Control Class

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Source:

Control.cs

Defines the base class for controls, which are components with visual representation.

public ref class Control : System::ComponentModel::Component, IDisposable, System::ComponentModel::ISynchronizeInvoke, System::Windows::Forms::IBindableComponent, System::Windows::Forms::IDropTarget, System::Windows::Forms::IWin32Window

public class Control : System.ComponentModel.Component, IDisposable, System.ComponentModel.ISynchronizeInvoke, System.Windows.Forms.IBindableComponent, System.Windows.Forms.IDropTarget, System.Windows.Forms.IWin32Window

type Control = class
    inherit Component
    interface IOleControl.Interface
    interface IOleObject.Interface
    interface IOleInPlaceObject.Interface
    interface IOleWindow.Interface
    interface IOleInPlaceActiveObject.Interface
    interface IViewObject.Interface
    interface IViewObject2.Interface
    interface IPersist.Interface
    interface IPersistStreamInit.Interface
    interface IPersistPropertyBag.Interface
    interface IPersistStorage.Interface
    interface IQuickActivate.Interface
    interface IDropTarget
    interface ISynchronizeInvoke
    interface IWin32Window
    interface IComponent
    interface IDisposable
    interface IBindableComponent

Public Class Control
Inherits Component
Implements IBindableComponent, IDisposable, IDropTarget, ISynchronizeInvoke, IWin32Window

Inheritance

Object

MarshalByRefObject

Component

Control

Derived

System.Windows.Forms.AxHost

System.Windows.Forms.ButtonBase

System.Windows.Forms.DataGrid

System.Windows.Forms.DataGridView

System.Windows.Forms.DataVisualization.Charting.Chart

System.Windows.Forms.DateTimePicker

System.Windows.Forms.GroupBox

System.Windows.Forms.Integration.ElementHost

System.Windows.Forms.Label

System.Windows.Forms.ListControl

System.Windows.Forms.ListView

System.Windows.Forms.MdiClient

System.Windows.Forms.MonthCalendar

System.Windows.Forms.PictureBox

System.Windows.Forms.PrintPreviewControl

System.Windows.Forms.ProgressBar

System.Windows.Forms.ScrollableControl

System.Windows.Forms.ScrollBar

System.Windows.Forms.Splitter

System.Windows.Forms.StatusBar

System.Windows.Forms.TabControl

System.Windows.Forms.TextBoxBase

System.Windows.Forms.ToolBar

System.Windows.Forms.TrackBar

System.Windows.Forms.TreeView

System.Windows.Forms.WebBrowserBase

Implements

ISynchronizeInvoke IWin32Window IComponent IDisposable IBindableComponent IDropTarget

Remarks

To create your own control class, inherit from the UserControl, Control classes, or from the other Windows Forms provided controls. For more information about authoring custom controls, see Developing Custom Windows Forms Controls with the .NET Framework.

The Control class implements very basic functionality required by classes that display information to the user. It handles user input through the keyboard and pointing devices. It handles message routing and security. It defines the bounds of a control (its position and size), although it does not implement painting. It provides a window handle (hWnd).

Windows Forms controls use ambient properties so child controls can appear like their surrounding environment. An ambient property is a control property that, if not set, is retrieved from the parent control. If the control does not have a Parent, and the property is not set, the control attempts to determine the value of the ambient property through the Site property. If the control is not sited, if the site does not support ambient properties, or if the property is not set on the AmbientProperties, the control uses its own default values. Typically, an ambient property represents a characteristic of a control, such as BackColor, that is communicated to a child control. For example, a Button will have the same BackColor as its parent Form by default. Ambient properties provided by the Control class include: Cursor, Font, BackColor, ForeColor, and RightToLeft.

Note

To make your Windows Forms application support visual styles, be sure to set the FlatStyle property to System and include a manifest with your executable. A manifest is an XML file that is included either as a resource within your application executable or as a separate file that resides in the same directory as the executable file. For an example of a manifest, see the Example section of the FlatStyle enumeration. For more information about using visual styles, see Visual Styles.

Windows Forms has accessibility support built in, and provides information about your application that enables it to work with accessibility client applications such as screen enlarger and reviewer utilities, voice input utilities, on-screen keyboards, alternative input devices, and keyboard enhancement utilities. Sometimes you will want to provide additional information to accessibility client applications. There are two ways of providing this additional information. You can set the AccessibleName, AccessibleDescription, AccessibleDefaultActionDescription, and AccessibleRole property values, which will be reported to accessibility client applications. This method is typically used to provide limited accessibility information for existing controls. Alternatively, you can write your own class deriving from the AccessibleObject or Control.ControlAccessibleObject classes, providing as much accessibility information as needed.

Note

To maintain better performance, do not set the size of a control in its constructor. The preferred method is to override the DefaultSize property.

Note

Do not add data bindings for a Control in its constructor. Doing so will cause errors in code generation and can cause unwanted behavior.

The majority of the controls in the System.Windows.Forms namespace use the underlying Windows common control as a base to build on. For more information about the Windows common controls, see General Control Reference.

To identify Windows Forms controls from a separate process, use a standard SendMessage call to pass the WM_GETCONTROLNAME message. WM_GETCONTROLNAME is independent of the language and Windows hierarchy. For more information, see the "Recommended Solution for Windows Forms" topic in Automating Windows Forms.

Use the InvokeRequired property to synchronize access to the control from multiple threads. For more information about multithreaded Windows Forms controls, see How to: Make Thread-Safe Calls to Windows Forms Controls.

Constructors

Control()	Initializes a new instance of the Control class with default settings.
Control(Control, String, Int32, Int32, Int32, Int32)	Initializes a new instance of the Control class as a child control, with specific text, size, and location.
Control(Control, String)	Initializes a new instance of the Control class as a child control, with specific text.
Control(String, Int32, Int32, Int32, Int32)	Initializes a new instance of the Control class with specific text, size, and location.
Control(String)	Initializes a new instance of the Control class with specific text.

Properties

AccessibilityObject	Gets the AccessibleObject assigned to the control.
AccessibleDefaultActionDescription	Gets or sets the default action description of the control for use by accessibility client applications.
AccessibleDescription	Gets or sets the description of the control used by accessibility client applications.
AccessibleName	Gets or sets the name of the control used by accessibility client applications.
AccessibleRole	Gets or sets the accessible role of the control.
AllowDrop	Gets or sets a value indicating whether the control can accept data that the user drags onto it.
Anchor	Gets or sets the edges of the container to which a control is bound and determines how a control is resized with its parent.
AutoScrollOffset	Gets or sets where this control is scrolled to in ScrollControlIntoView(Control).
AutoSize	This property is not relevant for this class.
BackColor	Gets or sets the background color for the control.
BackgroundImage	Gets or sets the background image displayed in the control.
BackgroundImageLayout	Gets or sets the background image layout as defined in the ImageLayout enumeration.
BindingContext	Gets or sets the BindingContext for the control.
Bottom	Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.
Bounds	Gets or sets the size and location of the control including its nonclient elements, in pixels, relative to the parent control.
CanEnableIme	Gets a value indicating whether the ImeMode property can be set to an active value, to enable IME support.
CanFocus	Gets a value indicating whether the control can receive focus.
CanRaiseEvents	Determines if events can be raised on the control.
CanSelect	Gets a value indicating whether the control can be selected.
Capture	Gets or sets a value indicating whether the control has captured the mouse.
CausesValidation	Gets or sets a value indicating whether the control causes validation to be performed on any controls that require validation when it receives focus.
CheckForIllegalCrossThreadCalls	Gets or sets a value indicating whether to catch calls on the wrong thread that access a control's Handle property when an application is being debugged.
ClientRectangle	Gets the rectangle that represents the client area of the control.
ClientSize	Gets or sets the height and width of the client area of the control.
CompanyName	Gets the name of the company or creator of the application containing the control.
Container	Gets the IContainer that contains the Component. (Inherited from Component)
ContainsFocus	Gets a value indicating whether the control, or one of its child controls, currently has the input focus.
ContextMenuStrip	Gets or sets the ContextMenuStrip associated with this control.
Controls	Gets the collection of controls contained within the control.
Created	Gets a value indicating whether the control has been created.
CreateParams	Gets the required creation parameters when the control handle is created.
Cursor	Gets or sets the cursor that is displayed when the mouse pointer is over the control.
DataBindings	Gets the data bindings for the control.
DataContext	Gets or sets the data context for the purpose of data binding. This is an ambient property.
DefaultBackColor	Gets the default background color of the control.
DefaultCursor	Gets or sets the default cursor for the control.
DefaultFont	Gets the default font of the control.
DefaultForeColor	Gets the default foreground color of the control.
DefaultImeMode	Gets the default Input Method Editor (IME) mode supported by the control.
DefaultMargin	Gets the space, in pixels, that is specified by default between controls.
DefaultMaximumSize	Gets the length and height, in pixels, that is specified as the default maximum size of a control.
DefaultMinimumSize	Gets the length and height, in pixels, that is specified as the default minimum size of a control.
DefaultPadding	Gets the default internal spacing, in pixels, of the contents of a control.
DefaultSize	Gets the default size of the control.
DesignMode	Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component)
DeviceDpi	Gets the DPI value for the display device where the control is currently being displayed.
DisplayRectangle	Gets the rectangle that represents the display area of the control.
Disposing	Gets a value indicating whether the base Control class is in the process of disposing.
Dock	Gets or sets which control borders are docked to its parent control and determines how a control is resized with its parent.
DoubleBuffered	Gets or sets a value indicating whether this control should redraw its surface using a secondary buffer to reduce or prevent flicker.
Enabled	Gets or sets a value indicating whether the control can respond to user interaction.
Events	Gets the list of event handlers that are attached to this Component. (Inherited from Component)
Focused	Gets a value indicating whether the control has input focus.
Font	Gets or sets the font of the text displayed by the control.
FontHeight	Gets or sets the height of the font of the control.
ForeColor	Gets or sets the foreground color of the control.
Handle	Gets the window handle that the control is bound to.
HasChildren	Gets a value indicating whether the control contains one or more child controls.
Height	Gets or sets the height of the control.
ImeMode	Gets or sets the Input Method Editor (IME) mode of the control.
ImeModeBase	Gets or sets the IME mode of a control.
InvokeRequired	Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on.
IsAccessible	Gets or sets a value indicating whether the control is visible to accessibility applications.
IsAncestorSiteInDesignMode	Indicates if one of the Ancestors of this control is sited and that site in DesignMode. This property is read-only.
IsDisposed	Gets a value indicating whether the control has been disposed of.
IsHandleCreated	Gets a value indicating whether the control has a handle associated with it.
IsMirrored	Gets a value indicating whether the control is mirrored.
LayoutEngine	Gets a cached instance of the control's layout engine.
Left	Gets or sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area.
Location	Gets or sets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container.
Margin	Gets or sets the space between controls.
MaximumSize	Gets or sets the size that is the upper limit that GetPreferredSize(Size) can specify.
MinimumSize	Gets or sets the size that is the lower limit that GetPreferredSize(Size) can specify.
ModifierKeys	Gets a value indicating which of the modifier keys (SHIFT, CTRL, and ALT) is in a pressed state.
MouseButtons	Gets a value indicating which of the mouse buttons is in a pressed state.
MousePosition	Gets the position of the mouse cursor in screen coordinates.
Name	Gets or sets the name of the control.
Padding	Gets or sets padding within the control.
Parent	Gets or sets the parent container of the control.
PreferredSize	Gets the size of a rectangular area into which the control can fit.
ProductName	Gets the product name of the assembly containing the control.
ProductVersion	Gets the version of the assembly containing the control.
PropagatingImeMode	Gets an object that represents a propagating IME mode.
RecreatingHandle	Gets a value indicating whether the control is currently re-creating its handle.
Region	Gets or sets the window region associated with the control.
RenderRightToLeft	Obsolete. This property is now obsolete.
ResizeRedraw	Gets or sets a value indicating whether the control redraws itself when resized.
Right	Gets the distance, in pixels, between the right edge of the control and the left edge of its container's client area.
RightToLeft	Gets or sets a value indicating whether control's elements are aligned to support locales using right-to-left fonts.
ScaleChildren	Gets a value that determines the scaling of child controls.
ShowFocusCues	Gets a value indicating whether the control should display focus rectangles.
ShowKeyboardCues	Gets a value indicating whether the user interface is in the appropriate state to show or hide keyboard accelerators.
Site	Gets or sets the site of the control.
Size	Gets or sets the height and width of the control.
TabIndex	Gets or sets the tab order of the control within its container.
TabStop	Gets or sets a value indicating whether the user can give the focus to this control using the TAB key.
Tag	Gets or sets the object that contains data about the control.
Text	Gets or sets the text associated with this control.
Top	Gets or sets the distance, in pixels, between the top edge of the control and the top edge of its container's client area.
TopLevelControl	Gets the parent control that is not parented by another Windows Forms control. Typically, this is the outermost Form that the control is contained in.
UseWaitCursor	Gets or sets a value indicating whether to use the wait cursor for the current control and all child controls.
Visible	Gets or sets a value indicating whether the control and all its child controls are displayed.
Width	Gets or sets the width of the control.
WindowTarget	This property is not relevant for this class.

Methods

AccessibilityNotifyClients(AccessibleEvents, Int32, Int32)	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control .
AccessibilityNotifyClients(AccessibleEvents, Int32)	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control.
BeginInvoke(Action)	Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on.
BeginInvoke(Delegate, Object[])	Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on.
BeginInvoke(Delegate)	Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on.
BringToFront()	Brings the control to the front of the z-order.
Contains(Control)	Retrieves a value indicating whether the specified control is a child of the control.
CreateAccessibilityInstance()	Creates a new accessibility object for the control.
CreateControl()	Forces the creation of the visible control, including the creation of the handle and any visible child controls.
CreateControlsInstance()	Creates a new instance of the control collection for the control.
CreateGraphics()	Creates the Graphics for the control.
CreateHandle()	Creates a handle for the 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)	Sends the specified message to the default window procedure.
DestroyHandle()	Destroys the handle associated with the control.
Dispose()	Releases all resources used by the Component. (Inherited from Component)
Dispose(Boolean)	Releases the unmanaged resources used by the Control and its child controls and optionally releases the managed resources.
DoDragDrop(Object, DragDropEffects, Bitmap, Point, Boolean)	Begins a drag operation.
DoDragDrop(Object, DragDropEffects)	Begins a drag-and-drop operation.
DrawToBitmap(Bitmap, Rectangle)	Supports rendering to the specified bitmap.
EndInvoke(IAsyncResult)	Retrieves the return value of the asynchronous operation represented by the IAsyncResult passed.
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.
Focus()	Sets input focus to the control.
FromChildHandle(IntPtr)	Retrieves the control that contains the specified handle.
FromHandle(IntPtr)	Returns the control that is currently associated with the specified handle.
GetAccessibilityObjectById(Int32)	Retrieves the specified AccessibleObject.
GetAutoSizeMode()	Retrieves a value indicating how a control will behave when its AutoSize property is enabled.
GetChildAtPoint(Point, GetChildAtPointSkip)	Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type.
GetChildAtPoint(Point)	Retrieves the child control that is located at the specified coordinates.
GetContainerControl()	Returns the next ContainerControl up the control's chain of parent controls.
GetHashCode()	Serves as the default hash function. (Inherited from Object)
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.
GetPreferredSize(Size)	Retrieves the size of a rectangular area into which a control can be fitted.
GetScaledBounds(Rectangle, SizeF, BoundsSpecified)	Retrieves the bounds within which the control is scaled.
GetService(Type)	Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component)
GetStyle(ControlStyles)	Retrieves the value of the specified control style bit for the control.
GetTopLevel()	Determines if the control is a top-level control.
GetType()	Gets the Type of the current instance. (Inherited from Object)
Hide()	Conceals the control from the user.
InitializeLifetimeService()	Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject)
InitLayout()	Called after the control has been added to another container.
Invalidate()	Invalidates the entire surface of the control and causes the control to be redrawn.
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.
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.
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.
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.
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.
Invoke(Action)	Executes the specified delegate on the thread that owns the control's underlying window handle.
Invoke(Delegate, Object[])	Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments.
Invoke(Delegate)	Executes the specified delegate on the thread that owns the control's underlying window handle.
Invoke<T>(Func<T>)	Executes the specified delegate on the thread that owns the control's underlying window handle.
InvokeAsync(Action, CancellationToken)	Invokes the specified synchronous callback asynchronously on the thread that owns the control's handle.
InvokeAsync(Func<CancellationToken,ValueTask>, CancellationToken)	Executes the specified asynchronous callback on the thread that owns the control's handle asynchronously.
InvokeAsync<T>(Func<CancellationToken,ValueTask<T>>, CancellationToken)	Executes the specified asynchronous callback on the thread that owns the control's handle.
InvokeAsync<T>(Func<T>, CancellationToken)	Invokes the specified synchronous callback asynchronously on the thread that owns the control's handle.
InvokeGotFocus(Control, EventArgs)	Raises the GotFocus event for the specified control.
InvokeLostFocus(Control, EventArgs)	Raises the LostFocus event for the specified control.
InvokeOnClick(Control, EventArgs)	Raises the Click event for the specified control.
InvokePaint(Control, PaintEventArgs)	Raises the Paint event for the specified control.
InvokePaintBackground(Control, PaintEventArgs)	Raises the PaintBackground event for the specified control.
IsInputChar(Char)	Determines if a character is an input character that the control recognizes.
IsInputKey(Keys)	Determines whether the specified key is a regular input key or a special key that requires preprocessing.
IsKeyLocked(Keys)	Determines whether the CAPS LOCK, NUM LOCK, or SCROLL LOCK key is in effect.
IsMnemonic(Char, String)	Determines if the specified character is the mnemonic character assigned to the control in the specified string.
LogicalToDeviceUnits(Int32)	Converts a Logical DPI value to its equivalent DeviceUnit DPI value.
LogicalToDeviceUnits(Size)	Transforms a size from logical to device units by scaling it for the current DPI and rounding down to the nearest integer value for width and height.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
MemberwiseClone(Boolean)	Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject)
NotifyInvalidate(Rectangle)	Raises the Invalidated event with a specified region of the control to invalidate.
OnAutoSizeChanged(EventArgs)	Raises the AutoSizeChanged event.
OnBackColorChanged(EventArgs)	Raises the BackColorChanged event.
OnBackgroundImageChanged(EventArgs)	Raises the BackgroundImageChanged event.
OnBackgroundImageLayoutChanged(EventArgs)	Raises the BackgroundImageLayoutChanged event.
OnBindingContextChanged(EventArgs)	Raises the BindingContextChanged event.
OnCausesValidationChanged(EventArgs)	Raises the CausesValidationChanged event.
OnChangeUICues(UICuesEventArgs)	Raises the ChangeUICues event.
OnClick(EventArgs)	Raises the Click event.
OnClientSizeChanged(EventArgs)	Raises the ClientSizeChanged event.
OnContextMenuStripChanged(EventArgs)	Raises the ContextMenuStripChanged event.
OnControlAdded(ControlEventArgs)	Raises the ControlAdded event.
OnControlRemoved(ControlEventArgs)	Raises the ControlRemoved event.
OnCreateControl()	Raises the CreateControl() method.
OnCursorChanged(EventArgs)	Raises the CursorChanged event.
OnDataContextChanged(EventArgs)
OnDockChanged(EventArgs)	Raises the DockChanged event.
OnDoubleClick(EventArgs)	Raises the DoubleClick event.
OnDpiChangedAfterParent(EventArgs)	Raises the DpiChangedAfterParent event.
OnDpiChangedBeforeParent(EventArgs)	Raises the DpiChangedBeforeParent event.
OnDragDrop(DragEventArgs)	Raises the DragDrop event.
OnDragEnter(DragEventArgs)	Raises the DragEnter event.
OnDragLeave(EventArgs)	Raises the DragLeave event.
OnDragOver(DragEventArgs)	Raises the DragOver event.
OnEnabledChanged(EventArgs)	Raises the EnabledChanged event.
OnEnter(EventArgs)	Raises the Enter event.
OnFontChanged(EventArgs)	Raises the FontChanged event.
OnForeColorChanged(EventArgs)	Raises the ForeColorChanged event.
OnGiveFeedback(GiveFeedbackEventArgs)	Raises the GiveFeedback event.
OnGotFocus(EventArgs)	Raises the GotFocus event.
OnHandleCreated(EventArgs)	Raises the HandleCreated event.
OnHandleDestroyed(EventArgs)	Raises the HandleDestroyed event.
OnHelpRequested(HelpEventArgs)	Raises the HelpRequested event.
OnImeModeChanged(EventArgs)	Raises the ImeModeChanged event.
OnInvalidated(InvalidateEventArgs)	Raises the Invalidated event.
OnKeyDown(KeyEventArgs)	Raises the KeyDown event.
OnKeyPress(KeyPressEventArgs)	Raises the KeyPress event.
OnKeyUp(KeyEventArgs)	Raises the KeyUp event.
OnLayout(LayoutEventArgs)	Raises the Layout event.
OnLeave(EventArgs)	Raises the Leave event.
OnLocationChanged(EventArgs)	Raises the LocationChanged event.
OnLostFocus(EventArgs)	Raises the LostFocus event.
OnMarginChanged(EventArgs)	Raises the MarginChanged event.
OnMouseCaptureChanged(EventArgs)	Raises the MouseCaptureChanged event.
OnMouseClick(MouseEventArgs)	Raises the MouseClick event.
OnMouseDoubleClick(MouseEventArgs)	Raises the MouseDoubleClick event.
OnMouseDown(MouseEventArgs)	Raises the MouseDown event.
OnMouseEnter(EventArgs)	Raises the MouseEnter event.
OnMouseHover(EventArgs)	Raises the MouseHover event.
OnMouseLeave(EventArgs)	Raises the MouseLeave event.
OnMouseMove(MouseEventArgs)	Raises the MouseMove event.
OnMouseUp(MouseEventArgs)	Raises the MouseUp event.
OnMouseWheel(MouseEventArgs)	Raises the MouseWheel event.
OnMove(EventArgs)	Raises the Move event.
OnNotifyMessage(Message)	Notifies the control of Windows messages.
OnPaddingChanged(EventArgs)	Raises the PaddingChanged event.
OnPaint(PaintEventArgs)	Raises the Paint event.
OnPaintBackground(PaintEventArgs)	Paints the background of the control.
OnParentBackColorChanged(EventArgs)	Raises the BackColorChanged event when the BackColor property value of the control's container changes.
OnParentBackgroundImageChanged(EventArgs)	Raises the BackgroundImageChanged event when the BackgroundImage property value of the control's container changes.
OnParentBindingContextChanged(EventArgs)	Raises the BindingContextChanged event when the BindingContext property value of the control's container changes.
OnParentChanged(EventArgs)	Raises the ParentChanged event.
OnParentCursorChanged(EventArgs)	Raises the CursorChanged event.
OnParentDataContextChanged(EventArgs)
OnParentEnabledChanged(EventArgs)	Raises the EnabledChanged event when the Enabled property value of the control's container changes.
OnParentFontChanged(EventArgs)	Raises the FontChanged event when the Font property value of the control's container changes.
OnParentForeColorChanged(EventArgs)	Raises the ForeColorChanged event when the ForeColor property value of the control's container changes.
OnParentRightToLeftChanged(EventArgs)	Raises the RightToLeftChanged event when the RightToLeft property value of the control's container changes.
OnParentVisibleChanged(EventArgs)	Raises the VisibleChanged event when the Visible property value of the control's container changes.
OnPreviewKeyDown(PreviewKeyDownEventArgs)	Raises the PreviewKeyDown event.
OnPrint(PaintEventArgs)	Raises the Paint event.
OnQueryContinueDrag(QueryContinueDragEventArgs)	Raises the QueryContinueDrag event.
OnRegionChanged(EventArgs)	Raises the RegionChanged event.
OnResize(EventArgs)	Raises the Resize event.
OnRightToLeftChanged(EventArgs)	Raises the RightToLeftChanged event.
OnSizeChanged(EventArgs)	Raises the SizeChanged event.
OnStyleChanged(EventArgs)	Raises the StyleChanged event.
OnSystemColorsChanged(EventArgs)	Raises the SystemColorsChanged event.
OnTabIndexChanged(EventArgs)	Raises the TabIndexChanged event.
OnTabStopChanged(EventArgs)	Raises the TabStopChanged event.
OnTextChanged(EventArgs)	Raises the TextChanged event.
OnValidated(EventArgs)	Raises the Validated event.
OnValidating(CancelEventArgs)	Raises the Validating event.
OnVisibleChanged(EventArgs)	Raises the VisibleChanged event.
PerformLayout()	Forces the control to apply layout logic to all its child controls.
PerformLayout(Control, String)	Forces the control to apply layout logic to all its child controls.
PointToClient(Point)	Computes the location of the specified screen point into client coordinates.
PointToScreen(Point)	Computes the location of the specified client point into screen coordinates.
PreProcessControlMessage(Message)	Preprocesses keyboard or input messages within the message loop before they are dispatched.
PreProcessMessage(Message)	Preprocesses keyboard or input messages within the message loop before they are dispatched.
ProcessCmdKey(Message, Keys)	Processes a command key.
ProcessDialogChar(Char)	Processes a dialog character.
ProcessDialogKey(Keys)	Processes a dialog key.
ProcessKeyEventArgs(Message)	Processes a key message and generates the appropriate control events.
ProcessKeyMessage(Message)	Processes a keyboard message.
ProcessKeyPreview(Message)	Previews a keyboard message.
ProcessMnemonic(Char)	Processes a mnemonic character.
RaiseDragEvent(Object, DragEventArgs)	Raises the appropriate drag event.
RaiseKeyEvent(Object, KeyEventArgs)	Raises the appropriate key event.
RaiseMouseEvent(Object, MouseEventArgs)	Raises the appropriate mouse event.
RaisePaintEvent(Object, PaintEventArgs)	Raises the appropriate paint event.
RecreateHandle()	Forces the re-creation of the handle for the control.
RectangleToClient(Rectangle)	Computes the size and location of the specified screen rectangle in client coordinates.
RectangleToScreen(Rectangle)	Computes the size and location of the specified client rectangle in screen coordinates.
ReflectMessage(IntPtr, Message)	Reflects the specified message to the control that is bound to the specified handle.
Refresh()	Forces the control to invalidate its client area and immediately redraw itself and any child controls.
RescaleConstantsForDpi(Int32, Int32)	Provides constants for rescaling the control when a DPI change occurs.
ResetBackColor()	Resets the BackColor property to its default value.
ResetBindings()	Causes a control bound to the BindingSource to reread all the items in the list and refresh their displayed values.
ResetCursor()	Resets the Cursor property to its default value.
ResetFont()	Resets the Font property to its default value.
ResetForeColor()	Resets the ForeColor property to its default value.
ResetImeMode()	Resets the ImeMode property to its default value.
ResetMouseEventArgs()	Resets the control to handle the MouseLeave event.
ResetRightToLeft()	Resets the RightToLeft property to its default value.
ResetText()	Resets the Text property to its default value (Empty).
ResumeLayout()	Resumes usual layout logic.
ResumeLayout(Boolean)	Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests.
RtlTranslateAlignment(ContentAlignment)	Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text.
RtlTranslateAlignment(HorizontalAlignment)	Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text.
RtlTranslateAlignment(LeftRightAlignment)	Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text.
RtlTranslateContent(ContentAlignment)	Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text.
RtlTranslateHorizontal(HorizontalAlignment)	Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text.
RtlTranslateLeftRight(LeftRightAlignment)	Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text.
Scale(Single, Single)	Obsolete. Scales the entire control and any child controls.
Scale(Single)	Obsolete. Scales the control and any child controls.
Scale(SizeF)	Scales the control and all child controls by the specified scaling factor.
ScaleBitmapLogicalToDevice(Bitmap)	Scales a logical bitmap value to it's equivalent device unit value when a DPI change occurs.
ScaleControl(SizeF, BoundsSpecified)	Scales a control's location, size, padding and margin.
ScaleCore(Single, Single)	This method is not relevant for this class.
Select()	Activates the control.
Select(Boolean, Boolean)	Activates a child control. Optionally specifies the direction in the tab order to select the control from.
SelectNextControl(Control, Boolean, Boolean, Boolean, Boolean)	Activates the next control.
SendToBack()	Sends the control to the back of the z-order.
SetAutoSizeMode(AutoSizeMode)	Sets a value indicating how a control will behave when its AutoSize property is enabled.
SetBounds(Int32, Int32, Int32, Int32, BoundsSpecified)	Sets the specified bounds of the control to the specified location and size.
SetBounds(Int32, Int32, Int32, Int32)	Sets the bounds of the control to the specified location and size.
SetBoundsCore(Int32, Int32, Int32, Int32, BoundsSpecified)	Performs the work of setting the specified bounds of this control.
SetClientSizeCore(Int32, Int32)	Sets the size of the client area of the control.
SetStyle(ControlStyles, Boolean)	Sets a specified ControlStyles flag to either true or false.
SetTopLevel(Boolean)	Sets the control as the top-level control.
SetVisibleCore(Boolean)	Sets the control to the specified visible state.
Show()	Displays the control to the user.
SizeFromClientSize(Size)	Determines the size of the entire control from the height and width of its client area.
SuspendLayout()	Temporarily suspends the layout logic for the 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.
UpdateBounds()	Updates the bounds of the control with the current size and location.
UpdateBounds(Int32, Int32, Int32, Int32, Int32, Int32)	Updates the bounds of the control with the specified size, location, and client size.
UpdateBounds(Int32, Int32, Int32, Int32)	Updates the bounds of the control with the specified size and location.
UpdateStyles()	Forces the assigned styles to be reapplied to the control.
UpdateZOrder()	Updates the control in its parent's z-order.
WndProc(Message)	Processes Windows messages.

Events

AutoSizeChanged	This event is not relevant for this class.
BackColorChanged	Occurs when the value of the BackColor property changes.
BackgroundImageChanged	Occurs when the value of the BackgroundImage property changes.
BackgroundImageLayoutChanged	Occurs when the BackgroundImageLayout property changes.
BindingContextChanged	Occurs when the value of the BindingContext property changes.
CausesValidationChanged	Occurs when the value of the CausesValidation property changes.
ChangeUICues	Occurs when the focus or keyboard user interface (UI) cues change.
Click	Occurs when the control is clicked.
ClientSizeChanged	Occurs when the value of the ClientSize property changes.
ContextMenuStripChanged	Occurs when the value of the ContextMenuStrip property changes.
ControlAdded	Occurs when a new control is added to the Control.ControlCollection.
ControlRemoved	Occurs when a control is removed from the Control.ControlCollection.
CursorChanged	Occurs when the value of the Cursor property changes.
DataContextChanged	Occurs when the value of the DataContext property changes.
Disposed	Occurs when the component is disposed by a call to the Dispose() method. (Inherited from Component)
DockChanged	Occurs when the value of the Dock property changes.
DoubleClick	Occurs when the control is double-clicked.
DpiChangedAfterParent	Occurs when the DPI setting for a control is changed programmatically after the DPI of its parent control or form has changed.
DpiChangedBeforeParent	Occurs when the DPI setting for a control is changed programmatically before a DPI change event for its parent control or form has occurred.
DragDrop	Occurs when a drag-and-drop operation is completed.
DragEnter	Occurs when an object is dragged into the control's bounds.
DragLeave	Occurs when an object is dragged out of the control's bounds.
DragOver	Occurs when an object is dragged over the control's bounds.
EnabledChanged	Occurs when the Enabled property value has changed.
Enter	Occurs when the control is entered.
FontChanged	Occurs when the Font property value changes.
ForeColorChanged	Occurs when the ForeColor property value changes.
GiveFeedback	Occurs during a drag operation.
GotFocus	Occurs when the control receives focus.
HandleCreated	Occurs when a handle is created for the control.
HandleDestroyed	Occurs when the control's handle is in the process of being destroyed.
HelpRequested	Occurs when the user requests help for a control.
ImeModeChanged	Occurs when the ImeMode property has changed.
Invalidated	Occurs when a control's display requires redrawing.
KeyDown	Occurs when a key is pressed while the control has focus.
KeyPress	Occurs when a character, space, or backspace key is pressed while the control has focus.
KeyUp	Occurs when a key is released while the control has focus.
Layout	Occurs when a control should reposition its child controls.
Leave	Occurs when the input focus leaves the control.
LocationChanged	Occurs when the Location property value has changed.
LostFocus	Occurs when the control loses focus.
MarginChanged	Occurs when the control's margin changes.
MouseCaptureChanged	Occurs when the control loses mouse capture.
MouseClick	Occurs when the control is clicked by the mouse.
MouseDoubleClick	Occurs when the control is double clicked by the mouse.
MouseDown	Occurs when the mouse pointer is over the control and a mouse button is pressed.
MouseEnter	Occurs when the mouse pointer enters the control.
MouseHover	Occurs when the mouse pointer rests on the control.
MouseLeave	Occurs when the mouse pointer leaves the control.
MouseMove	Occurs when the mouse pointer is moved over the control.
MouseUp	Occurs when the mouse pointer is over the control and a mouse button is released.
MouseWheel	Occurs when the mouse wheel moves while the control has focus.
Move	Occurs when the control is moved.
PaddingChanged	Occurs when the control's padding changes.
Paint	Occurs when the control is redrawn.
ParentChanged	Occurs when the Parent property value changes.
PreviewKeyDown	Occurs before the KeyDown event when a key is pressed while focus is on this control.
QueryAccessibilityHelp	Occurs when AccessibleObject is providing help to accessibility applications.
QueryContinueDrag	Occurs during a drag-and-drop operation and enables the drag source to determine whether the drag-and-drop operation should be canceled.
RegionChanged	Occurs when the value of the Region property changes.
Resize	Occurs when the control is resized.
RightToLeftChanged	Occurs when the RightToLeft property value changes.
SizeChanged	Occurs when the Size property value changes.
StyleChanged	Occurs when the control style changes.
SystemColorsChanged	Occurs when the system colors change.
TabIndexChanged	Occurs when the TabIndex property value changes.
TabStopChanged	Occurs when the TabStop property value changes.
TextChanged	Occurs when the Text property value changes.
Validated	Occurs when the control is finished validating.
Validating	Occurs when the control is validating.
VisibleChanged	Occurs when the Visible property value changes.

Explicit Interface Implementations

IDropTarget.OnDragDrop(DragEventArgs)	Raises the DragDrop event.
IDropTarget.OnDragEnter(DragEventArgs)	Raises the DragEnter event.
IDropTarget.OnDragLeave(EventArgs)	Raises the DragLeave event.
IDropTarget.OnDragOver(DragEventArgs)	Raises the DragOver event.

Thread Safety

Only the following members are thread safe: BeginInvoke(Delegate), EndInvoke(IAsyncResult), Invoke(Delegate), InvokeRequired, and CreateGraphics() if the handle for the control has already been created. Calling CreateGraphics() before the control's handle has been created on a background thread can cause illegal cross thread calls.

See also

• Form
• ScrollableControl
• ContainerControl
• Component