private bool RemoveResource(RadTreeNode node, int?insertAfter)
{
TreeDataNodeType dataNodeType = (TreeDataNodeType)Enum.Parse(typeof(TreeDataNodeType), node.Attributes["DataNodeType"], true);
//If the node is a resource add it to the list and remove it from the tree
//otherwise process its children
if (dataNodeType != TreeDataNodeType.OrgUnit)
{
int orgUnitId = Convert.ToInt32(node.ParentNode.Attributes["OrgUnitId"]);
int resourceId = Convert.ToInt32(node.Attributes["ResourceId"]);
EF.Resource resource = _resources.FirstOrDefault(r => r.ResourceId == resourceId);
if (resource != null)
{
EF.OrgUnitResource orgResource = resource.OrgUnitResources.FirstOrDefault(or => or.OrgUnitId == orgUnitId);
if (orgResource != null)
{
EF.DataContext.Current.DeleteObject(orgResource);
}
}
node.Remove();
return(true);
}
return(false);
}
private void UpdateOrgUnits(int?ParentOrgUnitId, RadTreeNodeCollection Nodes, bool delete)
{
//Ideally OrgUnit would have an Entity Reference to itself which would mean a sub tree could be deleted
//by simply deleting it's the root node and we would not need to SaveChanges for every new node just to get
//the OrgUnitId to pass down the tree. However, this jhas not been done as the RadTree requires a ParentId and Id
//to do its binding. EF4 will fix this by allowing us to have both an FK Id AND an Entity Reference
foreach (RadTreeNode node in Nodes)
{
TreeDataNodeType dataNodeType = (TreeDataNodeType)Enum.Parse(typeof(TreeDataNodeType), node.Attributes["DataNodeType"], true);
//If Node is an OrgUnit
if (dataNodeType == TreeDataNodeType.OrgUnit)
{
int orgUnitId = 0;
EF.OrgUnit orgUnit = null;
//New nodes do not have a OrgUnitId
if (!string.IsNullOrEmpty(node.Attributes["OrgUnitId"]))
{
orgUnitId = int.Parse(node.Attributes["OrgUnitId"]);
orgUnit = _orgUnits.FirstOrDefault(ou => ou.OrgUnitId == orgUnitId);
}
//If the node has been deleted or one of its ancestors, delete it if it is NOT new
//then delete its children
if (node.Visible == false || delete)
{
if (orgUnit != null)
{
foreach (EF.OrgUnitResource our in orgUnit.OrgUnitResources)
{
EF.DataContext.Current.DeleteObject(our);
}
EF.DataContext.Current.DeleteObject(orgUnit);
EF.DataContext.Current.SaveChanges();
}
}
//If not deleting, then add or update
else
{
//Create the OrgUnit if it's new
if (orgUnit == null)
{
orgUnit = new EF.OrgUnit();
EF.DataContext.Current.AddToOrgUnits(orgUnit);
_orgUnits.Add(orgUnit);
}
//Update changed properties
if (orgUnit.ParentOrgUnitId != ParentOrgUnitId)
{
orgUnit.ParentOrgUnitId = ParentOrgUnitId;
}
if (orgUnit.Name != node.Text)
{
orgUnit.Name = node.Text;
}
EF.DataContext.Current.SaveChanges();
UpdateOrgUnits(orgUnit.OrgUnitId, node.Nodes, false);
}
}
else
{
}
}
}