private bool NewWarehouseLocation(string itemID)
{
WarehouseLocation newItem = new WarehouseLocation();
//all new records will be give a negative int autoid...
//when they are updated then sql will generate one for them overiding this set value...
//it will allow us to give uniqueness to the tempory new records...
//Before they are updated to the entity and given an autoid...
//we use a negative number and keep subtracting by 1 for each new item added...
//This will allow it to alwasy be unique and never interfere with SQL's positive autoid...
_newWarehouseLocationAutoId = _newWarehouseLocationAutoId - 1;
newItem.AutoID = _newWarehouseLocationAutoId;
newItem.WarehouseLocationID = itemID;
newItem.CompanyID = ClientSessionSingleton.Instance.CompanyID;
newItem.IsValid = 1;
newItem.NotValidMessage = "New Record Key Field/s Are Required.";
WarehouseLocationList.Add(newItem);
_serviceAgent.AddToWarehouseLocationRepository(newItem);
SelectedWarehouseLocation = WarehouseLocationList.LastOrDefault();
AllowEdit = true;
Dirty = false;
AllowKeyEntry = true;
return(true);
}