DropDownButton Events

The button that can be associated with a popup control or a context menu. It is possible to prevent the button from receiving focus on a click.

Name	Description
ArrowButtonClick	Allows you to respond to clicking the drop-down arrow.
AutoSizeChanged	This event is not relevant for this class. Inherited from Control.
BackColorChanged	This event is not supported by the BaseStyleControl class. Inherited from BaseStyleControl.
BackgroundImageChanged	Occurs when the value of the BackgroundImage property changes. Inherited from Control.
BackgroundImageLayoutChanged	Occurs when the BackgroundImageLayout property changes. Inherited from Control.
BindingContextChanged	Occurs when the value of the BindingContext property changes. Inherited from Control.
CausesValidationChanged	Occurs when the value of the CausesValidation property changes. Inherited from Control.
ChangeUICues	Occurs when the focus or keyboard user interface (UI) cues change. Inherited from Control.
Click	Occurs when the control is clicked. Inherited from Control.
ClientSizeChanged	Occurs when the value of the ClientSize property changes. Inherited from Control.
CommandCanExecuteChanged	Occurs when the CanExecute(Object) status of the Command has changed. Inherited from BaseButton.
CommandChanged	Occurs after the value of the Command property has changed. Inherited from BaseButton.
CommandParameterChanged	Occurs after the value of the CommandParameter property has changed. Inherited from BaseButton.
ContextMenuChanged	Occurs when the value of the ContextMenu property changes. Inherited from Control.
ContextMenuStripChanged	Occurs when the value of the ContextMenuStrip property changes. Inherited from Control.
ControlAdded	Occurs when a new control is added to the Control.ControlCollection. Inherited from Control.
ControlRemoved	Occurs when a control is removed from the Control.ControlCollection. Inherited from Control.
CursorChanged	Occurs when the value of the Cursor property changes. Inherited from Control.
CustomDraw	Allows you to draw the button manually. Inherited from SimpleButton.
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. Inherited from Control.
DoubleClick	Occurs when the control is double-clicked. Inherited from Control.
DragDrop	Occurs when a drag-and-drop operation is completed. Inherited from Control.
DragEnter	Occurs when an object is dragged into the control’s bounds. Inherited from Control.
DragLeave	Occurs when an object is dragged out of the control’s bounds. Inherited from Control.
DragOver	Occurs when an object is dragged over the control’s bounds. Inherited from Control.
EnabledChanged	Occurs when the Enabled property value has changed. Inherited from Control.
Enter	Occurs when the control is entered. Inherited from Control.
FontChanged	This event is not supported by the BaseStyleControl class. Inherited from BaseStyleControl.
ForeColorChanged	This event is not supported by the BaseStyleControl class. Inherited from BaseStyleControl.
GiveFeedback	Occurs during a drag operation. Inherited from Control.
GotFocus	Occurs when the control receives focus. Inherited from Control.
HandleCreated	Occurs when a handle is created for the control. Inherited from Control.
HandleDestroyed	Occurs when the control’s handle is in the process of being destroyed. Inherited from Control.
HelpRequested	Occurs when the user requests help for a control. Inherited from Control.
ImeModeChanged	Occurs when the ImeMode property has changed. Inherited from Control.
Invalidated	Occurs when a control’s display requires redrawing. Inherited from Control.
KeyDown	Occurs when a key is pressed while the control has focus. Inherited from Control.
KeyPress	Occurs when a character. space or backspace key is pressed while the control has focus. Inherited from Control.
KeyUp	Occurs when a key is released while the control has focus. Inherited from Control.
Layout	Occurs when a control should reposition its child controls. Inherited from Control.
Leave	Occurs when the input focus leaves the control. Inherited from Control.
LocationChanged	Occurs when the Location property value has changed. Inherited from Control.
LostFocus	Occurs when the control loses focus. Inherited from Control.
MarginChanged	Occurs when the control’s margin changes. Inherited from Control.
MouseCaptureChanged	Occurs when the control loses mouse capture. Inherited from Control.
MouseClick	Occurs when the control is clicked by the mouse. Inherited from Control.
MouseDoubleClick	Occurs when the control is double clicked by the mouse. Inherited from Control.
MouseDown	Occurs when the mouse pointer is over the control and a mouse button is pressed. Inherited from Control.
MouseEnter	Occurs when the mouse pointer enters the control. Inherited from Control.
MouseHover	Occurs when the mouse pointer rests on the control. Inherited from Control.
MouseLeave	Occurs when the mouse pointer leaves the control. Inherited from Control.
MouseMove	Occurs when the mouse pointer is moved over the control. Inherited from Control.
MouseUp	Occurs when the mouse pointer is over the control and a mouse button is released. Inherited from Control.
MouseWheel	Occurs when the mouse wheel moves while the control has focus. Inherited from Control.
Move	Occurs when the control is moved. Inherited from Control.
PaddingChanged	Occurs when the control’s padding changes. Inherited from Control.
Paint	Occurs when the control is redrawn. Inherited from Control.
ParentChanged	Occurs when the Parent property value changes. Inherited from Control.
PreviewKeyDown	Occurs before the KeyDown event when a key is pressed while focus is on this control. Inherited from Control.
QueryAccessibilityHelp	Occurs when AccessibleObject is providing help to accessibility applications. Inherited from Control.
QueryContinueDrag	Occurs during a drag-and-drop operation and enables the drag source to determine whether the drag-and-drop operation should be canceled. Inherited from Control.
RegionChanged	Occurs when the value of the Region property changes. Inherited from Control.
Resize	Occurs when the control is resized. Inherited from Control.
RightToLeftChanged	Occurs when the RightToLeft property value changes. Inherited from Control.
ShowDropDownControl	Fires when an attempt is made to open the associated popup control.
SizeChanged	Occurs when the Size property value changes. Inherited from Control.
StyleChanged	Occurs when the control style changes. Inherited from Control.
SystemColorsChanged	Occurs when the system colors change. Inherited from Control.
TabIndexChanged	Occurs when the TabIndex property value changes. Inherited from Control.
TabStopChanged	Occurs when the TabStop property value changes. Inherited from Control.
TextChanged	Occurs when the Text property value changes. Inherited from Control.
Validated	Occurs when the control is finished validating. Inherited from Control.
Validating	Occurs when the control is validating. Inherited from Control.
VisibleChanged	Occurs when the Visible property value changes. Inherited from Control.