private void UpdateCheckmarks(TreeNodeCollection items)
{
TreeView treeView = Control as TreeView;
if ((treeView != null) && (items != null))
{
foreach (TreeNode item in items)
{
if (IsCheckbox(treeView, item))
{
string name = treeView.UniqueID + "n" + _checkboxIndex.ToString() + "CheckBox";
bool bIsNowChecked = (Page.Request.Form[name] != null);
if (item.Checked != bIsNowChecked)
{
item.Checked = bIsNowChecked;
Extender.RaiseAdaptedEvent("TreeNodeCheckChanged", new TreeNodeEventArgs(item));
}
_checkboxIndex++;
}
if (HasChildren(item))
{
UpdateCheckmarks(item.ChildNodes);
}
}
}
}
