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网上转载页面代码<%@PageTitle=""Language="C#"MasterPageFile="~/Site.Master"AutoEventWireup="true"CodeBehind="Default.aspx.cs"Inherits="MyTestWebApp.JsonData.Default"%><asp:ContentID="Content1"ContentPlaceHolderID="HeadContent 阅读全文
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/// <summary> /// 自定义加密方法，该方法用来加密指定的字符串 /// </summary> /// <param name="str">要加密的字符串</param> /// <returns>返回加密后的字符串</returns> public string Encrypting(string str) { //把要加密的字符串存储到byte数组中 byte[] bytIn = System.Text.Encoding.Default.GetBytes(str); //创建加密对象的 阅读全文
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//定义Person类型数组 Person[] arr = new Person[] { new Person("小李",30,"软件开发"), new Person("小王",26,"软件开发"), new Person("小张",27,"软件测试") }; //投影操作，插入了索引值 var result = arr.Select((p, index) => new { index, p.P_name, p.P_dept ,p.P_age}); for... 阅读全文
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List<string> color = new List<string>() { "red", "yellow", "green", "black", "blue" }; //使用where子句 var result = from c in color where c.Length > 4 select c; //使用Where操作符 var result2 = color.Where(u => u.IndexOf("ll") > 阅读全文
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//创建XmlWriter实例 using (XmlWriter xw = XmlWriter.Create(Server.MapPath("user.xml"))) { xw.WriteComment("图书信息");//注释语句 //根节点开始 xw.WriteStartElement("Info"); //定义子节点Record xw.WriteStartElement("Record"); xw.WriteAttributeString(... 阅读全文
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//创建XmlReader实例 using (XmlReader xr = XmlReader.Create(Server.MapPath("info.xml"))) { while (xr.Read()) { //根据节点类型输出内容 switch (xr.NodeType) { case XmlNodeType.Element://节点开始符号及其属性 Response.Write(... 阅读全文
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SerchXMLprotected void btnSelect_Click(object sender, EventArgs e) { XmlDocument doc = new XmlDocument(); doc.Load(Server.MapPath("book.xml"));//加载XML文件 XmlNodeList nodes; XmlElement root = doc.DocumentElement;//获得根节点 nodes = root.SelectNodes("descendant::Book[Name... 阅读全文
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protected void btnRead_Click(object sender, EventArgs e) { DataSet ds = new DataSet(); ds.ReadXml(Server.MapPath("Employee.xml"));//读取XML文件 //GridView控件配置数据源 gvEmployee.DataSource = ds; gvEmployee.DataBind(); } protected void btnWrite_Click(object sender, Eve... 阅读全文
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using (Conn = new SqlConnection(ConnectionString)) { Conn.Open();//打开数据库连接 string sqlstr = "select * from UserInfo2;select * from UserOrder";//两条SQL语句 SqlCommand cmd = new SqlCommand(sqlstr, Conn); SqlDataReader dr = cmd.ExecuteReader(CommandBehavior.Close... 阅读全文
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DataAdapter批量插入数据using (Conn = new SqlConnection(ConnectionString)){ Conn.Open();//打开数据库连接 string sqlstr = "select * from UserInfo2"; SqlDataAdapter da = new SqlDataAdapter(); SqlCommand insertcmd = new SqlCommand(sqlstr, Conn);//创建Command实例 SqlCommandBuilder cb = new SqlCommandBuilder(da) 阅读全文