public void Update()
{
this.context.Clear();
if (!this.treeView.ListSource.IsDataBound)
{
return;
}
//if (this.treeView.IsValidParentMember)
//{
// TreeNodeDescriptor descriptor = new TreeNodeDescriptor();
// descriptor.Descriptor = this.treeView.ListSource.BoundProperties[this.treeView.ParentBoundIndex];
// descriptor.Index = this.treeView.ParentBoundIndex;
// descriptor.Descending = false;
// this.context.Add(descriptor);
//}
for (int i = 0; i < this.treeView.SortDescriptors.Count; i++)
{
SortDescriptor sd = this.treeView.SortDescriptors[i];
PropertyDescriptor pd = this.treeView.ListSource.BoundProperties.Find(sd.PropertyName, true);
if (pd != null)
{
TreeNodeDescriptor descriptor = new TreeNodeDescriptor();
descriptor.Descriptor = pd;
descriptor.Index = this.treeView.ListSource.BoundProperties.IndexOf(pd);
descriptor.Descending = (sd.Direction == ListSortDirection.Descending);
this.context.Add(descriptor);
}
}
}
private bool ResolveDescriptors(int level, object dataBoundItem)
{
if (level < this.childMembers.Length)
{
if (level < this.TreeView.BoundDescriptors.Count)
{
return(true);
}
PropertyDescriptorCollection properties = ListBindingHelper.GetListItemProperties(dataBoundItem);
PropertyDescriptor childDescriptor = properties.Find(this.childMembers[level], true);
if (childDescriptor != null)
{
TreeNodeDescriptor treeNodeDescriptor = new TreeNodeDescriptor();
treeNodeDescriptor.ChildDescriptor = childDescriptor;
this.TreeView.BoundDescriptors.Add(treeNodeDescriptor);
return(true);
}
return(false);
}
return(false);
}
private void InitilizeRelationBinding()
{
ClearRelationBinding();
for (int i = 0; i < this.TreeView.RelationBindings.Count; i++)
{
RelationBinding relation = this.TreeView.RelationBindings[i];
relation.PropertyChanged += new PropertyChangedEventHandler(relation_PropertyChanged);
CurrencyManager cm = null;
if (relation.DataSource is BindingSource)
{
cm = ((BindingSource)relation.DataSource).CurrencyManager;
}
if (cm == null && relation.DataSource != null)
{
cm = this.TreeView.BindingContext[relation.DataSource, relation.DataMember] as CurrencyManager;
}
if (cm != null)
{
WireEvents(cm);
PropertyDescriptorCollection properties = null;
if (i == 0)
{
if (((ICurrencyManagerProvider)this.TreeView.ListSource).CurrencyManager != null)
{
properties = ((ICurrencyManagerProvider)this.TreeView.ListSource).CurrencyManager.GetItemProperties();
}
}
else
{
properties = this.relationBindings[i - 1].GetItemProperties();
}
PropertyDescriptor descriptor = null;
if (properties != null)
{
descriptor = properties.Find(relation.ParentMember, true);
}
if (descriptor == null)
{
return;
}
this.TreeView.BoundDescriptors[i].ParentDescriptor = descriptor;
properties = cm.GetItemProperties();
TreeNodeDescriptor relationDescriptor = new TreeNodeDescriptor();
string childPath = relation.ChildMember.Split('\\')[0];
string[] names = childPath.Split('.');
PropertyDescriptor pd = properties.Find(names[0], true);
if (pd != null)
{
if (names.Length > 1)
{
relationDescriptor.SetChildDescriptor(pd, childPath);
}
else
{
relationDescriptor.ChildDescriptor = pd;
}
}
string valuePath = relation.ValueMember.Split('\\')[0];
names = valuePath.Split('.');
pd = properties.Find(names[0], true);
if (pd != null)
{
if (names.Length > 1)
{
relationDescriptor.SetValueDescriptor(pd, valuePath);
}
else
{
relationDescriptor.ValueDescriptor = pd;
}
}
string displayPath = relation.DisplayMember.Split('\\')[0];
names = displayPath.Split('.');
pd = properties.Find(names[0], true);
if (pd != null)
{
if (names.Length > 1)
{
relationDescriptor.SetDisplaytDescriptor(pd, valuePath);
}
else
{
relationDescriptor.DisplayDescriptor = pd;
}
}
this.TreeView.BoundDescriptors.Add(relationDescriptor);
AvlTree <RadTreeNode> nodes = new AvlTree <RadTreeNode>(new ChildComparer());
this.relationIndex.Add(nodes);
this.relationBindings.Add(cm);
this.relationLevelLoaded.Add(false);
}
}
}
