property XMLGrid.AllowDuplicateEntries as Boolean
Returns or sets a value that specifies whether the control supports nodes with the same key ( duplicates ).

TypeDescription
Boolean A Boolean expression that specifies whether the control allows adding nodes with the same key.
By default, the AllowDuplicateEntries property is False, which indicates that nodes with the same key can not be added. Use the AllowDuplicateEntries property on True, to allow adding new nodes with the same key. You can change the AllowDuplicateEntries property only, if the control's Nodes collection is empty. The Add method of Nodes collection adds a new node to the Nodes collection.