public static void UpdateNodes(TreeGridView tree, TreeGridNodeCollection collection, IList <IListItem> contents)
{
// Add or overwrite existing items
for (int i = 0; i < contents.Count; i++)
{
if (i < collection.Count)
{
// Overwrite
//if (!contents[i].IsLiteral)
((TreeGridNode)collection[i]).Content = contents[i];
}
else
{
// Add
//if (!contents[i].IsLiteral)
{
TreeGridNode tn = new TreeGridNode(tree, contents[i]);
tn.UserRow = false;
tn.Update();
collection.Add(tn);
}
}
}
// Delete other nodes
while (collection.Count > contents.Count)
{
collection.RemoveAt(collection.Count - 1);
}
//tree.Update();
// tree.UpdateSelection();
// tree.FullUpdate();
}
public void OnExpanding()
{
try
{
if (!populated)
{
if (this._owner == null)
{
this._owner = this.Nodes;
}
foreach (ListItem item in Content.SubItems)
{
TreeGridNode tn = new TreeGridNode(this._grid, item);
tn._owner = Nodes;
tn._parent = this;
tn.InExpanding = true;
tn.UserRow = false;
item.Changed += tn.OnContentChanged;
tn.Update();
Nodes.Add(tn);
}
populated = true;
//this.IsExpandedOnce = true;
// this.Tree.UpdateSelection();
// this.Tree.FullUpdate();
}
}
catch (System.Exception e)
{
}
}
private static void internalUpdateNodes(object prm)
{
object[] prms = prm as object[];
TreeGridView tree = prms[0] as TreeGridView;
TreeGridNodeCollection collection = prms[1] as TreeGridNodeCollection;
IList <ListItem> contents = prms[2] as IList <ListItem>;
for (int i = 0; i < contents.Count; i++)
{
try
{
if (i < collection.Count)
{
// Overwrite
//if (!contents[i].IsLiteral)
((TreeGridNode)collection[i]).Content = contents[i];
}
else
{
// Add
//if (!contents[i].IsLiteral)
{
TreeGridNode tn = new TreeGridNode(tree, contents[i]);
tn.UserRow = false;
tn.Update();
collection.Add(tn);
}
}
}
catch
{
}
}
// Delete other nodes
while (collection.Count > contents.Count)
{
collection.RemoveAt(collection.Count - 1);
}
}