ASPTreeView Control - Client-Side Events

You can find event functions in tree2/script/ob_events_xxxx.js You can either modify default function, or add one using script tag directly to page, placing it just after </html> tag. For example - event handler function for OnNodeSelect: function ob_OnNodeSelect(id) { alert(id); } All client-side events are enabled by default.

Available events:

OnNodeSelect ob_OnNodeSelect(id) Invoked after node was selected. id is an identifier of newly selected node. OnNodeEdit ob_OnNodeEdit(id, text, prevText) Invoked after node was edited id is a node identifier text is a new text of a node prevText is an old text, as a name suggests OnNodeDrop ob_OnNodeDrop(src, dst, copy) Invoked after node src was dropped to dst copy is set to true if src was copied to dst (using CTRL + D-n-d) OnNodeDropOutside ob_OnNodeDropOutside(src) Invoked when the dragged node is droped outside the TreeView. src represents the dragged node. OnAddNode ob_OnAddNode(parentId, childId, textOrHTML, expanded, image, subTreeURL) Invoked after node was added by ob_t2_Add client-side function. For more information on ob_t2_Add function look here OnRemoveNode ob_OnRemoveNode(id) Invoked after node was removed by ob_t2_Remove client-side function id is an identifier of an already removed node and thus is only useful to send it to server-side (or clean-up data linked with it on the client-side) OnNodeExpand ob_OnNodeExpand(id, dynamic) Invoked when a node is expanded. id is the identifier of the expanded node dynamic is set to true if the node is parent for a dynamic subtree OnNodeCollapse ob_OnNodeCollapse(id) Invoked when a node is collapsed. id is the identifier of the collapsed node OnMoveNodeUp ob_OnMoveNodeUp(node_up_id, node_down_id) Invoked when a node is moved up using the ob_t2_UpDown function. node_up_id is the identifier of the moved node node_down_id is the identifier of the replaced node OnMoveNodeDown ob_OnMoveNodeDown(node_down_id, node_up_id) Invoked when a node is moved down using the ob_t2_UpDown function. node_down_id is the identifier of the moved node node_up_id is the identifier of the replaced node

Events - validating events(must return true or false)

OnBeforeNodeSelect ob_OnBeforeNodeSelect(id) Invoked just before a node is selected. Return false to prevent node selection. OnBeforeNodeEdit ob_OnBeforeNodeEdit(id) Invoked just before user starts to edit a node's text. Return false to prevent editing. id is the id of the edited node OnBeforeAddNode ob_OnBeforeAddNode(parentId, childId, textOrHTML, expanded, image, subTreeURL) Invoked before ob_t2_Add adds a node. For more information see OnAddNode description above. OnBeforeRemoveNode ob_OnBeforeRemoveNode(id) Invoked before ob_t2_Remove removes a node. For more information see OnRemoveNode description above. OnBeforeNodeDrop ob_OnBeforeNodeDrop(src, dst, copy) Invoked before completing a drag-and-drop operation. Not invoked when drag-and-drop is not successful for some other reasons. If CTRL + D-n-d is used for copying src to dst, copy will be true OnBeforeNodeDrag ob_OnBeforeNodeDrag(id) Invoked before starting to drag the node. OnBeforeNodeDropOutside ob_OnBeforeNodeDropOutside(dst) Invoked before completing a drag-and-drop operation outside the tree. OnBeforeNodeExpand ob_OnBeforeNodeExpand(id, dynamic) Invoked before expanding a node. If the node is the parent of a dynamic subtree, dynamic will be set to true OnBeforeNodeCollapse ob_OnBeforeNodeCollapse(id) Invoked before collapsing a node.

Please visit HOW-TO and Help page for any questions.

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