private void btn_add_activity_Click(object sender, EventArgs e) { if (this.ValidateChildren()) { var activity = new Activity { Description = txt_activity_description.Text, EstimatedPomodoros = int.Parse(txt_activity_estimate.Text), ActualPomodoros = 0, Interruptions = 0, IsActiveTask = false, IsCompleted = false }; SQLiteCommand cmd = new SQLiteCommand(activity.MakeInsertStatement(), Program.connection); Program.connection.Open(); cmd.ExecuteNonQuery(); Program.connection.Close(); txt_activity_description.Clear(); txt_activity_description.Focus(); txt_activity_estimate.Clear(); ReloadListBoxes(); } }