property ExFolderView.AutoUpdate as Boolean
Retrieves or sets a value indicating whether the control refreshes its content when a shell object was changed, moved, or renamed.

TypeDescription
Boolean A Boolean expression that specifies whether the control gets automatically updated once a folder is changed, renamed or moved. 

the control receives notification messages each time the directory structure is changed, and so can update its list, if this property is True. If the structure is changed, the control updates itself accordingly. For example, if a user starts Explorer and renames a directory, and this property is set to True, change will take effect also in the control. If set to False, the control is not changed until the user manually forces refreshing the control. The control fires the FolderUpdate event when the control requires refreshing based on change notification on directory structure.