private void bntOK_Click(object sender, EventArgs e) { if (txtUser.Text == "") { MessageBox.Show("用户名不能为空!", "提示"); txtUser.Focus(); return; } if (txtPassword.Text == "") { MessageBox.Show("密码不能为空!", "提示"); txtPassword.Focus(); return; } Userclass tbClass = new Userclass(); tbClass.strUserEng = txtUser.Text; tbClass.strPasword = txtPassword.Text; if (tbClass.tbUserLogIn(tbClass) == 1) { FormMain frman = new FormMain(); frman.Show(); this.Hide(); } else { MessageBox.Show("登录失败!", "提示"); txtPassword.Text = ""; txtUser.Text = ""; } }
public int tbUserLogIn(Userclass Customer) { DataBase tbuser = new DataBase(); int intFalg = 0; try { //MySqlConnection sqlcon = addnc.getcon(); string select = "select * from tbUser where username='******' and password='******'"; MySqlDataReader reader = null; tbuser.getcon(); MySqlCommand cmd = new MySqlCommand(select, tbuser.My_Conn); reader = cmd.ExecuteReader(); reader.Read(); if (reader.HasRows) { intFalg = 1; } return(intFalg); } catch (Exception ee) { return(intFalg); } }