using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OleDb;
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.TextBox textBox4;
public Form1()
{
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox3 = new System.Windows.Forms.TextBox();
this.textBox4 = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// label1
//
this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label1.Location = new System.Drawing.Point(0, 0);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(232, 48);
this.label1.TabIndex = 0;
this.label1.Text = "Data Readers";
//
// button1
//
this.button1.Location = new System.Drawing.Point(128, 232);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "Read data";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(8, 56);
this.textBox1.Multiline = true;
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(72, 152);
this.textBox1.TabIndex = 2;
this.textBox1.Text = "";
//
// textBox2
//
this.textBox2.Location = new System.Drawing.Point(88, 56);
this.textBox2.Multiline = true;
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(72, 152);
this.textBox2.TabIndex = 3;
this.textBox2.Text = "";
//
// textBox3
//
this.textBox3.Location = new System.Drawing.Point(168, 56);
this.textBox3.Multiline = true;
this.textBox3.Name = "textBox3";
this.textBox3.Size = new System.Drawing.Size(72, 152);
this.textBox3.TabIndex = 4;
this.textBox3.Text = "";
//
// textBox4
//
this.textBox4.Location = new System.Drawing.Point(248, 56);
this.textBox4.Multiline = true;
this.textBox4.Name = "textBox4";
this.textBox4.Size = new System.Drawing.Size(72, 152);
this.textBox4.TabIndex = 5;
this.textBox4.Text = "";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(328, 273);
this.Controls.Add(this.textBox4);
this.Controls.Add(this.textBox3);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.button1);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{
string connection1String = "Provider=SQLOLEDB;Data Source=;User ID=sa;Initial Catalog=pubs;";
OleDbConnection connection1 = new OleDbConnection(connection1String);
OleDbCommand command1 = new OleDbCommand("select * from authors", connection1);
connection1.Open();
OleDbDataReader reader1 = command1.ExecuteReader(CommandBehavior.CloseConnection);
DataTable schemaTable = reader1.GetSchemaTable();
textBox1.Text += schemaTable.Rows[0][0].ToString() + "\r\n";
textBox2.Text += schemaTable.Rows[1][0].ToString() + "\r\n";
textBox3.Text += schemaTable.Rows[2][0].ToString() + "\r\n";
textBox4.Text += schemaTable.Rows[3][0].ToString() + "\r\n";
while (reader1.Read())
{
if (schemaTable.Rows[0][5].ToString() == "System.String") {
textBox1.Text += reader1.GetString(0) + "\r\n";
}
if (schemaTable.Rows[0][5].ToString() == "System.Boolean") {
textBox1.Text += reader1.GetBoolean(0).ToString() + "\r\n";
}
if (schemaTable.Rows[1][5].ToString() == "System.String") {
textBox2.Text += reader1.GetString(1) + "\r\n";
}
if (schemaTable.Rows[1][5].ToString() == "System.Boolean") {
textBox2.Text += reader1.GetBoolean(1).ToString() + "\r\n";
}
if (schemaTable.Rows[2][5].ToString() == "System.String") {
textBox3.Text += reader1.GetString(2) + "\r\n";
}
if (schemaTable.Rows[2][5].ToString() == "System.Boolean") {
textBox3.Text += reader1.GetBoolean(2).ToString() + "\r\n";
}
if (schemaTable.Rows[3][5].ToString() == "System.String")
{
textBox4.Text += reader1.GetString(3) + "\r\n";
}
if (schemaTable.Rows[3][5].ToString() == "System.Boolean") {
textBox4.Text += reader1.GetBoolean(3).ToString() + "\r\n";
}
}
reader1.Close();
connection1.Close();
}
}
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