password is showing in view source of browser in asp.net 4.0

Question

i am using (remember me username and password when i login next time ) it working well when i login next time , both username and password automatically filled but the problem is when i click on on viewsource of browser it showing the password as plain text like  

<input name="PasswordForLogin" type="password" id="PasswordForLogin" value="123" />  

 

i am using this code below

 

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

if (Request.Cookies["username"] != null)

{

UsernameForLogin.Text = Request.Cookies["username"].Value;

}

if (Request.Cookies["password"] != null)

{

PasswordForLogin.Attributes["value"] = Request.Cookies["password"].Value;

}

if (Request.Cookies["username"] != null && Request.Cookies["password"] != null)

{

CheckBox1.Checked = true;

}

 

}

}

// and login button 

 

protected void Button3_Click(object sender, EventArgs e)

{

if (UsernameForLogin.Text != "" && PasswordForLogin.Text != "")

{

string str = "select * from Users where sloginname=@sloginname and spassword=@spassword";

con.Open();

SqlCommand cmd = new SqlCommand();

cmd.Parameters.AddWithValue("@sloginname", UsernameForLogin.Text);

cmd.Parameters.AddWithValue("@spassword", PasswordForLogin.Text);

cmd.Connection = con;

cmd.CommandText = str;

SqlDataReader rdr;

rdr = cmd.ExecuteReader();

if (rdr.Read())

{

if (CheckBox1.Checked == true)

{

Response.Cookies["username"].Value = UsernameForLogin.Text;

Response.Cookies["password"].Value = PasswordForLogin.Text;

Response.Cookies["username"].Expires = DateTime.Now.AddDays(15);

Response.Cookies["password"].Expires = DateTime.Now.AddDays(15);

}

else

{

Response.Cookies["username"].Expires = DateTime.Now.AddDays(-1);

Response.Cookies["password"].Expires = DateTime.Now.AddDays(-1);

}

Session["username"] = rdr[3].ToString();

Session["password"] = rdr[4].ToString();

Session["Studentid"] = rdr[0].ToString();

Session["firstname"] = rdr[1].ToString();

Session["lastname"] = rdr[2].ToString();

Response.Redirect("~/users_main.aspx");

}

else

{

Label2.Visible = true;

Label2.ForeColor = System.Drawing.Color.Red;

Label2.Text = "re-enter username or password";

}

con.Close();

}

else

{

Label2.Visible = true;

Label2.ForeColor = System.Drawing.Color.Red;

Label2.Text = "please enter username or password both";

}

}

thanks for the help