<ext:ResourceManager ID="ResourceManager1" runat="server" />
<ext:Window ID="UploadWindow" IDMode="Client" runat="server" Width="550" AutoHeight="true"
Title="Upload a File">
<Items>
<ext:Panel ID="Panel1" runat="server" LabelWidth="200" ButtonAlign="Left" Padding="10" Layout="FormLayout">
<Items>
<ext:FileUploadField ID="FileUploadField1" runat="server" FieldLabel="Please browse a file to upload"
ButtonOnly="false" Width="300" />
<ext:TreePanel ID="FolderTree" runat="server" Height="200" UseArrows="true" FieldLabel="Please select a directory"
AutoScroll="true" Animate="true" EnableDD="true" ContainerScroll="true" RootVisible="false">
</ext:TreePanel>
</Items>
<Buttons>
<ext:Button ID="Button1" runat="server" Text="Upload" />
</Buttons>
</ext:Panel>
</Items>
</ext:Window>
嗨，除了鼠标点击（单击或双击）和键盘导航中的“所选节点没有突出显示”外，一切正常并且正常。
修改
填充treenode的代码隐藏是
protected void Page_Load(object sender, EventArgs e)
{
Ext.Net.TreeNode root = this.CreateNode(SiteMap.RootNode);
root.Draggable = false;
root.Expanded = true;
FolderTree.Root.Add(root);
FolderTree.ExpandAll();
}
/// <summary>
/// Creates nodes from sitemap data
/// </summary>
/// <param name="siteMapNode">Pass the root node of Web.sitemap</param>
/// <returns></returns>
private Ext.Net.TreeNode CreateNode(SiteMapNode siteMapNode)
{
Ext.Net.TreeNode treeNode = new Ext.Net.TreeNode();
treeNode.NodeID = siteMapNode.Key;
treeNode.Text = siteMapNode.Title;
treeNode.Qtip = siteMapNode.Description;
//treeNode.Href = siteMapNode.Url;
treeNode.Icon = this.GetIcon(siteMapNode["menuId"].ToString(new CultureInfo("en-Us")));
string iconCls = GetIconCls(treeNode.Icon);
//System.Windows.Forms.MessageBox.Show(iconCls);
treeNode.Listeners.Click.Handler = string.Format(new CultureInfo("en-US"), "#{{MainPanel}}.load('{0}');#{{MainPanel}}.setIconClass('{1}');#{{MainPanel}}.setTitle('{2}');", siteMapNode.Url, iconCls, siteMapNode.Title);
SiteMapNodeCollection children = siteMapNode.ChildNodes;
if (children != null && children.Count > 0)
{
foreach (SiteMapNode mapNode in siteMapNode.ChildNodes)
{
treeNode.Nodes.Add(this.CreateNode(mapNode));
}
}
return treeNode;
}
private string GetIconCls(Ext.Net.Icon icon)
{
string iconCls = this.ResourceManager1.GetIconClass(icon);
int pos = iconCls.IndexOf("{", StringComparison.OrdinalIgnoreCase);
return iconCls.Substring(1, pos - 1);
}
谢谢你和问候。
答案 0 :(得分：1)
我将您的代码用于examples.ext.net中的节点。一切都很好。你能说明你如何设置树的节点吗？你正在使用什么版本的Ext.NET？
<ext:ResourceManager ID="ResourceManager1" runat="server" />
<form id="Form1" runat="server">
<ext:Window ID="UploadWindow" IDMode="Client" runat="server" Width="550" AutoHeight="true"
Title="Upload a File">
<Items>
<ext:Panel ID="Panel1" runat="server" LabelWidth="200" ButtonAlign="Left" Padding="10" Layout="FormLayout">
<Items>
<ext:FileUploadField ID="FileUploadField1" runat="server" FieldLabel="Please browse a file to upload"
ButtonOnly="false" Width="300" />
<ext:TreePanel ID="FolderTree" runat="server" Height="200" UseArrows="true" FieldLabel="Please select a directory"
AutoScroll="true" Animate="true" EnableDD="true" ContainerScroll="true" RootVisible="false">
<Root>
<ext:TreeNode Text="Composers" Expanded="true">
<Nodes>
<ext:TreeNode Text="Beethoven" Icon="UserGray" >
<Nodes>
<ext:TreeNode Text="Concertos">
<Nodes>
<ext:TreeNode Text="No. 1 - C" Icon="Music" />
<ext:TreeNode Text="No. 2 - B-Flat Major" Icon="Music" />
<ext:TreeNode Text="No. 3 - C Minor" Icon="Music" />
<ext:TreeNode Text="No. 4 - G Major" Icon="Music" />
<ext:TreeNode Text="No. 5 - E-Flat Major" Icon="Music" />
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Quartets">
<Nodes>
<ext:TreeNode Text="Six String Quartets" Icon="Music" />
<ext:TreeNode Text="Three String Quartets" Icon="Music" />
<ext:TreeNode Text="Grosse Fugue for String Quartets" Icon="Music" />
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Sonatas">
<Nodes>
<ext:TreeNode Text="Sonata in A Minor" Icon="Music" />
<ext:TreeNode Text="sonata in F Major" Icon="Music" />
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Symphonies">
<Nodes>
<ext:TreeNode Text="No. 1 - C Major" Icon="Music" />
<ext:TreeNode Text="No. 2 - D Major" Icon="Music" />
<ext:TreeNode Text="No. 3 - E-Flat Major" Icon="Music" />
<ext:TreeNode Text="No. 4 - B-Flat Major" Icon="Music" />
<ext:TreeNode Text="No. 5 - C Minor" Icon="Music" />
<ext:TreeNode Text="No. 6 - F Major" Icon="Music" />
<ext:TreeNode Text="No. 7 - A Major" Icon="Music" />
<ext:TreeNode Text="No. 8 - F Major" Icon="Music" />
<ext:TreeNode Text="No. 9 - D Minor" Icon="Music" />
</Nodes>
</ext:TreeNode>
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Brahms" Icon="UserGray">
<Nodes>
<ext:TreeNode Text="Concertos">
<Nodes>
<ext:TreeNode Text="Violin Concerto" Icon="Music" />
<ext:TreeNode Text="Double Concerto - A Minor" Icon="Music" />
<ext:TreeNode Text="Piano Concerto No. 1 - D Minor" Icon="Music" />
<ext:TreeNode Text="Piano Concerto No. 2 - B-Flat Major" Icon="Music" />
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Quartets">
<Nodes>
<ext:TreeNode Text="Piano Quartet No. 1 - G Minor" Icon="Music" />
<ext:TreeNode Text="Piano Quartet No. 2 - A Major" Icon="Music" />
<ext:TreeNode Text="Piano Quartet No. 3 - C Minor" Icon="Music" />
<ext:TreeNode Text="Piano Quartet No. 3 - B-Flat Minor" Icon="Music" />
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Sonatas">
<Nodes>
<ext:TreeNode Text="Two Sonatas for Clarinet - F Minor" Icon="Music" />
<ext:TreeNode Text="Two Sonatas for Clarinet - E-Flat Major" Icon="Music" />
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Symphonies">
<Nodes>
<ext:TreeNode Text="No. 1 - C Minor" Icon="Music" />
<ext:TreeNode Text="No. 2 - D Minor" Icon="Music" />
<ext:TreeNode Text="No. 3 - F Major" Icon="Music" />
<ext:TreeNode Text="No. 4 - E Minor" Icon="Music" />
</Nodes>
</ext:TreeNode>
</Nodes>
</ext:TreeNode>
<ext:TreeNode Text="Mozart" Icon="UserGray">
<Nodes>
<ext:TreeNode Text="Concertos">
<Nodes>
<ext:TreeNode Text="Piano Concerto No. 12" Icon="Music" />
<ext:TreeNode Text="Piano Concerto No. 17" Icon="Music" />
<ext:TreeNode Text="Clarinet Concerto" Icon="Music" />
<ext:TreeNode Text="Violin Concerto No. 5" Icon="Music" />
<ext:TreeNode Text="Violin Concerto No. 4" Icon="Music" />
</Nodes>
</ext:TreeNode>
</Nodes>
</ext:TreeNode>
</Nodes>
</ext:TreeNode>
</Root>
</ext:TreePanel>
</Items>
<Buttons>
<ext:Button ID="Button1" runat="server" Text="Upload" />
</Buttons>
</ext:Panel>
</Items>
</ext:Window>
</form>
答案 1 :(得分：1)
什么是
treeNode.Listeners.Click.Handler = string.Format(new CultureInfo("en-US"), "#{{MainPanel}}.load('{0}');#{{MainPanel}}.setIconClass('{1}');#{{MainPanel}}.setTitle('{2}');", siteMapNode.Url, iconCls, siteMapNode.Title);
在做什么？
请删除该行，因为没有名称为＆＃34; MainPanel＆＃34;并查看它是否已解决。