ToolboxControl Events

Displays multiple sets of items and automatically initiates drag-and-drop operations when an end-user starts dragging these items.

Name	Description
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.
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.
CustomDrawElement	Provides the ability to perform custom painting of the ToolboxControl visual elements.
CustomDrawGroups
CustomDrawItems
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.
DragItemCancel	Fires when a drag operation is canceled.
DragItemDrop	Fires after an item has been dropped. Allows you to perform custom actions on item dropping.
DragItemMove	Fires during item dragging. Allows you to specify the drop effect in the current position.
DragItemStart	Fires when an item’s drag operation starts. Allows you to replace the cursor icon and cancel the drag operation.
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.
GetGroupImage	Fires when a ToolboxGroup is about to displayed for the first time and allows you to provide a custom group icon.
GetItemImage	Fires when a ToolboxItem is about to displayed for the first time and allows you to provide a custom item icon.
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.
InitializeMenu	Fires when the ToolboxControl popup menu is about to be shown, and allows you to customize the menu.
Invalidated	Occurs when a control’s display requires redrawing. Inherited from Control.
ItemClick	Fires when a toolbox item is clicked.
ItemDoubleClick	Fires when an item is double clicked.
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.
SearchTextChanged	Fires when the text in the search box is changed.
SelectedGroupChanged	Fires when the group currently selected in the toolbox is changed.
SizeChanged	Occurs when the Size property value changes. Inherited from Control.
StateChanged	Fires when the toolbox state is changed from normal to minimized, and vice versa.
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.