private async void btnConnect_Click(object sender, EventArgs e) { CConnectionContext cc = new CConnectionContext(txtHost.Text, 20903, txtUser.Text, txtPassword.Text); m_spSql = new CSocketPool <COdbc>(false); //set event for MySQL/Mariadb database shutdown m_spSql.SocketPoolEvent += new CSocketPool <COdbc> .DOnSocketPoolEvent(m_spSql_SocketPoolEvent); if (!m_spSql.StartSocketPool(cc, 1)) { txtMessage.Text = "No connection to " + txtHost.Text; return; } COdbc sql = m_spSql.AsyncHandlers[0]; //set event for tracking all database table update events, delete, update and insert m_spSql.Sockets[0].Push.OnPublish += new DOnPublish(Push_OnPublish); //create a DB session with default to sample database sakila var tOpen = sql.open("sakila", DB_CONSTS.ENABLE_TABLE_UPDATE_MESSAGES); m_ds = new DataSet("real-time cache"); DataTable dt = null; //query all cached tables into client side for intial cache data var res = await sql.execute("", (h, data) => { //this callback is fired from worker thread from socket pool thread COdbc.AppendRowDataIntoDataTable(data, dt); }, (h) => { //this callback is fired from worker thread from socket pool thread dt = COdbc.MakeDataTable(h.ColumnInfo); string name = h.ColumnInfo[0].DBPath + "." + h.ColumnInfo[0].TablePath; dt.TableName = name; m_ds.Tables.Add(dt); }); txtMessage.Text = res.em; lstTables.Items.Clear(); foreach (DataTable table in m_ds.Tables) { lstTables.Items.Add(table.TableName); } if (m_ds.Tables.Count > 0) { lstTables.SelectedIndex = 0; } btnDisconnect.Enabled = (res.ec == 0); btnConnect.Enabled = (res.ec != 0); }