ASPxTreeList Events

Represents a server ASPxTreeList control.
Name Description
AutoFilterCellEditorCreate Enables you to assign editors to individual filter row cells.
AutoFilterCellEditorInitialize Enables the cell editors displayed within the auto filter row cells to be initialized.
BatchUpdate Occurs after an end-user clicks the Update button in batch edit mode and allows you to provide a custom data updating mechanism.
BeforeExport Occurs before the tree list content is exported.
BeforeGetCallbackResult Occurs after a callback sent by the current control has been processed on the server, but prior to the time the respective callback result render is formed.
BeforeHeaderFilterFillItems Enables you to provide custom filter items instead of default ones displayed within a Header Filter.
CallbackError static Allows you to handle any server exception that might occur during server-side processing of a callback sent by a DevExpress web control. Inherited from ASPxWebControl.
CancelNodeEditing Enables you to prevent changes made within a node from being discarded.
CellEditorInitialize Enables initializing the cell editors displayed within the edit cells.
ClientLayout Enables you to save and restore the previously saved layout of the ASPxTreeList.
CommandColumnButtonInitialize Enables individual command buttons to be initialized.
CustomButtonCallback Occurs when a user clicks a custom command button.
CustomCallback Fires when a round trip to the server has been initiated by a call to the client ASPxClientTreeList.PerformCallback method.
CustomColumnDisplayText Enables custom display text to be provided for any cell.
CustomDataCallback Fires when a round trip to the server has been initiated by a call to the client ASPxClientTreeList.PerformCustomDataCallback method.
CustomErrorText Enables you to provide custom error descriptions for exceptions raised during a callback.
CustomFilterExpressionDisplayText Enables you to display custom text in the filter bar, corresponding to the current filter expression.
CustomFilterNode Enables you to specify whether the required node should be filtered even if this node doesn't match the specified filter criteria.
CustomJSProperties Enables you to supply any server data that can then be parsed on the client.
CustomNodeSort Enables you to sort data using custom rules.
CustomSummaryCalculate Enables you to calculate summary values manually.
CustomUnboundColumnData Enables data to be supplied to unbound columns.
DataBinding Occurs when the server control binds to a data source. Inherited from Control.
DataBound Occurs after the server control binds to the data source. Inherited from ASPxDataWebControlBase.
Disposed Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested. Inherited from Control.
EditingOperationCompleted Occurs after data editing has been completed.
ExportRenderBrick Enables rendering of different content from the content exported by default.
FilterControlColumnsCreated Occurs after all filter control columns have been created.
FilterControlCriteriaValueEditorCreate Enables you to replace the default criteria value editor with a custom one.
FilterControlCriteriaValueEditorInitialize Enables you to initialize the editors displayed within the criteria value.
FilterControlCustomValueDisplayText Enables you to specify the entered filter value's custom display text to be displayed when the filter control's condition value editor is inactive.
FilterControlOperationVisibility Enables you to dynamically hide operation items (such as the Equals, Contains, etc.) of the filter control's operation dropdown menu.
FilterControlParseValue Enables you to process and modify an entered value before it is actually accepted by the filter control.
FocusedNodeChanged Fires after the focused node has been changed.
HeaderFilterEditorInitialize Occurs when a header filter editor is initialized.
HeaderFilterFillItems Enables you to add custom filter items which filter data by the current column, to ones displayed within a Header Filter.
HtmlCommandCellPrepared Enables the settings of individual command cells to be changed.
HtmlDataCellPrepared Enables the settings of individual cells to be changed.
HtmlRowPrepared Enables the settings of individual rows to be changed.
Init Occurs when the server control is initialized, which is the first step in its lifecycle. Inherited from Control.
InitNewNode Enables you to initialize added nodes.
Load Occurs when the server control is loaded into the Page object. Inherited from Control.
NodeCollapsed Fires after a node has been collapsed.
NodeCollapsing Fires before a node is collapsed.
NodeDeleted Occurs after a node has been deleted.
NodeDeleting Enables you to prevent a node from being deleted.
NodeExpanded Fires after a node has been expanded.
NodeExpanding Fires before a node is expanded.
NodeInserted Occurs after a new node has been added to the ASPxTreeList.
NodeInserting Enables you to cancel adding a new node.
NodeUpdated Occurs after a node has been updated.
NodeUpdating Enables you to prevent a node from being updated.
NodeValidating Enables you to specify whether node data is valid, and whether the node can be updated.
PageIndexChanged Fires after the selected page has been changed.
PageSizeChanged Fires on the server side after a page size (amount of rows per a page) is changed by end-user interactions.
ParseValue Enables you to process and modify an entered value before it is actually accepted by the ASPxTreeList.
PreRender Occurs after the Control object is loaded but prior to rendering. Inherited from Control.
ProcessColumnAutoFilter Enables you to apply custom filter criteria when filter row is in the Auto mode.
ProcessDragNode Fires after a node drag and drop operation has been completed.
ProcessOnClickRowFilter Enables you to apply custom filter criteria when the filter row is in the OnClick mode.
SearchPanelEditorCreate Enables you to replace the default search panel editor with custom one.
SearchPanelEditorInitialize Enables you to customize the properties of an editor displayed within the search panel.
SelectionChanged Fires after an end user changed selection.
StartNodeEditing Enables you to prevent a node from being edited.
ToolbarItemClick Fires after a toolbar item has been clicked.
Unload Occurs when the server control is unloaded from memory. Inherited from Control.
VirtualModeCreateChildren Enables creation of a list of business objects that correspond to the child nodes owned by the processed node (virtual mode).
VirtualModeNodeCreated Occurs when the ASPxTreeList functions in Virtual Mode after a node has been created.
VirtualModeNodeCreating Enables you to initialize nodes in a tree virtual mode.
See Also