string conn = "server=.;database=login;user id=sa;pwd=123";
SqlConnection cn = new SqlConnection(conn);
cn.Open();
string strsql = "select user_name,user_pwd from admin where user_name='" TextBox1.Text "' or user_pwd='" TextBox2.Text "'";
SqlCommand cmd = new SqlCommand(strsql, cn);
SqlDataReader rd = cmd.ExecuteReader();
if (rd.Read())
{
if (rd.GetValue(0).ToString() == TextBox1.Text)
{
if (rd.GetValue(1).ToString() == TextBox2.Text)
{
Response.Redirect("Default.aspx");
}
else
{
Response.Write("<script>alert('密码错误！')</script>");
}
}
else
{
Response.Write("<script>alert('用户名错误！')</script>");
}
}
else
{
Response.Write("<script>alert('用户不存在！')</script>");
}
}
文章整理：西部数码--专业提供域名注册、虚拟主机服务
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