Discussion :

[bilb0t]

Bonjour à tous,

Ds un de mes projects, j'utilise la classe FolderTreeView

Malheureusement, celle-ci n'affiche pas les fichiers/répertoires cachés. Quelqu'un connait t'il la solution pour les afficher ? Ou un autre controle qui list les fichier caché ?

Merci.

[neguib]

Mhhmm
il me semble que de toute façon il te faudra implementer quelquechose de particulier autour des permissions pour avoir accès aux repertoires et fichiers masqués.

[bilb0t]

ok, je vais donc me rabattre sur un truc maison avec des directoryInfo...

A moins que ça existe déja qqpart... ?

[bilb0t]

ok, j'en ai fait une. C'est vraiment pas très compliqué...

[neguib]

Tu montres égoïste

[bilb0t]

Bon, c'est bien sur améliorable, et j'ai piquer la partie de code qui charge les icones (pour que ce soit plus joli), mais voilà le code:

Code :

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
 
namespace Bilb0tSpace
{
	/// <summary>
	/// Description résumée de DirTreeView.
	/// </summary>
	public class DirTreeView : TreeView
	{
		public DirTreeView():base()
		{
			this.ImageList = new ImageList();
			//Event
			this.AfterExpand+=new TreeViewEventHandler(DirTreeView_AfterExpand);
		}
		private static string TempNode = "TEMP_NODE";
 
		public void AddRootNodes()
		{
			//foreach(string drive in Directory.GetLogicalDrives())
			{
				DirectoryInfo di =  new DirectoryInfo(/*drive*/"C:/");
				if(di.Exists)
				{
					TreeNode tn = new TreeNode(/*drive*/"C:/");
 
					ImageList.Images.Add(ExtractIcons.GetIcon(di.FullName,false,ImageList));
					tn.ImageIndex = ImageList.Images.Count-1;
 
					ImageList.Images.Add(ExtractIcons.GetIcon(di.FullName,true,ImageList));
					tn.SelectedImageIndex = ImageList.Images.Count-1;
 
					tn.Tag = di;
					Nodes.Add(tn);
					ExpandDir(tn);
				}
			}
		}
 
		public void ExpandDir(TreeNode tnParent)
		{
			DirectoryInfo di = (DirectoryInfo)tnParent.Tag;
			if(di.Exists)
			{
				foreach(DirectoryInfo diChild in di.GetDirectories())
				{
					TreeNode tn = new TreeNode(diChild.Name);
					tn.Tag = diChild;
 
					ImageList.Images.Add(ExtractIcons.GetIcon(diChild.FullName,false,ImageList));
					tn.ImageIndex = ImageList.Images.Count-1;
 
					ImageList.Images.Add(ExtractIcons.GetIcon(diChild.FullName,true,ImageList));
					tn.SelectedImageIndex = ImageList.Images.Count-1;
 
					tnParent.Nodes.Add(tn);
					if(diChild.GetDirectories().Length > 0)
						tn.Nodes.Add(new TreeNode(TempNode));
				}
			}
		}
 
		private void DirTreeView_AfterExpand(object sender, TreeViewEventArgs e)
		{
			TreeNode tn = e.Node;
			if(tn.Nodes.Count == 1)
			{
				if(tn.Nodes[0].Text == TempNode)
				{
					tn.Nodes.Clear();
					ExpandDir(tn);
				}
			}
		}
	}
 
	#region ExtractIcons Class
 
	public class ExtractIcons
	{
		#region Structs & Enum
 
		[StructLayout(LayoutKind.Sequential)]
			private struct SHFILEINFO
		{
			public SHFILEINFO(bool b)
			{
				hIcon=IntPtr.Zero;iIcon=0;dwAttributes=0;szDisplayName="";szTypeName="";
			}
			public IntPtr hIcon;
			public int iIcon;
			public uint dwAttributes;
			[MarshalAs(UnmanagedType.LPStr, SizeConst=260)]
			public string szDisplayName;
			[MarshalAs(UnmanagedType.LPStr, SizeConst=80)]
			public string szTypeName;
		};
 
		private enum SHGFI
		{
			SHGFI_ICON =             0x000000100,     // get icon
			SHGFI_DISPLAYNAME =      0x000000200,     // get display name
			SHGFI_TYPENAME =         0x000000400,     // get type name
			SHGFI_ATTRIBUTES =       0x000000800,     // get attributes
			SHGFI_ICONLOCATION =     0x000001000,     // get icon location
			SHGFI_EXETYPE =          0x000002000,     // return exe type
			SHGFI_SYSICONINDEX =     0x000004000,     // get system icon index
			SHGFI_LINKOVERLAY =      0x000008000,     // put a link overlay on icon
			SHGFI_SELECTED =         0x000010000,     // show icon in selected state
			SHGFI_ATTR_SPECIFIED =   0x000020000,     // get only specified attributes
			SHGFI_LARGEICON =        0x000000000,     // get large icon
			SHGFI_SMALLICON =        0x000000001,     // get small icon
			SHGFI_OPENICON =         0x000000002,     // get open icon
			SHGFI_SHELLICONSIZE =    0x000000004,     // get shell size icon
			SHGFI_PIDL =             0x000000008,     // pszPath is a pidl
			SHGFI_USEFILEATTRIBUTES = 0x000000010     // use passed dwFileAttribute
		}
 
		#endregion
 
		#region Get Folder Icons
 
		[DllImport("Shell32.dll")]
		private static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, 
			out SHFILEINFO psfi, uint cbfileInfo, SHGFI uFlags );
 
		public static Icon GetIcon(string strPath, bool selected, ImageList imageList)
		{
			SHFILEINFO info = new SHFILEINFO(true);
			int cbFileInfo = Marshal.SizeOf(info);
			SHGFI flags;
			if (!selected)
				flags = SHGFI.SHGFI_ICON|SHGFI.SHGFI_SMALLICON;
			else
				flags = SHGFI.SHGFI_ICON|SHGFI.SHGFI_SMALLICON|SHGFI.SHGFI_OPENICON;
 
			SHGetFileInfo(strPath, 256, out info,(uint)cbFileInfo, flags);
			return Icon.FromHandle(info.hIcon);
		}
 
		#endregion
 
		#region Get Desktop Icon
 
		// Retreive the desktop icon from Shell32.dll - it always appears at index 34 in all shell32 versions.
		// This is probably NOT the best way to retreive this icon, but it works - if you have a better way
		// by all means let me know..
 
		//		[DllImport("Shell32.dll", CharSet=CharSet.Auto)]
		//		public static extern IntPtr ExtractIcon(int hInst, string lpszExeFileName, int nIconIndex);
		//
		//		public static Icon GetDesktopIcon()
		//		{
		//			IntPtr i = ExtractIcon(0, Environment.SystemDirectory + "\\shell32.dll", 34);
		//			return Icon.FromHandle(i);
		//		}
 
		// Updated this method in v1.11 so that the icon returned is a small icon, not a large icon as
		// returned by the old method above
 
		[DllImport("Shell32.dll", CharSet=CharSet.Auto)]
		public static extern uint ExtractIconEx(
			string lpszFile, int nIconIndex, IntPtr[] phiconLarge, IntPtr[] phiconSmall, uint nIcons );
 
		public static Icon GetDesktopIcon()
		{
			IntPtr[] handlesIconLarge = new IntPtr[1];
			IntPtr[] handlesIconSmall = new IntPtr[1];
			uint i = ExtractIconEx(Environment.SystemDirectory + "\\shell32.dll", 34, 
				handlesIconLarge, handlesIconSmall, 1);
 
			return Icon.FromHandle(handlesIconSmall[0]);
		}
 
		#endregion
 
	}
 
	#endregion
}