![]() ![]() Also note that making a child invisible will also make all // children/grandchildren of the child invisible too - nice. i starts from 1 because we don't // want to affect the visiblity of 0th child which is this MouseArea itself. Altering // it's visiblity serves no purpose and is wasteful so thus we avoid looping // over it by - 1. remember that Repeater is also a child of objRecursiveColumn. JavaScript object for the ListModel should look like: If you get the examples in the Background section to this article, this should be easy to follow. Further every node of the tree shall contain two data members - one the name field (for the name of the node) and the other a chain (like the Repeater above) for attaching the sub-nodes (child nodes). Other operations should be all trivial once this much is clear. So let's build one such tree that allows dynamic addition of nodes anywhere legal. Any update (dynamic) of such object-lists will directly affect the tree due to QML bindings, either adding nodes to the tree or removing from it. If the 2nd member is an empty object-list, the recursion stops and no further subnodes get attached/created. This 2nd member can then be used as a source model ( someModel above) to Repeater's model member. One simple way to imagine is exposing an object list of objects with each object having a normal role-field which objData1 would use and another role-field which is an object-list of similar objects as itself. We must provide a way such that someModel is controllable for every new instantiation of object from objRecursiveComponent. If someModel is numeric and > 0 or object list with length > 0 then this would lead to infinite recursion. Here objData can be viewed as data members for a node and Repeater is there to add further sub-nodes - that is what a tree is like.
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