Пример #1
0
        private void button_LOGIN_Click(object sender, EventArgs e)
        {
            MY_DB          db  = new MY_DB();
            SqlDataAdapter da  = new SqlDataAdapter();
            DataTable      dt  = new DataTable();
            SqlCommand     cmd = new SqlCommand("select * from LOGIN", db.getConnection);

            da.SelectCommand = cmd;
            da.Fill(dt);
            int count = dt.Rows.Count;

            if (count > 0)
            {
                for (int i = 0; i < count; i++)
                {
                    if (txtUsername.Text == dt.Rows[i]["username"].ToString().Trim() && txtPassword.Text == dt.Rows[i]["password"].ToString().Trim())
                    {
                        this.DialogResult = DialogResult.OK;
                    }
                }
                if (this.DialogResult != DialogResult.OK)
                {
                    MessageBox.Show("Invalid Username or Password", "Login error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }
Пример #2
0
        private void ButtonRegister_Click(object sender, EventArgs e)
        {
            if (chkAdmin.Checked == true)
            {
                MY_DB          db  = new MY_DB();
                SqlCommand     cmm = new SqlCommand("select * from LOGIN", db.getConnection);
                SqlDataAdapter da  = new SqlDataAdapter();
                DataTable      dt  = new DataTable();
                da.SelectCommand = cmm;
                da.Fill(dt);
                int        countRow = dt.Rows.Count;
                SqlCommand cmd      = new SqlCommand("insert into Login (id, username, password)" +
                                                     " values (@id, @user, @pass)", db.getConnection);
                cmd.Parameters.Add("@id", SqlDbType.Int).Value       = countRow;
                cmd.Parameters.Add("@user", SqlDbType.VarChar).Value = txtUsername.Text;
                cmd.Parameters.Add("@pass", SqlDbType.VarChar).Value = txtPassword.Text;

                db.openConnection();
                if (cmd.ExecuteNonQuery() == 1)
                {
                    db.closeConnection();
                }
                else
                {
                    db.closeConnection();
                }
                da.InsertCommand = cmd;
                da.Update(dt);
                MessageBox.Show("Sign up successful", "Adding...", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }
Пример #3
0
 private void BaiXeForm_Load(object sender, EventArgs e)
 {
     // TODO: This line of code loads data into the 'dataSetBaiXe.BAIXE' table. You can move, or remove it, as needed.
     this.bAIXETableAdapter.Fill(this.dataSetBaiXe.BAIXE);
     MY_DB db = new MY_DB();
     //SqlDataAdapter da = new SqlDataAdapter();
     //DataTable dt = new DataTable();
     SqlCommand cmd = new SqlCommand("select * from BAIXE", db.getConnection);
     //da.SelectCommand = cmd;
     //da.Fill(dt);
     //for (int i = 0; i < 20; i++)
     //{
     //    for (int j = 0; j < 10; j++)
     //    {
     //        if (Convert.ToInt32(dt.Rows[i][j]) == 0)
     //            dgvBaiXe.Rows[i].Cells[j].Value = false;
     //        else dgvBaiXe.Rows[i].Cells[j].Value = true;
     //    }
     //}
 }