在ASP.NET中,TreeView的使用很普遍,把它利用上來(lái)
首先加入TreeView控件
asp:TreeView ID="driverInfoView" runat="server" ImageSet="XPFileExplorer" OnTreeNodePopulate="driverInfoView_TreeNodePopulate">
/asp:TreeView>
當(dāng)頁(yè)面加載的時(shí)候,寫下以下代碼
protected void Page_Load(object sender, EventArgs e)
{
foreach (DriveInfo driverInfo in DriveInfo.GetDrives())
{
TreeNode newNode = new TreeNode();
newNode.Expanded = false;
newNode.PopulateOnDemand = true;
newNode.Value = driverInfo.Name;
if (driverInfo.IsReady)
{
newNode.Text = driverInfo.Name + "(" + driverInfo.VolumeLabel + ")";
}
else
{
newNode.Text = driverInfo.Name + "(還沒(méi)準(zhǔn)備好)";
}
this.driverInfoView.Nodes.Add(newNode);
}
}
設(shè)置TreeView節(jié)點(diǎn)的事件
protected void driverInfoView_TreeNodePopulate(object sender, TreeNodeEventArgs e)
{
DirectoryInfo dictInfo = new DirectoryInfo(e.Node.Value);
foreach (DirectoryInfo directory in dictInfo.GetDirectories())
{
TreeNode newNode = new TreeNode();
newNode.Expanded = false;
newNode.PopulateOnDemand = true;
newNode.Text = directory.Name;
newNode.Value = directory.FullName;
e.Node.ChildNodes.Add(newNode);
}
foreach (FileInfo fileInfo in dictInfo.GetFiles())
{
TreeNode newNode = new TreeNode();
newNode.Text = fileInfo.Name;
newNode.Value = fileInfo.FullName;
e.Node.ChildNodes.Add(newNode);
}
}
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