Client-Side Events

FlyTreeView server-side control contains a number of OnXXXJavascript properties. They can be used in order to handle client-side events. The handler may contain a name of javascript function or a function javascript code.

OnInitializedJavascript ([CFlyTreeView] sender)

Fired when treeview client-side instance finished loading.

OnNodeEventJavascript ([CFlyTreeView] sender, [CFlyTreeNode] node, [string] eventType)

Fired when treenode event occures.
The eventType argument may contain one of the following values:

selected
deselected
collapsed
expanded
populated
populatefailed
checked
unchecked

[boolean] OnSelectedNodeChangingJavascript ([CFlyTreeView] sender, [CFlyTreeNode] oldNode, [CFlyTreeNode] node)

Fired before a node is selected (deselected). Return false to prevent the action.

OnSelectedNodeChangedJavascript ([CFlyTreeView] sender, [CFlyTreeNode] oldNode, [CFlyTreeNode] node)

Fired after a node is selected (deselected).

[boolean] OnDragStartJavascript ([CFlyTreeNode] node)

Fired when a treeview node drag is initiated. Return false to cancel the drag-and-drop start. (See the Drag-and-Drop documentation for details).

[string|boolean] OnDragOverJavascript ([CFlyTreeNode] target)

Fired when a drag object is over treeview node (target).
The return value may contain one of the following values:

string - replaces the acceptNames property of the target node
true - accept drop
false - deny drop

OnDragOutJavascript ([CFlyTreeNode] target)

Fired when a dragObject is out of treeview node (target).

[boolean] OnDropJavascript ([CFlyTreeNode] target, [event] event)

Fired when a dragObject is dropped onto treeview node (target). Return false to cancel the drop.

[boolean] OnContextMenuJavascript ([CFlyTreeView] sender, [CFlyTreeNode] node, [event] event)

Fired when a user clicks node with right button of mouse. Returns false to pervent event bubble or true otherwise.