Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)delvpublished in(发表于) 2014/1/6 9:01:24 asp.net2.0实现主从数据表的简单方法_[Asp.Net教程]
实现效果：在主表里选中某行，从表里得出该行的详情。
方法1：代码实现。在页面上放一个GridView，一个DetailView。数据绑定GridView并且要设置主键，然后在SelectedIndexChanged事件写代码：选择发生变化时，DetailView也改变为相应的Detail。具体代码：using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;
public partial class MasterDetail2 : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { string SQL = "SELECT * FROM [Orders]"; GridView1.DataSource = Binding(SQL); GridView1.DataKeyNames = new string[] { "OrderID" }; GridView1.DataBind(); } }
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e) { string OrderID = Convert.ToString(GridView1.SelectedValue); string SQL = "SELECT * FROM [OrderDetails] WHERE [OrderID]='" + OrderID + "'"; DetailsView1.DataSource = Binding(SQL); DetailsView1.DataBind(); }
/**//// /// 执行SQL语句返回一个数据表 /// /// 所要执行的SQL语句 /// DataTable protected DataTable Binding(string SQL) { SqlConnection myConn = new SqlConnection(ConfigurationManager.ConnectionStrings["AppConnectionString1"].ConnectionString); DataTable dt=new DataTable(); SqlDataAdapter myAdapter = new SqlDataAdapter(SQL, myConn); myAdapter.Fill(dt); return dt;
}}方法2：设置控件属性实现在页面上放一个GridView，一个DetailView，然后每个对应一个数据源。只要在DetailView的数据源的SelectCommand里使用GridView的SelectedValue作为参数，即可实现。 Type="Int32" /> 两种方法都很简单，方法2基本无代码实现，方法1控制更灵活。
赞