protected void Button1_Click(object sender, EventArgs e)
{
Users user = bll.Sel(TextBox1.Text, TextBox2.Text).FirstOrDefault(u => u.UsersAccount == TextBox1.Text);
if (user != null && user.UsersPassword == TextBox2.Text)
{
Response.Write("<script>alert('s')</script>");
}
else
{
Response.Write("<script>alert('!!!')</script>");
return;
}
}