/// <summary>
/// 触发节点预绑定事件
/// </summary>
/// <param name="e">事件参数</param>
protected virtual void OnPreNodeDataBound(TreePreNodeEventArgs e)
{
EventHandler<TreePreNodeEventArgs> handler = Events[_preNodeDataBoundHandlerKey] as EventHandler<TreePreNodeEventArgs>;
if (handler != null)
{
handler(this, e);
}
}
//private void DataBindToXml(XmlDocument xdoc)
//{
// XmlNodeList nodes = xdoc.DocumentElement.ChildNodes;
// foreach (XmlNode node in nodes)
// {
// if (node.NodeType == XmlNodeType.Element)
// {
// TreeNode treeNode = new TreeNode();
// Nodes.Add(treeNode);
// LoadXmlNode(treeNode, node);
// }
// }
//}
private void DataBindToXml(TreeNode treeNode, XmlNodeList nodes)
{
foreach (XmlNode node in nodes)
{
// Only process Xml elements (ignore comments, etc)
if (node.NodeType == XmlNodeType.Element)
{
TreePreNodeEventArgs preArgs = new TreePreNodeEventArgs(node);
OnPreNodeDataBound(preArgs);
// 事件处理函数要求取消添加本节点
if (!preArgs.Cancelled)
{
TreeNode childNode = new TreeNode();
if (treeNode == null)
{
Nodes.Add(childNode);
}
else
{
treeNode.Nodes.Add(childNode);
}
childNode.ReadXmlAttributes(node.Attributes, this);
OnNodeDataBound(new TreeNodeEventArgs(childNode, node));
DataBindToXml(childNode, node.ChildNodes);
}
}
}
}