{"id":12918,"date":"2024-03-15T01:38:17","date_gmt":"2024-03-15T01:38:17","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-add-a-node-to-a-treeview-control\/"},"modified":"2025-08-05T08:42:22","modified_gmt":"2025-08-05T08:42:22","slug":"how-to-add-a-node-to-a-treeview-control","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-add-a-node-to-a-treeview-control\/","title":{"rendered":"Add Node to TreeView Control: Quick Guide"},"content":{"rendered":"<p>To add nodes in a treeview control, you can utilize the Add method of the Nodes collection. Below is an example code:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u6839\u8282\u70b9<\/span>\r\nTreeNode rootNode = <span class=\"hljs-keyword\">new<\/span> TreeNode(<span class=\"hljs-string\">\"\u6839\u8282\u70b9\"<\/span>);\r\n\r\n<span class=\"hljs-comment\">\/\/ \u6dfb\u52a0\u5b50\u8282\u70b9<\/span>\r\nTreeNode childNode1 = <span class=\"hljs-keyword\">new<\/span> TreeNode(<span class=\"hljs-string\">\"\u5b50\u8282\u70b91\"<\/span>);\r\nTreeNode childNode2 = <span class=\"hljs-keyword\">new<\/span> TreeNode(<span class=\"hljs-string\">\"\u5b50\u8282\u70b92\"<\/span>);\r\n\r\nrootNode.Nodes.Add(childNode1);\r\nrootNode.Nodes.Add(childNode2);\r\n\r\n<span class=\"hljs-comment\">\/\/ \u5c06\u6839\u8282\u70b9\u6dfb\u52a0\u5230treeview\u63a7\u4ef6\u4e2d<\/span>\r\ntreeView1.Nodes.Add(rootNode);\r\n<\/code><\/pre>\n<p>In the given example, start by creating a root node. Then use the Add method to add child nodes to the root node&#8217;s Nodes collection. Finally, use the Add method of the Nodes collection to add the root node to the treeview control&#8217;s Nodes collection.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To add nodes in a treeview control, you can utilize the Add method of the Nodes collection. Below is an example code: \/\/ \u521b\u5efa\u4e00\u4e2a\u6839\u8282\u70b9 TreeNode rootNode = new TreeNode(&#8220;\u6839\u8282\u70b9&#8221;); \/\/ \u6dfb\u52a0\u5b50\u8282\u70b9 TreeNode childNode1 = new TreeNode(&#8220;\u5b50\u8282\u70b91&#8221;); TreeNode childNode2 = new TreeNode(&#8220;\u5b50\u8282\u70b92&#8221;); rootNode.Nodes.Add(childNode1); rootNode.Nodes.Add(childNode2); \/\/ \u5c06\u6839\u8282\u70b9\u6dfb\u52a0\u5230treeview\u63a7\u4ef6\u4e2d treeView1.Nodes.Add(rootNode); In the given example, start by creating a root [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[17034,274,799,17033,4122],"class_list":["post-12918","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-add-node","tag-c","tag-programming-tutorial","tag-treeview-control","tag-windows-forms"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Add Node to TreeView Control: Quick Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to add nodes to a TreeView control with code examples. 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