using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;

public partial class _Default : System.Web.UI.Page
{
SqlConnection con = new SqlConnection
(“Data Source=.\\SQLEXPRESS;AttachDbFilename
=|DataDirectory|\\Database.mdf;Integrated
Security=True;User Instance=True”);
SqlCommand cm = new SqlCommand();
SqlDataAdapter ad = new SqlDataAdapter();

protected void Page_Load(object sender, EventArgs e)
{

}
protected void Login_Click(object sender, EventArgs e)
{
try
{
con.Open();
cm = new SqlCommand(“SELECT * FROM Login”, con);
DataTable tbl = new DataTable();
ad.SelectCommand = cm;
ad.Fill(tbl);
int cnt = tbl.Rows.Count;
for (int i = 0; i < cnt; i++)
{
if (UserName.Text == tbl.Rows[i].ItemArray[0].ToString() &&
Password.Text == tbl.Rows[i].ItemArray[1].ToString())
{
Response.Redirect(“~/Users/Default.aspx”);
}
else if ((i + 1) == cnt)
{
UserLiteral.Visible = true;
PassLiteral.Visible = true;
}
}
}
catch (SqlException ex)
{
UserLiteral.Visible = true;
PassLiteral.Visible = true;
ErrorMessage.Text = ex.Message;
}
finally
{
con.Close();
}
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
this.Response.Redirect(“Register.aspx”);
}
}

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;

public partial class Register : System.Web.UI.Page
{
SqlConnection con = new SqlConnection
(“Data Source=.\\SQLEXPRESS;AttachDbFilename
=|DataDirectory|\\Database.mdf;Integrated
Security=True;User Instance=True”);
SqlCommand cm = new SqlCommand();
SqlDataAdapter Ad = new SqlDataAdapter();

protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
try
{
con.Open();
cm = new SqlCommand
(“INSERT INTO Register (UserName, Fname, Lname, Email, Password)” +
“VALUES (@u, @f, @l, @e, @p)”, con);
cm.Parameters.AddWithValue(“@u”, TextBox1.Text);
cm.Parameters.AddWithValue(“@f”, TextBox2.Text);
cm.Parameters.AddWithValue(“@l”, TextBox3.Text);
cm.Parameters.AddWithValue(“@e”, TextBox4.Text);
cm.Parameters.AddWithValue(“@p”, TextBox5.Text);
Ad.InsertCommand = cm;
Ad.InsertCommand.ExecuteNonQuery();
con.Close();
try
{
con.Open();
cm = new SqlCommand
(“INSERT INTO Login (UserName, Password) VALUES (@u,@p)”, con);
cm.Parameters.AddWithValue(“@u”, TextBox1.Text);
cm.Parameters.AddWithValue(“@p”, TextBox5.Text);
Ad.InsertCommand = cm;
Ad.InsertCommand.ExecuteNonQuery();
con.Close();
}
catch (SqlException ex)
{
Literal1.Text = ex.Message;
}
}
catch (SqlException ex)
{
Literal1.Text = ex.Message;
}
finally
{
Response.Redirect(“Users/Books.aspx”);
}
}
}