Forgot Password in ASP.NET

hEYY!

follow these steps:
1: first of all verify that the user who forgot his password is registered or valid user
   (you can do that through security question or any unique field according to you)

2: create a new page for user validation
3: create a code for updation in database on button click event and store it to ur database
   
code as
protected void Button_Click(object sender, EventArgs e)
    {

        string strcon = ConfigurationManager.ConnectionStrings["connection"].ConnectionString;
        SqlConnection con = new SqlConnection(strcon);
        con.Open();
        SqlCommand cmd = new SqlCommand("Update table ABC set N= @N where S= @S", con);
        cmd.Parameters.Add("@N", SqlDbType.NVarChar).Value = TextBox1.Text;
        cmd.Parameters.Add("@S", SqlDbType.Decimal).Value = TextBox2.Text;
        int rowseffected = cmd.ExecuteNonQuery();
    }
  
thats all! :)