3 references to IndexOf
System.Windows.Forms (3)
System\Windows\Forms\Controls\TreeView\TreeNode.TreeNodeAccessibleObject.cs (1)
122internal int Index => _owningTreeView.Nodes.IndexOf(_owningTreeNode);
System\Windows\Forms\Controls\TreeView\TreeNodeCollection.cs (2)
369public bool Contains(TreeNode node) => IndexOf(node) != -1; 393? IndexOf(treeNode)