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摘要： string sqlcon = ConfigurationManager.ConnectionStrings["sqlservercon"].ConnectionString; protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) { GetProvince(); } } public void GetProvince() { SqlConnection conn = new SqlConnection(sqlcon); conn.Open(); SqlCommand cmd=new S 阅读全文

摘要： public partial class WebForm2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) { LoadProvince(); } } /// <summary> /// 省份 /// </summary> public void LoadProvince() { BLL.province bpro = new BLL.province(); DataTable dt = bpro.GetList("&qu 阅读全文

摘要： 新建一个类库，然后添加一个”电脑“类，如下： public class Computer { public Computer() { } public Computer(string brand,string model,double price,string color) { this.Brand = brand; this.Model = model; this.Price = price; this.Color = color; } public string Brand { get; set; } public string Model { get; set; } public dou 阅读全文