MD.CloudConnect.Data.TrackingData.ContainsField C# (CSharp) Method

        public bool ContainsField(string fieldName)
        {
            return fields.ContainsKey(fieldName);
        }

        private void FillTrackingDataUserChoice(ITracking data, TrackingData history, bool updateCache = true)
        {
            bool fixMovementValue = false;

            foreach (string field in _fieldsUse)
            {
                /* Fix Movement before to update data cache */
                if (field == MD.CloudConnect.FieldDefinition.MVT_STATE.Key && _fixMoving)
                {
                    fixMovementValue = IsInMovement(data, history);

                    if (data.ContainsField(MD.CloudConnect.FieldDefinition.MVT_STATE.Key))
                        data.IsMoving = fixMovementValue;
                    else if (history.ContainsField(MD.CloudConnect.FieldDefinition.MVT_STATE.Key))
                        history.IsMoving = fixMovementValue;
                }
                /* End Fix Movement*/

                if (data.ContainsField(field))
                {
                    if (updateCache)
                    {
                        UpdateCache(history, field, data);
                    }
                }
                else
                {
                    if (history.fields.ContainsKey(field))
                        ((TrackingData)data).fields.Add(field, history.fields[field]);
                    else
                        ((TrackingData)data).fields.Add(field, new Field());
                }
            }

            if (((TrackingData)data).location == null)
            {
                ((TrackingData)data).location = (double[])history.location.Clone();
            }
            else
            {
                history.location[0] = data.Longitude;
                history.location[1] = data.Latitude;
            }
        }