GanttControl Events

Represents a bar chart that illustrates a project schedule. The control displays project tasks organized in a tree list. The chart displays a bar against each task that shows the task start and finish dates, progress, and dependencies.

Name	Description
AfterCheckNode	Occurs after a node’s check state has been changed by an end-user. Inherited from TreeList.
AfterCollapse	Fires immediately after a node has been collapsed. Inherited from TreeList.
AfterDragNode	Fires immediately after a drag-and-drop operation on a node has been successfully completed. Inherited from TreeList.
AfterDropNode	Fires after a node is dropped. Inherited from TreeList.
AfterExpand	Fires immediately after a node has been expanded. Inherited from TreeList.
AfterFocusNode	Fires in response to focus being moved between nodes. Inherited from TreeList.
AutoSizeChanged	This event is not relevant for this class. Inherited from Control.
BackColorChanged	Occurs when the value of the BackColor property changes. Inherited from Control.
BackgroundImageChanged	Occurs when the value of the BackgroundImage property changes. Inherited from Control.
BackgroundImageLayoutChanged	Occurs when the BackgroundImageLayout property changes. Inherited from Control.
BandPositionChanged	Fires after a band changes its position or visibility. Inherited from TreeList.
BandWidthChanged	Occurs when the band’s width is changed. Inherited from TreeList.
BeforeCheckNode	Occurs before a node’s check state is changed. Inherited from TreeList.
BeforeCollapse	Fires before a node is collapsed. Inherited from TreeList.
BeforeDragNode	Fires when an attempt to drag a node is performed. Inherited from TreeList.
BeforeDropNode	Fires when a node is about to be dropped, and allows you to cancel the operation. Inherited from TreeList.
BeforeExpand	Fires before a node is expanded. Allows you to implement dynamic node loading in unbound mode. Inherited from TreeList.
BeforeFocusNode	Fires before a node is focused. Inherited from TreeList.
BeforeLoadLayout	Occurs before a layout is restored from storage (a stream, xml file or the system registry). Inherited from TreeList.
BindingContextChanged	Occurs when the value of the BindingContext property changes. Inherited from Control.
CalcNodeDragImageIndex	Enables you to specify a custom image to be displayed in front of nodes during node drag-and-drop. Inherited from TreeList.
CalcNodeHeight	Allows you to assign custom node height. Inherited from TreeList.
CausesValidationChanged	Occurs when the value of the CausesValidation property changes. Inherited from Control.
CellValueChanged	Fires immediately after a user closes a cell editor with a modified value. Inherited from TreeList.
CellValueChanging	Fires when an end-user starts to edit a cell value. Inherited from TreeList.
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.
ClipboardNodeCopying	Fires before a data row, a group row, column headers, or band headers are copied to the clipboard. Allows you to apply a format, change copied data, or skip a data row or header. Inherited from TreeList.
ClipboardNodePasting	Fires before a node is pasted to the control. Allows you to apply a format, update the pasted data, or skip a data row. Inherited from TreeList.
ColumnButtonClick	Fires when the column button is clicked. Inherited from TreeList.
ColumnChanged	Fires immediately after the column collection or an individual column has been modified. Inherited from TreeList.
ColumnFilterChanged	Occurs when a column’s filter condition is changed. Inherited from TreeList.
ColumnPositionChanged	Fires when a column is moved, hidden, or shown. Inherited from TreeList.
ColumnUnboundExpressionChanged	Fires after a column’s TreeListColumn.UnboundExpression property has been changed. Inherited from TreeList.
ColumnWidthChanged	Fires after a column’s width has been changed. Inherited from TreeList.
CompareNodeValues	Enables you to implement custom sorting for columns whose TreeListColumn.SortMode property is set to Custom. For versions 17.1 and higher, the CompareNodeValues event is deprecated and replaced with the TreeList.CustomColumnSort event. Inherited from TreeList.
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.
CreateCustomNode	Provides the ability to create custom nodes. Inherited from TreeList.
CursorChanged	Occurs when the value of the Cursor property changes. Inherited from Control.
CustomCalcTaskDependency	Fires before the control calculates a dependency line. Allows you to specify the dependency line.
CustomColumnDisplayText	Fires for both bound and unbound Tree List columns and allows you to provide a custom display text for any cell. Inherited from TreeList.
CustomColumnSort	Allows you to apply custom sorting for those Tree List columns whose TreeListColumn.SortMode is set to Custom. Inherited from TreeList.
CustomDrawBandHeader	Provides the capability to custom paint band headers. Inherited from TreeList.
CustomDrawColumnHeader	Provides the ability to custom paint column headers and the column button. Inherited from TreeList.
CustomDrawEmptyArea	Enables you to custom paint a Tree List’s empty area. Inherited from TreeList.
CustomDrawFilterPanel	Enables you to custom paint the Filter Panel. Inherited from TreeList.
CustomDrawFooter	Gives you the ability to perform custom painting of the summary footer. Inherited from TreeList.
CustomDrawFooterCell	Gives you the ability to perform custom painting of column footer cells. Inherited from TreeList.
CustomDrawNodeButton	Gives you the ability to perform custom painting of expand buttons. Inherited from TreeList.
CustomDrawNodeCell	Provides the ability to perform custom painting of node cells. Inherited from TreeList.
CustomDrawNodeCheckBox	Enables you to manually paint node check boxes. Inherited from TreeList.
CustomDrawNodeImages	Provides access to a GDI+/DirectX drawing surface and allows you to draw node icons manually. Inherited from TreeList.
CustomDrawNodeIndent	Enables tree indents to be painted manually. Inherited from TreeList.
CustomDrawNodeIndicator	Provides the ability to perform custom painting of indicator cells. Inherited from TreeList.
CustomDrawNodePreview	Allows you to custom paint preview sections. Inherited from TreeList.
CustomDrawRow	Enables you to paint rows. Inherited from TreeList.
CustomDrawRowFooter	Provides the ability to perform custom painting of row footers. Inherited from TreeList.
CustomDrawRowFooterCell	Provides the ability to perform custom painting of row footer cells. Inherited from TreeList.
CustomDrawScroll	Allows you to draw custom scrollbars, or highlight specific positions on the scrollbars. Inherited from TreeList.
CustomDrawTask	Fires before a task in the chart area is displayed. Provides access to a drawing surface and allows you to draw the task manually.
CustomDrawTaskDependency	Fires before a task dependency line in the chart area is displayed. Provides access to a drawing surface and allows you to draw the task manually.
CustomDrawTimelineBar	Allows you to draw a timeline bar.
CustomDrawTimelineTask	Allows you to draw tasks displayed on the timeline.
CustomDrawTimescaleColumn	Fires before a column in the chart area is displayed. Provides access to a drawing surface and allows you to draw the column manually.
CustomFilterDisplayText	Allows you to customize the text displayed within the Filter Panel. Inherited from TreeList.
CustomizationFormSearch	Allows you to filter search results when a user searches in the Advanced Customization Form. Inherited from TreeList.
CustomizeItem	Allows you to modify items generated from HTML templates.
CustomizeNewNodeFromOuterData	Allows you to initialize a new node when a user drops the node from another TreeList control onto the current TreeList control. Inherited from TreeList.
CustomizeNodeTemplate	Allows you to customize templated nodes. Inherited from TreeList.
CustomNodeCellEdit	Enables editors to be assigned to cells on an individual basis. To avoid performance issues and increased memory consumption, assign repository items that already exist in the TreeList.RepositoryItems collection. Do not create new repository items in this handler. Inherited from TreeList.
CustomNodeCellEditForEditing	Allows you to assign a custom editor to a column for in-place editing and override the default column editor, which is by default used both in display and edit modes. To avoid performance issues and increased memory consumption, assign repository items that already exist in the TreeList.RepositoryItems collection. Do not create new repository items in this handler. Inherited from TreeList.
CustomPrintTask	Fires before a Gantt bar in the chart area is printed. Provides access to the drawing surface and allows you to draw the Gantt bar in a custom way.
CustomPrintTaskDependency	Fires before a dependency line between two Gantt bars is printed. Provides access to the drawing surface and allows you to draw the dependency line in a custom way.
CustomPrintTimescaleColumn	Fires before a timescale column (the header and the chart area) is printed. Provides access to the drawing surface and allows you to draw the column in a custom way.
CustomPrintTreeColumnHeader
CustomRowFilter	Allows you to specify the node visibility, regardless of the applied filter. Inherited from TreeList.
CustomScrollAnnotation	Allows you to specify custom annotations. Inherited from TreeList.
CustomTaskDisplayText	Allows you to specify the caption displayed inside, to the left, and to the right of a task.
CustomTaskProgress	Fires when a task’s progress is recalculated and allows you to specify a custom value.
CustomTaskScheduling	Fires during the automatic rescheduling process when the control calculates new start and finish dates for a task. Allows you to cancel rescheduling the current task and stop the rescheduling process for its successors.
CustomTimelineItemText	Allows you to specify a custom caption and details for tasks displayed on the timeline.
CustomUnboundColumnData	Allows you to provide data to unbound columns, and save their modified records to an external source. Inherited from TreeList.
DataSourceChanged	Occurs whenever the TreeList changes its data source. Inherited from TreeList.
DefaultPaintHelperChanged	Fires when a different paint helper is assigned to the TreeList control. Inherited from TreeList.
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.
DragCancelNode	Fires immediately after a drag-and-drop operation over a node has been canceled. Inherited from TreeList.
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.
DragObjectDrop	Fires immediately after the drag and drop operation has been completed. Inherited from TreeList.
DragObjectOver	Enables you to control whether the dragged column header can be dropped at the current position. Inherited from TreeList.
DragObjectStart	Fires when an end-user attempts to drag a column header. Inherited from TreeList.
DragOver	Occurs when an object is dragged over the control’s bounds. Inherited from Control.
EditFormHidden	Fires after the Edit Form is closed. Inherited from TreeList.
EditFormPrepared	Fires when the Edit Form is about to be displayed. Allows you to customize the Edit Form. Inherited from TreeList.
EditFormShowing	Fires when the Edit Form is about to be displayed. Allows you to cancel the action. Inherited from TreeList.
EditorKeyDown	Occurs when a key is pressed within an in-place editor that belongs to the container control. Inherited from EditorContainer.
EditorKeyPress	Occurs when a character key is pressed within an in-place editor that belongs to the container control. Inherited from EditorContainer.
EditorKeyUp	Occurs when a pressed key is released within an in-place editor that belongs to the container control. Inherited from EditorContainer.
EnabledChanged	Occurs when the Enabled property value has changed. Inherited from Control.
EndSorting	Fires after a sorting operation has finished. Inherited from TreeList.
Enter	Occurs when the control is entered. Inherited from Control.
FilterEditorCreated	Allows you to customize the Filter Editor before it is displayed on screen. Inherited from TreeList.
FilterExpressionEditorCreated	Allows you to customize the Expression Editor used to edit custom expressions that are displayed in the control’s Filter Editor. Inherited from TreeList.
FilterNode	This event is obsolete. Use the TreeList.CustomRowFilter event instead. Inherited from TreeList.
FilterPopupExcelCustomizeTemplate	Allows you to customize templates used by Excel-style Filter Dropdowns and external editors generated using Filtering UI Context. Inherited from TreeList.
FilterPopupExcelData	Allows you to add, remove, and modify data values and customize predefined filters in the Excel style pop-up filter menus. Filter items added manually on this event must be unique and sorted. Inherited from TreeList.
FilterPopupExcelParseFilterCriteria	Allows you to parse the filter criteria applied to data and select the corresponding values in the filter menu. Inherited from TreeList.
FilterPopupExcelPrepareTemplate	Allows you to replace templates used by Excel-style Filter Dropdowns and external editors generated using Filtering UI Context. Inherited from TreeList.
FilterPopupExcelQueryFilterCriteria	Fires when a filter criteria is about to be applied to data and allows you to customize the filter criteria. Inherited from TreeList.
FocusedColumnChanged	Fires immediately after focus has been moved from a column. Inherited from TreeList.
FocusedNodeChanged	Fires when focus moves from one node to another. Inherited from TreeList.
FontChanged	Occurs when the Font property value changes. Inherited from Control.
ForeColorChanged	Occurs when the ForeColor property value changes. Inherited from Control.
FormatInteractionTooltipValues
FormatRuleExpressionEditorCreated	Allows you to customize the Expression Editor embedded in the Edit Formatting Rule dialog. Inherited from TreeList.
GetCustomNodeCellEdit	Obsolete. Provides the ability to assign editors to individual cells. Inherited from TreeList.
GetCustomNodeCellStyle	Obsolete. Provides the ability to assign custom style to individual cells. Inherited from TreeList.
GetCustomSummaryValue	Allows you to specify custom summary values when the control is displayed on-screen. Inherited from TreeList.
GetNodeDisplayValue	Allows you to display custom values within cells. This event is obsolete. Use the TreeList.CustomColumnDisplayText event instead. Inherited from TreeList.
GetPreviewText	Enables you to supply custom text for nodes’ preview sections. Inherited from TreeList.
GetPrintCustomSummaryValue	Allows you to specify custom summary values when the control is printed. Inherited from TreeList.
GetPrintPreviewText	Enables you to display custom text in preview sections when the control is printed. Inherited from TreeList.
GetSelectImage	Allows you to assign select images to nodes. Inherited from TreeList.
GetStateImage	Allows you to assign state images to nodes. Inherited from TreeList.
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.
HiddenEditor	Fires immediately after a cell editor has been closed. Inherited from TreeList.
HideCustomizationForm	Fires immediately after the Customization Form has been closed. Inherited from TreeList.
HtmlElementMouseClick	Occurs when a user clicks an element inside an HTML-CSS template. Inherited from TreeList.
HtmlElementMouseDoubleClick	Occurs when a user double-clicks any element of an HTML-CSS template. Inherited from TreeList.
HtmlElementMouseDown	Occurs when a mouse pointer is over an element of an HTML-CSS template, and a mouse button is pressed. Inherited from TreeList.
HtmlElementMouseMove	Occurs when a mouse pointer moves while over an element of an HTML-CSS template. Inherited from TreeList.
HtmlElementMouseOut	Occurs when a mouse pointer leaves the bounds of an element within an HTML-CSS template. Inherited from TreeList.
HtmlElementMouseOver	Occurs when a mouse pointer enters the bounds of an element within an HTML-CSS template. Inherited from TreeList.
HtmlElementMouseUp	Occurs when a mouse button pressed over an element of an HTML-CSS template is released. Inherited from TreeList.
HtmlSelectedTextChanged	Inherited from TreeList.
HyperlinkClick	Fires when a hyperlink in a column or band header is activated. Inherited from TreeList.
ImeModeChanged	Occurs when the ImeMode property has changed. Inherited from Control.
InitNewRow	Fires when a new node is about to be created in the New Item Row and allows you to initialize column values. Inherited from TreeList.
Invalidated	Occurs when a control’s display requires redrawing. Inherited from Control.
InvalidNodeException	Fires when a node fails validation or when its data cannot be saved to the data source. Inherited from TreeList.
InvalidValueException	Enables you to handle exceptions raised as a result of assigning invalid values to cells. Inherited from TreeList.
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.
LayoutUpdated	Fires after a Tree List’s layout has been changed. Inherited from TreeList.
LayoutUpgrade	Occurs after a layout the version of which doesn’t match the current layout version used has been loaded from storage (a stream, xml file or system registry). Inherited from TreeList.
Leave	Occurs when the input focus leaves the control. Inherited from Control.
LeftCoordChanged	Fires when the control’s content is scrolled horizontally. Inherited from TreeList.
Load	Occurs when a TreeList control is displayed for the first time. Inherited from TreeList.
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.
MeasurePreviewHeight	Allows you to specify the height of individual preview sections in pixels. Inherited from TreeList.
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.
NodeCellStyle	Allows you to customize the appearance of individual cells. Inherited from TreeList.
NodeChanged	Fires after the node’s property has changed. Inherited from TreeList.
NodesReloaded	Fires when the Tree List control reloads all nodes. Inherited from TreeList.
PaddingChanged	Occurs when the control’s padding changes. Inherited from Control.
Paint	Occurs when the control is redrawn. Inherited from Control.
PaintEx	A DirectX-compatible event that replaces the standard Control.Paint event. Inherited from TreeList.
ParentChanged	Occurs when the Parent property value changes. Inherited from Control.
ParseFindPanelText	Fires after the query in the find panel changes. Allows you to create a filter condition based on the query and specify how to highlight results in the control. Inherited from TreeList.
PreviewKeyDown	Occurs before the KeyDown event when a key is pressed while focus is on this control. Inherited from Control.
PrintExportProgress	Fires repeatedly while the TreeList’s data is being printed/exported. Inherited from TreeList.
PropertyDeserializing	Allows you to restore certain settings previously saved in the layout. Inherited from TreeList.
PropertySerializing	Allows you to include certain settings in the layout when you save it. Inherited from TreeList.
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.
QueryCustomFunctions	Allows you to add custom-function-based filters (for example, ‘discount is more than 15%’) to Excel-style pop-up filter menus and/or the filter editor. Inherited from TreeList.
QueryEmptyTreeTemplate	Allows you to assign HTML-CSS templates from the HtmlTemplates collection to an empty TreeList. Inherited from TreeList.
QueryItemTemplate	Allows you to assign HTML-CSS templates from the GanttControl.HtmlTemplates collection to UI elements of the required type.
QueryNodeTemplate	Allows you to assign HTML-CSS templates from the HtmlTemplates collection to nodes. Inherited from TreeList.
RegionChanged	Occurs when the value of the Region property changes. Inherited from Control.
RequestTimescaleRulers	Fires when the chart is zoomed in / zoomed out. Allows you to customize the timescale rulers.
Resize	Occurs when the control is resized. Inherited from Control.
RightToLeftChanged	Occurs when the RightToLeft property value changes. Inherited from Control.
RowCellClick	Fires when a cell is clicked. Inherited from TreeList.
RowClick	Fires when a row (node) is clicked. Inherited from TreeList.
RowSelectImageClick	Fires when a row’s select image is clicked. Inherited from TreeList.
RowStateImageClick	Fires when a row’s state image is clicked. Inherited from TreeList.
ScrollAnnotationsStyle	Allows you to customize the scrollbar annotation color and alignment. Inherited from TreeList.
SelectImageClick	Fires when the user clicks a node’s select image. This event is obsolete. Use RowSelectImageClick instead. Inherited from TreeList.
SelectionChanged	Fires when node selection is changed. In v21.1 and higher, the event fires both in single and multiple node selection modes. Inherited from TreeList.
SelectionChanging	Allows you to specify whether users can select and unselect nodes. Inherited from TreeList.
ShowCustomizationForm	Fires immediately after the Customization Form has been displayed. Inherited from TreeList.
ShowFilterPopupCheckedListBox	Fires before a pop-up filter menu is displayed. Allows you to customize the value checklist. Inherited from TreeList.
ShowFilterPopupDate	Allows you to customize a column’s dropdown calendar before it is displayed. Inherited from TreeList.
ShowFilterPopupExcel	Allows you to hide specific filtering conditions from the “Filters” tab of the Excel-style Filter Dropdown. Inherited from TreeList.
ShowFilterPopupListBox	Fires before a pop-up filter menu is displayed. Allows you to customize the value list. Inherited from TreeList.
ShowingEditor	Fires before the TreeList is switched to edit mode. Inherited from TreeList.
ShownEditor	Fires immediately after a cell editor has been invoked. Inherited from TreeList.
ShowTreeListMenu	Obsolete. Allows you to customize the default menus for column headers, row and footer summaries, nodes, and the empty area. Inherited from TreeList.
SizeChanged	Occurs when the Size property value changes. Inherited from Control.
SplitterPositionChanged	Fires after the splitter changes its position.
SplitterPositionChanging	Fires before the splitter changes its position. Allows you to cancel the action.
StartSorting	Fires before a sorting operation is started. Inherited from TreeList.
StateChanged	Fires after the Tree List’s state has changed. Inherited from TreeList.
StateImageClick	Fires when the user clicks a node’s state image. This event is obsolete. Use RowStateImageClick instead. Inherited from TreeList.
StyleChanged	Occurs when the control style changes. Inherited from Control.
SubstituteFilter	Allows you to replace the applied filter with another filter. Inherited from TreeList.
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.
TaskDependencyModification	Repeatedly fires when a user modifies a task’s dependency. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskDependencyModificationCanceled	Fires when a user presses Esc to cancel modifying a task’s dependency. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskDependencyModificationCompleted	Fires when a user finishes modifying a dependency. Allows you to cancel the operation.
TaskDependencyModified	Fires when a task’s dependency is successfully modified. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskFinishDateModification	Repeatedly fires when a user modifies a task’s finish date. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskFinishDateModificationCanceled	Fires when a user presses Esc to cancel modifying a task’s finish date. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskFinishDateModificationCompleted	Fires when a user finishes modifying a finish date. Allows you to cancel the operation.
TaskFinishDateModificationStarted	Fires when a user starts to modify a task’s finish date. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskFinishDateModified	Fires when a task’s finish date is successfully modified. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskMoveCanceled	Fires when a user presses Esc to cancel moving a task. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskMoveCompleted	Fires when a user finishes moving a task. Allows you to cancel the operation.
TaskMoved	Fires when a task is successfully moved. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskMoveStarted	Fires when a user starts to move a task. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskMoving	Repeatedly fires when a user moves a task. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskPopupMenuShowing	Fires when a context menu for a task is about to be shown.
TaskProgressModification	Repeatedly fires when a user modifies a task’s progress. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskProgressModificationCanceled	Fires when a user presses Esc to cancel modifying a task’s progress. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskProgressModificationCompleted	Fires when a user finishes modifying progress. Allows you to cancel the operation.
TaskProgressModificationStarted	Fires when a user starts to modify a task’s progress. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskProgressModified	Fires when a task’s progress is successfully modified. This event only fires when a user modifies a task in the chart. When the user modifies a task in the task list, the event does not fire.
TaskToolTipShowing	Fires when a tooltip for a task is about to be shown.
TextChanged	Occurs when the Text property value changes. Inherited from Control.
TimelinePopupMenuShowing
TimelineSplitterPositionChanged	Occurs after the height of the timeline was changed.
TimelineSplitterPositionChanging	Occurs before the timeline height is changed by a user and allows you to cancel the action.
TimelineTaskToolTipShowing	Allows you to display a regular or super tooltip for a task displayed on the timeline.
TopVisibleNodeIndexChanged	Fires when the control’s content is scrolled vertically. Inherited from TreeList.
TreeListMenuItemClick	Provides the ability to perform custom handling of a context menu item click. Inherited from TreeList.
TreeListPopupMenuShowing	Allows you to customize the default menus for column headers, summary footers, and nodes.
UnboundExpressionEditorCreated	Fires after an Expression Editor has been created for an unbound column. Inherited from TreeList.
Validated	Occurs when the control is finished validating. Inherited from Control.
ValidateNode	Gives you the ability to specify whether a modified node’s data is valid, and if this node can lose focus. Inherited from TreeList.
Validating	Occurs when the control is validating. Inherited from Control.
ValidatingEditor	Fires when an editor is validated. Inherited from TreeList.
VirtualTreeGetCellValue	This event allows you to initialize cells (and optionally the check state) of the processed node, when populating the Tree List control with data dynamically. Inherited from TreeList.
VirtualTreeGetChildNodes	Allows you to supply root and child nodes, when populating the Tree List control with data dynamically. Inherited from TreeList.
VirtualTreeSetCellValue	Allows changes that are made to node cells and check state to be stored. Inherited from TreeList.
VisibleChanged	Occurs when the Visible property value changes. Inherited from Control.