public partial class Form1 : Form{public Form1(){InitializeComponent();}string tag = "True";StringBuilder nodesTag;/// <summary>/// 全選/// </summary>/// <param name="treeNode"></param>/// <param name="nodeChecked"></param>private void CheckAllChildNodes(TreeNode treeNode, bool nodeChecked){foreach (TreeNode node in treeNode.Nodes){node.Checked = nodeChecked;node.Tag = tag;////記得在這里為選中的項(xiàng)目設(shè)置tag屬性if (node.Nodes.Count > 0){this.CheckAllChildNodes(node, nodeChecked);}}}private void TraversNodes(TreeNode parent){TreeNode node = parent;if (node != null){if (node.Tag != null && node.Tag.ToString() == tag)nodesTag.AppendFormat("node:{0} has checked\n", node.Text);if (node.FirstNode != null)////如果node節(jié)點(diǎn)還有子節(jié)點(diǎn)則進(jìn)入遍歷 {TraversNodes(node.FirstNode);}if (node.NextNode != null)////如果node節(jié)點(diǎn)后面有同級(jí)節(jié)點(diǎn)則進(jìn)入遍歷 {TraversNodes(node.NextNode);}}}/// <summary>/// 已選中或取消選中框發(fā)生事件/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void treeView1_AfterCheck(object sender, TreeViewEventArgs e){if (e.Action != TreeViewAction.Unknown){TreeNode node = e.Node;if (node.Tag == null)node.Tag = tag;//附加結(jié)點(diǎn)信息elsenode.Tag = null;CheckAllChildNodes(e.Node, e.Node.Checked);//選中父節(jié)點(diǎn) bool bol = true;if (e.Node.Parent != null){for (int i = 0; i < e.Node.Parent.Nodes.Count; i++){if (!e.Node.Parent.Nodes[i].Checked)bol = false;}e.Node.Parent.Checked = bol;////記得如果父節(jié)點(diǎn)被選中或取消，記得設(shè)置它的tagif (bol){e.Node.Parent.Tag = tag;}else{e.Node.Parent.Tag = null;}}}}}

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轉(zhuǎn)載于:https://www.cnblogs.com/ruishuang208/p/4193120.html

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