Question

我使用了Treeview与 ImageSet =“XPFileExplorer”我已经创建了一个循环来将一组目录填充到TreeNodes中，进入作为Treeviews节点的treenodecollection。这工作并给我一个树视图，代表目录的层次结构。但是，图标都错了。有些是计算机图标，有些是文本文件图标，有些是文件夹图标。我的问题是如何将它们全部变为文件夹图标。我看到有一种方法可以在TreeNodes上设置ImageUrl，但是我不想编写自己的图像。我更喜欢使用 ImageSet =“XPFileExplorer”提供的图像这是asp和我用来制作节点的方法。

<asp:TreeView ID="TreeViewfilelist" runat="server" 
            onload="TreeViewfilelist_Load" ImageSet="XPFileExplorer" 
        NodeIndent="15">
            <HoverNodeStyle Font-Underline="True" ForeColor="#6666AA" />
            <NodeStyle Font-Names="Tahoma" Font-Size="8pt" ForeColor="Black" 
                HorizontalPadding="2px" NodeSpacing="0px" VerticalPadding="2px" />
            <ParentNodeStyle Font-Bold="False" />
            <SelectedNodeStyle BackColor="#B5B5B5" Font-Underline="False" 
                HorizontalPadding="0px" VerticalPadding="0px" />
</asp:TreeView>

致电onload

TreeNodeCollection main = TreeViewfilelist.Nodes;
makemainNodes(main, dir);

方法：

protected void makemainNodes(TreeNodeCollection treec, System.IO.DirectoryInfo directory)
    {
        foreach (System.IO.DirectoryInfo g in directory.GetDirectories())
        {               
            TreeNode child = new TreeNode(g.Name);                
            System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(g.FullName);
            makesubNodes(child, dir);
            treec.Add(child);
        } 
    }
protected void makesubNodes(TreeNode treec, System.IO.DirectoryInfo directory)
    {
        foreach (System.IO.DirectoryInfo g in directory.GetDirectories())
        {              
            TreeNode child = new TreeNode(g.Name);
            System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(g.FullName);
            makesubNodes(child, dir);
            treec.ChildNodes.Add(child);
        } 
    }

Answer 1

我找不到任何方法可以使用内置的ImageSet =“XPFileExplorer”将所有图标更改为文件夹图标。相反，我创建了自己的folder.png图像，添加到我的项目中的Images文件夹中，当我为我使用的树创建节点时

child.ImageUrl = "~/Images/folder.png";

在上面的例子中，

protected void makemainNodes(TreeNodeCollection treec, System.IO.DirectoryInfo directory)
{
    foreach (System.IO.DirectoryInfo g in directory.GetDirectories())
    {               
        TreeNode child = new TreeNode(g.Name);                
        System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(g.FullName);
        child.ImageUrl = "~/Images/folder.png";            
        makesubNodes(child, dir);
        treec.Add(child);
    } 
}

protected void makesubNodes(TreeNode treec, System.IO.DirectoryInfo directory)
{
    foreach (System.IO.DirectoryInfo g in directory.GetDirectories())
    {              
        TreeNode child = new TreeNode(g.Name);
        System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(g.FullName);
        child.ImageUrl = "~/Images/folder.png";
        makesubNodes(child, dir);
        treec.ChildNodes.Add(child);
    } 
}

asp：使用XPFileExplorer设置图像的TreeView

1 个答案: