using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class Form1 : System.Windows.Forms.Form {
private System.Windows.Forms.DataGrid grdOrders;
private System.Windows.Forms.DataGrid grdOrderDetails;
private System.Windows.Forms.DataGrid grdCustomers;
public Form1() {
SqlConnection cn = new SqlConnection(@"data source=(local);uid=sa;password=;database=northwind");
DataSet ds = new DataSet("CustOrders");
SqlDataAdapter daCust = new SqlDataAdapter("select * from customers;select * from orders;select * from [order details]", cn);
daCust.Fill(ds);
ds.Relations.Add("CustOrder", ds.Tables["Table"].Columns["customerid"], ds.Tables["Table1"].Columns["customerid"]);
ds.Relations.Add("OrderDetail", ds.Tables["Table1"].Columns["orderid"], ds.Tables["Table2"].Columns["orderid"]);
grdCustomers.DataSource = ds;
grdCustomers.DataMember = "Table";
grdOrders.DataSource = ds;
grdOrders.DataMember = "Table.CustOrder";
grdOrderDetails.DataSource = ds;
grdOrderDetails.DataMember = "Table.CustOrder.OrderDetail";
this.grdCustomers = new System.Windows.Forms.DataGrid();
this.grdOrders = new System.Windows.Forms.DataGrid();
this.grdOrderDetails = new System.Windows.Forms.DataGrid();
((System.ComponentModel.ISupportInitialize)(this.grdCustomers)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.grdOrders)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.grdOrderDetails)).BeginInit();
this.SuspendLayout();
//
this.grdCustomers.AllowNavigation = false;
this.grdCustomers.DataMember = "";
this.grdCustomers.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.grdCustomers.Location = new System.Drawing.Point(40, 16);
this.grdCustomers.Name = "grdCustomers";
this.grdCustomers.Size = new System.Drawing.Size(448, 152);
this.grdCustomers.TabIndex = 0;
//
this.grdOrders.AllowNavigation = false;
this.grdOrders.DataMember = "";
this.grdOrders.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.grdOrders.Location = new System.Drawing.Point(40, 176);
this.grdOrders.Name = "grdOrders";
this.grdOrders.Size = new System.Drawing.Size(448, 144);
this.grdOrders.TabIndex = 1;
//
this.grdOrderDetails.DataMember = "";
this.grdOrderDetails.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.grdOrderDetails.Location = new System.Drawing.Point(40, 328);
this.grdOrderDetails.Name = "grdOrderDetails";
this.grdOrderDetails.Size = new System.Drawing.Size(448, 136);
this.grdOrderDetails.TabIndex = 2;
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(528, 483);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.grdOrderDetails,
this.grdOrders,
this.grdCustomers});
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize)(this.grdCustomers)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.grdOrders)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.grdOrderDetails)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main() {
Application.Run(new Form1());
}
}