Gets or sets a value indicating whether the TreeView directive can accept data during drag&drop operation.
A Boolean value. The default is true, stating that TreeView accepts items or other objects to become dropped into its space during HTML5 drag&drop operation.
This property is accessed through 'allow-drop' attribute of TreeView directive.
Other objects that are not item objects, can still drop into TreeView space as long as the data set in the HTML5 is of 'Text' type. This will automatically create an item object with text set to the value of dropped object text.
Supported in: v1.0.