private void AddDescriptor(TableDescriptor descriptor)
{
var viewModel = descriptor.Host == null?this.CreateInstance(this.authentication, descriptor, this.Owner) : descriptor.Host as TableTreeItemBase;
viewModel.Parent = this;
descriptor.Host = viewModel;
}
private void RemoveDescriptor(TableDescriptor descriptor)
{
foreach (var item in this.Items.ToArray())
{
if (item is TableTreeItemBase viewModel && viewModel.Descriptor == descriptor)
{
this.Items.Remove(viewModel);
}
}
}
public TableDescriptor(Authentication authentication, ITable table, DescriptorTypes descriptorTypes, object owner)
: base(authentication, table, descriptorTypes)
{
this.table = table;
this.owner = owner ?? this;
this.table.Dispatcher.VerifyAccess();
this.tableInfo = table.TableInfo;
this.tableState = table.TableState;
this.tableAttribute = TableAttribute.None;
if (this.table.DerivedTables.Any() == true)
{
this.tableAttribute |= TableAttribute.BaseTable;
}
if (this.table.TemplatedParent != null)
{
this.tableAttribute |= TableAttribute.DerivedTable;
}
if (this.table.Parent != null)
{
this.tableAttribute |= TableAttribute.HasParent;
}
this.lockInfo = table.LockInfo;
this.accessInfo = table.AccessInfo;
this.accessType = table.GetAccessType(this.authentication);
this.templateDescriptor = new TableTemplateDescriptor(authentication, table.Template, descriptorTypes, owner);
this.contentDescriptor = new TableContentDescriptor(authentication, table.Content, descriptorTypes, owner);
this.childsReadonly = new ReadOnlyObservableCollection <TableDescriptor>(this.childs);
this.table.ExtendedProperties[this.owner] = this;
if (this.descriptorTypes.HasFlag(DescriptorTypes.IsSubscriptable) == true)
{
this.table.Deleted += Table_Deleted;
this.table.LockChanged += Table_LockChanged;
this.table.AccessChanged += Table_AccessChanged;
this.table.TableInfoChanged += Table_TableInfoChanged;
this.table.TableStateChanged += Table_TableStateChanged;
this.table.DerivedTables.CollectionChanged += DerivedTables_CollectionChanged;
}
if (this.descriptorTypes.HasFlag(DescriptorTypes.IsRecursive) == true)
{
if (this.descriptorTypes.HasFlag(DescriptorTypes.IsSubscriptable) == true)
{
this.table.Childs.CollectionChanged += Childs_CollectionChanged;
}
foreach (var item in this.table.Childs)
{
var descriptor = new TableDescriptor(this.authentication, item, this.descriptorTypes, this.owner);
this.childs.Add(descriptor);
}
}
}
public TableCategoryDescriptor(Authentication authentication, ITableCategory category, DescriptorTypes descriptorTypes, object owner)
: base(authentication, category, descriptorTypes)
{
this.category = category;
this.owner = owner ?? this;
this.category.Dispatcher.VerifyAccess();
this.categoryName = category.Name;
this.categoryPath = category.Path;
this.accessInfo = category.AccessInfo;
this.lockInfo = category.LockInfo;
this.accessType = category.GetAccessType(authentication);
this.tablesReadonly = new ReadOnlyObservableCollection <TableDescriptor>(this.tables);
this.categoriesReadonly = new ReadOnlyObservableCollection <TableCategoryDescriptor>(this.categories);
if (this.descriptorTypes.HasFlag(DescriptorTypes.IsSubscriptable) == true)
{
this.category.Renamed += Category_Renamed;
this.category.Moved += Category_Moved;
this.category.Deleted += Category_Deleted;
this.category.AccessChanged += Category_AccessChanged;
this.category.LockChanged += Category_LockChanged;
}
if (this.descriptorTypes.HasFlag(DescriptorTypes.IsRecursive) == true)
{
if (this.descriptorTypes.HasFlag(DescriptorTypes.IsSubscriptable) == true)
{
this.category.Tables.CollectionChanged += Tables_CollectionChanged;
this.category.Categories.CollectionChanged += Categories_CollectionChanged;
}
foreach (var item in this.category.Categories)
{
var descriptor = new TableCategoryDescriptor(this.authentication, item, this.descriptorTypes, this.owner);
item.ExtendedProperties[this.owner] = descriptor;
this.categories.Add(descriptor);
}
foreach (var item in this.category.Tables)
{
if (item.Parent != null)
{
continue;
}
var descriptor = new TableDescriptor(this.authentication, item, this.descriptorTypes, this.owner);
item.ExtendedProperties[this.owner] = descriptor;
this.tables.Add(descriptor);
}
}
}
protected virtual TableTreeItemBase CreateInstance(Authentication authentication, TableDescriptor descriptor, object owner)
{
return(new TableTreeItemBase(authentication, descriptor, owner));
}
private void Childs_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
{
var descriptorList = new List <TableDescriptor>(e.NewItems.Count);
foreach (ITable item in e.NewItems)
{
if (item.ExtendedProperties.ContainsKey(this.owner) == true)
{
var descriptor = item.ExtendedProperties[this.owner] as TableDescriptor;
descriptorList.Add(descriptor);
}
else
{
var descriptor = new TableDescriptor(this.authentication, item, this.descriptorTypes, this.owner);
descriptorList.Add(descriptor);
}
}
this.Dispatcher.InvokeAsync(() =>
{
foreach (var item in descriptorList)
{
this.childs.Add(item);
}
});
}
break;
case NotifyCollectionChangedAction.Remove:
{
var descriptorList = new List <TableDescriptor>(e.OldItems.Count);
foreach (ITable item in e.OldItems)
{
var descriptor = item.ExtendedProperties[this.owner] as TableDescriptor;
descriptorList.Add(descriptor);
}
this.Dispatcher.InvokeAsync(() =>
{
foreach (var item in descriptorList)
{
this.childs.Remove(item);
}
});
}
break;
case NotifyCollectionChangedAction.Move:
{
}
break;
case NotifyCollectionChangedAction.Reset:
{
this.Dispatcher.InvokeAsync(() =>
{
this.childs.Clear();
});
}
break;
}
}