BootstrapClientTreeViewNode.SetBadgeIconCssClass - Sets the icon CSS class of the node badge. BootstrapClientTreeViewNode.GetBadgeIconCssClass - Gets the icon CSS class of the node badge. BootstrapClientTreeViewNode.SetBadgeText - Sets the text of the node badge. BootstrapClientTreeViewNode.GetBadgeText - Gets the text of the node badge. The methods listed below allow you to manipulate badges on the client: BootstrapTreeViewVirtualNode.Badge - Gets or sets the virtual node badge. BootstrapTreeViewNode.Badge - Gets or sets the node badge. Use the following API to configure badges on the server side: A badge can display a text, an icon or both. The TreeView can display supplementary information for any node within a badge. To prevent these actions, subscribe to the client-side ExpandedChanging event and set e.cancel to the true value in your event handler. You can control whether to display the Tree View's Hide (-) and Expand (+) buttons using the ShowExpandButtons property.Ĭollapsing and expanding actions will remain available for end-users via a mouse double click. Note that in this demo the callback time is intentionally extended so that the loading indicator is visible during callbacks. To specify whether to use the callback technology to transfer node data to from server, use the EnableCallBacks property. When this mode is activated, the contents of collapsed nodes are not present on the client until these nodes are expanded. The Tree View control can obtain its node from the server as needed using callbacks. You can control this behavior using the SyncSelectionMode property. Moreover, the Tree View control can automatically select an item for a current page. 
You can identify the clicked item by the value of its Name property. Handle the client ItemClick or server ItemClick event to detect a selection change. ClientTreeView.GetSelectedNode - returns the selected node.ClientTreeView.SetSelectedNode - selects the specified node.
TreeView.SelectedNode - gets or sets the selected node within the Tree View control.Note that only one node can be selected at a time. To allow node selection, set the control's AllowSelectNodes property to true. The Tree View control supports selection of nodes with a mouse click.
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