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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
namespace DataView
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
SqlConnection con=new SqlConnection("Data Source=(local);Initial Catalog=Northwind;Integrated Security=SSPI");
DataSet dsOrders=new DataSet();
private System.Windows.Forms.ComboBox cboCustomers;
private System.Windows.Forms.DataGrid dgOrders;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.cboCustomers = new System.Windows.Forms.ComboBox();
this.dgOrders = new System.Windows.Forms.DataGrid();
((System.ComponentModel.ISupportInitialize)(this.dgOrders)).BeginInit();
this.SuspendLayout();
//
// cboCustomers
//
this.cboCustomers.Location = new System.Drawing.Point(48, 32);
this.cboCustomers.Name = "cboCustomers";
this.cboCustomers.Size = new System.Drawing.Size(168, 21);
this.cboCustomers.TabIndex = 0;
this.cboCustomers.Text = "comboBox1";
this.cboCustomers.SelectedIndexChanged += new System.EventHandler(this.cboCustomers_SelectedIndexChanged);
//
// dgOrders
//
this.dgOrders.DataMember = "";
this.dgOrders.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dgOrders.Location = new System.Drawing.Point(48, 72);
this.dgOrders.Name = "dgOrders";
this.dgOrders.Size = new System.Drawing.Size(176, 112);
this.dgOrders.TabIndex = 1;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.Add(this.dgOrders);
this.Controls.Add(this.cboCustomers);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.dgOrders)).EndInit();
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void cboCustomers_SelectedIndexChanged(object sender, System.EventArgs e)
{
System.Data.DataView dv=new System.Data.DataView(dsOrders.Tables["ORDERS"]);
dv.RowFilter="CustomerID='" + cboCustomers.SelectedValue + "'";
dgOrders.DataSource=dv;
}
private void Form1_Load(object sender, System.EventArgs e)
{
SqlCommand cmd=con.CreateCommand();
cmd.CommandType=CommandType.Text;
cmd.CommandText="SELECT * FROM ORDERS";
SqlDataAdapter daOrders=new SqlDataAdapter();
daOrders.SelectCommand=cmd;
daOrders.Fill(dsOrders,"Orders");
SqlCommand cmdCustomers=con.CreateCommand();
cmdCustomers.CommandType=CommandType.Text;
cmdCustomers.CommandText="SELECT CustomerID, CompanyName FROM Customers ORDER BY CompanyName";
DataSet dsCust=new DataSet();
SqlDataAdapter daCust=new SqlDataAdapter();
daCust.SelectCommand=cmdCustomers;
daCust.Fill(dsCust,"Customers");
cboCustomers.DataSource=dsCust.Tables["Customers"];
cboCustomers.DisplayMember="CompanyName";
cboCustomers.ValueMember="CustomerID";
}
}
} |
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