Contains

Checks whether the specified DiagramNode is contained within the collection.

CopyTo

Copies a range of elements from this collection to a compatible one-dimensional System.Array, starting at the specified index of the target array. (Inherited from ReadOnlyCollection.)

GetEnumerator

Returns an enumerator that iterates through the collection. (Inherited from ReadOnlyCollection.)

IndexOf

Searches for the specified DiagramNode and returns the 0-based index of the first occurrence within the entire collection.