When adding a node to a tree use:
A) treeView.Nodes[ parentIndex ].Nodes.Add(new TreeNode(ChildLabel))
B) treeView.Node[parentIndex].Add(new TreeNode(ChildLabel))
C) treeView.Node[parentIndex].Add(ChildLabel)
D) treeView.Node[parentIndex].Nodes.Add(ChildLabel)

Question

Quizplus · Accepted Answer

The best choice is A because it properly accesses the parent node using the parentIndex and then adds a new child node using the Add method. This method allows the addition of a new TreeNode object with a label set as ChildLabel. Option B is incorrect because the Add method is not accessible through the Node property. Option C is incorrect because it does not create a new TreeNode object. Option D is incorrect because it requires the creation of a new TreeNode object before adding it to the Nodes collection.

When Adding a Node to a Tree Use