Editing Items

While the IBindingList datasource is being edited, Essential Grouping will respond immediately to any changes. If the edit changes a record sort position, filter state or group state, the engine will handle repositioning record correctly. Since binary trees have the advantage that parent branches can cache information about their children, the position and summary information is cached in parent branches, allowing the editing changes to quickly honor any sort/group criteria that is currently applied. If a user changes an entry so that it changes its group location or summary information, the Grouping Engine updates these items automatically.

Below is the picture of a before and after listing of the some sports statistics. In the external DataTable, the record for Maryland was changed to Boston College. Notice the Grouping Engine placed the record in its proper sort position.