private void login()
{
string name = username.Text;
string pwd = password.Text;
if (name == "" || pwd == "")
{
MessageBox.Show("用户名或密码不能为空...");
}
else
{
userService userSer = new userService();
User user = new User();
user.LoginName = name;
user.Password = pwd;
user = userSer.checkLogin(user);
if (user == null)
{
MessageBox.Show("登录失败, 可能错误的消息是" + DBHelper.Message);
username.Text = "";
password.Text = "";
username.Focus();
}
else
{
ThirdData.user = user;
MainForm main = new MainForm();
main.Show();
this.Hide();
timer1.Enabled = false;
}
}
}
/// <summary>
/// 验证用户登录
/// </summary>
/// <param name="user"></param>
/// <returns></returns>
public User checkLogin(User user)
{
User returnUser = null;
string sql = "select * from users where loginName = @name and password = @pwd";
SqlParameter[] value = new SqlParameter[]{
new SqlParameter("@name", user.LoginName),
new SqlParameter("@pwd", user.Password)
};
DataTable dt = DBHelper.GetDataTable(sql, value);
if(dt.Rows.Count > 0)
{
DataRow dr = dt.Rows[0];
returnUser = new User();
returnUser.LoginName = user.LoginName;
returnUser.Password = user.Password;
returnUser.Id = Convert.ToInt32(dr["id"]);
returnUser.RealName = dr["realName"].ToString();
}
return returnUser;
}
