There is a possibility to enable keyboard navigation in dhtmlxTree. Using keyboard navigation the user can select any item in the tree and use the following keys:
Keyboard navigation in the tree can be enabled/disabled in the following way:
This method should be called before any of the data loading methods.
The user can also set new navigation keys using the assignKeys() method:
// should be called when keyboard navigation is already switched on tree.assignKeys([["up",104],["down",98],["open",102],["close",100],["call",101]]);
The first parameter is the name of the action, the second one indicates the key code.
The method below allows scrolling to the indicated item from script:
In this case the item is not selected/highlighted.
To select an item from script the user should call the following command:
The parameters of the method are as follows:
The clearSelection() method removes the selection of the specified item in the tree:
Multiselection in the tree allows the user to select multiple items using Ctrl+click. Drag-and-drop is also supported in multiselection mode as well as the Cut and Paste functionality.
The parameters are as follows:
There is a possibility to switch on an item's highlighting feature. When this feature is on, an item's label will be highlighted when the mouse pointer is over it. This feature is operated like this:
tree.enableHighlighting(true/false); // is switched off by default
When this method is set to false, the highlighting is switched off, while setting the method to true switches this feature on.Back to top