1。treeview代码书写
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private void Form1_Load(object sender, EventArgs e){<br> //代码为TreeView添加子项 treeView1.ContextMenuStrip = contextMenuStrip1; TreeNode tn = new TreeNode("默认"); treeView1.Nodes.Add(tn);}private void button1_Click(object sender, EventArgs e){<br> //代码为TreeView添加子项 string text = textBox1.Text; TreeNode tn = new TreeNode(text); TreeNode tr = treeView1.SelectedNode; tr.Nodes.Add(tn);}private void 删除ToolStripMenuItem_Click(object sender, EventArgs e){<br> //删除选中项 treeView1.SelectedNode.Remove();} |
2.XML基本用法
1XML文件
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<?xml version="1.0" encoding="utf-8" ?><Computers> <Computer typr="222"> <Name>LenovoY460</Name> <Price>5000</Price> <CPU>酷睿i3</CPU> </Computer> <Computer typr="2223"> <Name>Dell</Name> <Price>7000</Price> <CPU>酷睿i7</CPU> </Computer> </Computers> |
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XmlDocument doc = new XmlDocument(); doc.Load("XMLFile1.xml"); XmlNode xn = doc.DocumentElement; foreach (XmlNode item in xn.ChildNodes) { //foreach (XmlNode item1 in item.ChildNodes) { // switch (item1.Name) { // case "Name": // Console.WriteLine("电脑的名字是：" + item1.InnerText); // break; // case "Price": // Console.WriteLine("电脑的价格是：" + item1.InnerText); // break; // case "CPU": // Console.WriteLine("电脑的CPU是：" + item1.InnerText); // break; // } //} Console.WriteLine(item.Attributes["typr"].Value); Console.WriteLine("电脑的名字是：" + item["Name"].InnerText); Console.WriteLine("电脑的Price是：" + item["Price"].InnerText); Console.WriteLine("电脑的CPU是：" + item["CPU"].InnerText); } Console.ReadKey(); |