/// <summary>
/// 生成指定结点的至其二级子结点
/// </summary>
/// <param name="item">指定结点</param>
public static void CreatSubTVItemFromTVItem(MyTreeViewItem item)
{
if (item.Items.Count == 0)
{
_CreatSubTVItemFromTVItem(item);
}
foreach (var i in item.Items)
{
var ii = i as MyTreeViewItem;
if (ii.Items.Count == 0)
{
_CreatSubTVItemFromTVItem(ii);
}
}
}
/// <summary>
/// 返回treeview的根结点
/// </summary>
/// <returns></returns>
public static MyTreeViewItem GetRootTVItem()
{
string[] disks = Directory.GetLogicalDrives();
DriveInfo[] disksInfo = DriveInfo.GetDrives();
int j = 0;
MyTreeViewItem root = new MyTreeViewItem("此电脑", MyIcons.disk);
root.Tag = "";
foreach (string i in disks)
{
MyTreeViewItem tvic = new MyTreeViewItem(
disksInfo[j++].VolumeLabel + " (" + i.Substring(0, 2) + ")", MyIcons.disk);
tvic.Tag = i;
root.Items.Add(tvic);
}
return(root);
}
/// <summary>
/// 返回代表指定路径的treeviewItem，不存在时自动为该路径创建结点
/// </summary>
/// <param name="tv"></param>
/// <param name="path">指定的路径</param>
/// <param name="changeSelected">是否设置为被选中项，默认false</param>
/// <returns>对应结点</returns>
public static MyTreeViewItem GetTVItemFromPath(TreeView tv, string path, bool changeSelected = false)
{
tv.BeginInit();
MyTreeViewItem aimItem = tv.Items[0] as MyTreeViewItem; //获得root item
if (path != "") //不是代表“此电脑”的路径
{
string disk = path.Substring(0, 3); //获取磁盘
//使aimItem为某磁盘根目录
foreach (var i in aimItem.Items)
{
if (((MyTreeViewItem)i).Tag.ToString() == disk)
{
aimItem = i as MyTreeViewItem;
break;
}
}
//获取磁盘子路径
path = path.Substring(3);
string[] dirs = path.Split('\\');
//aimItem指向目标目录
for (int j = 0; j < dirs.Length; j++)
{
if (aimItem.Items.IsEmpty)//该目录没有子目录时，创建子目录
{
CreatSubTVItemFromTVItem(aimItem);
}
foreach (var i in aimItem.Items)
{
if (((MyTreeViewItem)i).HeaderText == dirs[j])
{
aimItem = i as MyTreeViewItem;
break;
}
}
}
}
if (changeSelected == true)
{
(tv.SelectedItem as MyTreeViewItem).IsSelected = false;
aimItem.IsSelected = true;
}
tv.EndInit();
return(aimItem);
}
/// <summary>
/// 生成指定结点的子结点
/// </summary>
/// <param name="item">指定结点</param>
private static void _CreatSubTVItemFromTVItem(MyTreeViewItem item)
{
try {
string newpath = item.Tag.ToString();
string[] dirs = Directory.GetDirectories(newpath);//获取该目录的内容
if (newpath.Length > 3)
{
newpath += "\\";
}
;
foreach (string i in dirs)
{
if ((new FileInfo(i).Attributes & FileAttributes.Hidden) == FileAttributes.Hidden)
{
continue;
}
MyTreeViewItem tvic = new MyTreeViewItem(i.Replace(newpath, ""), MyIcons.folder);
tvic.Tag = i;
item.Items.Add(tvic);
}
}
catch (Exception) { }
}
