Events for TreeView
View event list in alphabetical order.
| Name | Description | Defining Class |
|---|---|---|
| OnCheckStateChange | Fired when the checked state changes for an item Fired when the checked state changes for an item, by either clicking on the checkbox or pressing the spacebar. | TreeView |
| OnCreateTree | Fired when the tree is created OnCreateTree is the key event of this class. | TreeView |
Inherited Events from AbstractTreeView
| Name | Description | Defining Class |
|---|---|---|
| OnBeginDrag | Fired on a mouse drag operation using the left mouse button Fired on a mouse drag operation using the left mouse button. | AbstractTreeView |
| OnBeginLabelEdit | Fired just prior to the user starting in-line editing of an item label | AbstractTreeView |
| OnBeginRDrag | Fired on a mouse drag operation using the right mouse button Fired on a mouse drag operation using the right mouse button. | AbstractTreeView |
| OnDeleteItem | Fired prior to item deletion Fired prior to item deletion, giving the developer the opportunity to perform any related cleanup. | AbstractTreeView |
| OnEndLabelEdit | Fired if the user completes the edit when user performs in-line editing of the label | AbstractTreeView |
| OnGetDispInfo | Fired when control receives TVN_GETDISPINFO notification Fired when control receives TVN_GETDISPINFO notification. | AbstractTreeView |
| OnGetInfoTip | Fired when info tips for an item is requested | AbstractTreeView |
| OnItemChanged | Fired whenever the current item has just changed The OnItemChanged event is fired whenever the current item has just changed. | AbstractTreeView |
| OnItemChanging | Fired whenever the current item is about to change The OnItemChanging event is fired whenever the current item is about to change. | AbstractTreeView |
| OnItemClick | Fired whenever a user clicks an item The OnItemClick event is fired whenever a user clicks an item to make it become the current item. | AbstractTreeView |
| OnItemCollapsed | Fired whenever a parent item has just been collapsed and its children hidden The OnItemCollapsed event is fired whenever a parent item has just been collapsed and its children hidden. | AbstractTreeView |
| OnItemCollapsing | Fired whenever a parent item is about to be collapsed The OnItemCollapsing event is fired whenever a parent item is about to be collapsed. | AbstractTreeView |
| OnItemDblClick | Fired whenever a user double-clicks an item The OnItemDblClick event is fired whenever a user double-clicks an item. | AbstractTreeView |
| OnItemEnter | Fired whenever a user presses Enter on an item The OnItemEnter event is fired whenever a user presses Enter on an item. | AbstractTreeView |
| OnItemExpanded | Fired whenever a parent item has just been expanded to display its child items The OnItemExpanded event is fired whenever a parent item has just been expanded to display its child items. | AbstractTreeView |
| OnItemExpanding | Fired whenever an item is about to be opened The OnItemExpanding event is fired whenever an item is about to be opened. | AbstractTreeView |
| OnItemRClick | Fired whenever a user clicks an item using the right mouse button The OnItemRClick event is fired whenever a user clicks an item using the right mouse button. | AbstractTreeView |
| OnItemRDblClick | Fired whenever a user double-clicks an item using the right mouse button The OnItemRDblClick event is fired whenever a user double-clicks an item using the right mouse button. | AbstractTreeView |
| OnKeyDown | Fired when a key is pressed Fired when a key is pressed. | AbstractTreeView |
| OnSetDispInfo | Fired when control receives TVN_SETDISPINFO notification Fired when control receives TVN_SETDISPINFO notification. | AbstractTreeView |
Inherited Events from List
| Name | Description | Defining Class |
|---|---|---|
| OnChange | Called when the data in this object changes The OnChange message is a "hook" procedure for you to use for any action you wish to occur when the data in this object changes. | List |
| OnKillFocus | Sent whenever the object is about to lose the focus This event message is sent whenever the object is about to lose the focus. | List |
| OnSetFocus | Sent whenever windows is about to give this object the focus This event message is sent whenever windows is about to give this object the focus. | List |
| Prompt_Callback | Sends a callback event to an object that requested a prompt object | List |
Inherited Events from DfBaseList
| Name | Description | Defining Class |
|---|---|---|
| Item_Change | A programming hook to perform an action when moving to another item The Item_Change event is triggered each time the current item has changed (navigation is about to move to another item). | DfBaseList |
| Key | Augmented to implement the GUI keyboard interface The Key message is augmented to implement the GUI keyboard interface. | DfBaseList |
Inherited Events from DfBaseUIWindow
| Name | Description | Defining Class |
|---|---|---|
| Command | Sent from external controls Command messages are sent from external controls. | DfBaseUIWindow |
Inherited Events from DfBaseObject
| Name | Description | Defining Class |
|---|---|---|
| Form_Button_Mouse_Down | A notification that the form's button has been selected with the mouse Form_button_mouse_down is a notification that the form's button has been selected with the mouse. | DfBaseObject |
| Form_Button_Notification | A notification of a form button event Form_button_notification is a notification of a form button event. | DfBaseObject |
| Notify_Application_Activation | Sends OnActivateApp or OnDeactivateApp This procedure is augmented to send OnActivateApp when bIsActivating is True and OnDeactivateApp when bIsActivating is False. | DfBaseObject |
| OnDeltaPos | Provides actions based on the amount of change in this object and/or its value at the point the focus is moved off it The OnDeltaPos event message has no definition by default. | DfBaseObject |
Inherited Events from cUIObject
| Name | Description | Defining Class |
|---|---|---|
| Activating | Sent by the object to itself whenever the object is first activated (placed on the screen) | cUIObject |
| Deactivating | Sent to the object when it is being removed from the focus tree The Deactivating event is sent to the object when it is being removed from the focus tree. | cUIObject |
| Entering | Fires when the focus is about to move to a new object, sent to the object receiving the focus | cUIObject |
| Entering_Scope | Sent to the object if its scope_state is true, and one of the objects within its scope takes the focus | cUIObject |
| Error_Report | Used by the error object to display errors The Error_Report procedure is used by the error object to display errors. | cUIObject |
| Exiting | Fires when the focus is about to move to a new object, sent to the object losing the focus When the focus is about to move to a new object, the exiting event is sent to the object losing the focus. | cUIObject |
| Exiting_Scope | Sent whenever the focus is moving to an object that is outside the current scope The Exiting_Scope event is sent whenever the focus is moving to an object that is outside the current scope. | cUIObject |
| Mouse_Click | Sent whenever the first button of the mouse is double clicked on an item or in the edit window of the object | cUIObject |
| Mouse_Click2 | Sent whenever the second button of the mouse is double clicked on an item or in the edit window of the object | cUIObject |
| Mouse_Down | Sent whenever the first button of the mouse is pressed down while on an item or in the edit window of the object | cUIObject |
| Mouse_Down2 | Sent whenever the second button of the mouse is pressed down while on an item or in the edit window of the object | cUIObject |
| Mouse_Drag | Sent whenever the first button of the mouse is being held down while users drag the mouse cursor from one item or edit line of the object to the next | cUIObject |
| Mouse_Drag2 | Sent whenever the second button of the mouse is being held down while users drag the mouse cursor from one item or edit line of the object to the next | cUIObject |
| Mouse_Up | Sent whenever the first button of the mouse is released while on an item is in the edit window of the object Mouse_Up is sent whenever the first (normally the left) mouse button is released. | cUIObject |
| Mouse_Up2 | Sent whenever the second button of the mouse is released while on an item is in the edit window of the object Mouse_Up2 is sent whenever the second (normally the right) mouse button is released. | cUIObject |
| OnChildWrapping | Called any time a wrapping event occurs The OnChildWrapping message is sent any time a wrapping event occurs. | cUIObject |
| OnEnterArea | Hook for entering an area, sent to the entered object's container and its parent containers | cUIObject |
| OnEnterObject | Hook for entering an object, sent to the entered object Called after the navigation event is complete, so Focus(Self) is always the "to" object. | cUIObject |
| OnExitArea | Hook for exiting an area, sent to the exited object's container and its parent containers | cUIObject |
| OnExitObject | Hook for exiting an object, sent to the exited object Called after the navigation event is complete, so Focus(Self) is always the "to" object. | cUIObject |
| Page | Used internally to create a Windows control for a DataFlex object Used internally to create a Windows control for a DataFlex object. | cUIObject |
| Page_Delete | Used internally to delete a Windows control for a DataFlex object Used internally to delete a Windows control for a DataFlex object. | cUIObject |
Inherited Events from cObject
| Name | Description | Defining Class |
|---|---|---|
| Construct_Object | Object constructor. | cObject |
| Destroy_Object | Sent when an object is about to be destroyed The Destroy_Object event is sent to an object when it is about to be destroyed. | cObject |
| End_Construct_Object | End of object constructor. | cObject |