visual-studio 在树视图控件中隐藏节点
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hide node in treeview control
提问by user175084
I have a tree view created in my HTML Page
我在 HTML 页面中创建了一个树视图
<asp:TreeView ID="TreeView1" runat="server"
onselectednodechanged="TreeView1_SelectedNodeChanged"
PopulateNodesFromClient="False" onunload="TreeView1_Unload">
<Nodes>
<asp:TreeNode Text="Reports" Value="Report">
<asp:TreeNode Text="Status" Value="Service">
</asp:TreeNode>
<asp:TreeNode Text="Status" Value="Status">
</asp:TreeNode>
<asp:TreeNode Text="Stats"
Value="Stats"></asp:TreeNode>
</asp:TreeNode>
</Nodes>
</asp:TreeView>
now i want to hide the Stats node in the page load function in my code behind....
现在我想在后面的代码中隐藏页面加载功能中的 Stats 节点....
any suggestions.. thanks
任何建议..谢谢
采纳答案by Win
I use Telerik RadTreeView; TreeView doesn't have DataBound event and Visible property for each node. Here is the code to remove the child node for TreeView.
我使用 Telerik RadTreeView；TreeView 没有每个节点的 DataBound 事件和 Visible 属性。这是删除 TreeView 子节点的代码。
protected void Page_Load(object sender, EventArgs e)
{
RemoveNodeRecurrently(TreeView1.Nodes, "Status");
}
private void RemoveNodeRecurrently(TreeNodeCollection childNodeCollection, string text)
{
foreach (TreeNode childNode in childNodeCollection)
{
if (childNode.ChildNodes.Count > 0)
RemoveNodeRecurrently(childNode.ChildNodes, text);
if (childNode.Text == text)
{
TreeNode parentNode = childNode.Parent;
parentNode.ChildNodes.Remove(childNode);
break;
}
}
}
回答by Syed Ali Taqi
You can try this, it works for Leaf Nodes only.
你可以试试这个，它只适用于叶节点。
TreeView1.Nodes[0].Text = "";
TreeView1.Nodes[0].Text = "";
TreeView1.Nodes[0].ShowCheckBox = false;
TreeView1.Nodes[0].ShowCheckBox = false;
P.S: You will need a recursive function to access each node.
PS：您将需要一个递归函数来访问每个节点。
回答by Mohammad Jahangeer Ansari
protected void Page_Load(object sender, EventArgs e)`{
TreeView1.Nodes.RemoveAt(2); }`
TreeView1.Nodes.RemoveAt(2); }`
回答by SUMIT
![This is how i have used.][1]
![这是我使用的方式。][1]
protected void Page_Load(object sender, EventArgs e)
{
if (Session["type"] == null)
{
RemoveNodeRecurrently(rptTree.Nodes, "Create Users");
}
if (Session["user"] != null)
{
}
else
{
Response.Redirect(ConfigurationManager.AppSettings.Get("RootFolder") + "/ERP - Login.aspx");
}
}
private void RemoveNodeRecurrently(TreeNodeCollection childNodeCollection, string text)
{
foreach (TreeNode childNode in childNodeCollection)
{
if (childNode.ChildNodes.Count > 0)
RemoveNodeRecurrently(childNode.ChildNodes, text);
if (childNode.Text == text)
{
TreeNode parentNode = childNode.Parent;
parentNode.ChildNodes.Remove(childNode);
break;
}
}
}
回答by Tools
Set the node text to "" and it won't be rendered.
将节点文本设置为“”，它不会被渲染。
