protected TreeViewItemViewModel(TreeViewItemViewModel parent, bool lazyLoadChildren)
{
_parent = parent;
_children = new ObservableCollection <TreeViewItemViewModel>();
if (lazyLoadChildren)
{
_children.Add(DummyChild);
}
}
/// <summary>
/// Move selected asset to new parent with new customer
/// Update open Asset windows
/// </summary>
/// <param name="assetid"></param>
/// <param name="newparentassetid"></param>
/// <param name="newcustomerid"></param>
public static void MoveAsset(int assetid, int newparentassetid, int newcustomerid)
{
Window owner = Application.Current.Windows[0];
FullyObservableCollection <TVCustomerViewModel> customers = (owner.DataContext as AssetTreeExViewModel).allcustomers;
TreeViewItemViewModel asset = null;
//get the node representing the asset
foreach (TVCustomerViewModel cm in customers)
{
asset = GetAssetDFS(cm, assetid);
if (asset != null)
{
break;
}
}
TVCustomerViewModel customer;
if (asset != null)
{
TreeViewItemViewModel parentasset = null;
//new parent id = 0 occurs when the asset is added directly to customer
if (newparentassetid != 0)
{
foreach (TVCustomerViewModel cm in customers)
{
parentasset = GetAssetDFS(cm, newparentassetid);
if (parentasset != null)
{
break;
}
}
}
else
{
parentasset = GetCustomerNode(newcustomerid);
}
//in error condition, check that parent asset is not null - rare but still should be checked
if (parentasset != null)
{
//check to see if asset is directly under a customer or if its under another asset
if ((asset as TVAssetViewModel).Asset.ParentAssetID == 0)
{
//get customer node from customerid
//remove asset node from customer node if customerid !=0
if ((asset as TVAssetViewModel).Asset.CustomerID != 0)
{
customer = GetCustomerNode((asset as TVAssetViewModel).Asset.CustomerID);
customer.Children.Remove(asset);
}
}
else
{
asset.Parent.Children.Remove(asset);
}
//add movement to log
LogMovement(ActivityType.Transfer, assetid, (asset as TVAssetViewModel).Asset.CustomerID, newcustomerid);
//update child assets to correct customerid and status
UpdateChildAsset(assetid, newcustomerid, 1);
UpdateCustomerID(asset.Children, newcustomerid);
//update open windows to reflect the changes made to data
UpdateRelatedWindow(assetid, newcustomerid, 1, owner);
(asset as TVAssetViewModel).Asset.ParentAssetID = newparentassetid;
(asset as TVAssetViewModel).Asset.CustomerID = newcustomerid;
(asset as TVAssetViewModel).Asset.StatusID = 1;
(asset as TVAssetViewModel).IsExpanded = true;
parentasset.Children.Add(asset);
parentasset.IsExpanded = true;
asset.Parent = parentasset;
}
}
}