如標題
參考網址
https://stackoverflow.com/questions/45
/// <summary>
/// 找到預設展開的項目
/// </summary>
/// <param name="aNodes"></param>
/// <param name="txt"></param>
private void FindNodeToExpand (TreeNodeCollection axNodes , string txt)
{
if (string.IsNullOrEmpty(txt))
{
return;
}
foreach (TreeNode iNode in axNodes )
{
if (iNode.Text.Contains(txt))
{
iNode.Text = "<span class=\"primary-bg\">"+ iNode.Text + "</span>";
iNode.Expand();
ExpandParentNodes(iNode.Parent.ChildNodes);
}
FindNodeToExpand(iNode.ChildNodes , txt);
}
}
/// <summary>
/// 展開所有父節點
/// </summary>
/// <param name="tnodes"></param>
private void ExpandParentNodes(TreeNodeCollection tnodes)
{
TreeNode parentNode;
foreach (TreeNode node in tnodes)
{
parentNode = node;
if (parentNode.Parent != null)
{
parentNode.Parent.Expand();
if (parentNode.Parent.Parent != null)//判斷父節點的父節點是否為空,如果已經達到根節點就是null
{
ExpandParentNodes(parentNode.Parent.Parent.ChildNodes);
}
else
break;//已經達到根節點,退出
}
}
}
20503/how-do-you-get-the-root-node-or-the-first-level-node-of-the-selected-node-in-a-t
以上文章僅用紀錄資料使用.....