() protected	Updates the control in its parent’s z-order. Inherited from Control.
Validate()	Verifies the value of the control losing focus by causing the Validating and Validated events to occur, in that order. Inherited from ContainerControl.
Validate(Boolean)	Verifies the value of the control that is losing focus; conditionally dependent on whether automatic validation is turned on. Inherited from ContainerControl.
ValidateChildren()	Causes all of the child controls within a control that support validation to validate their data. Inherited from ContainerControl.
ValidateChildren(ValidationConstraints)	Causes all of the child controls within a control that support validation to validate their data. Inherited from ContainerControl.