plantage du prog

Question

lu all,
j ai code un explorateur win  en csharp eilmarche super sur le dd ou sur tt disque logique mais kan le contenue est trop gros a afficher ds une listview il plante mechament comment faire je ne sais po faut t il alloue de la memoire ou revoir ma facon de lister le contenu merci de m aider.

using System;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

class FileListView: ListView
{
     string strDirectory;

     public FileListView()
     {
          View = View.Details;
  Image image;
  Image image2;
  
   //image = Image.FromFile("C:\DOC.BMP");
   //image2 = Image.FromFile("C:\EXE.BMP");
               // Get images for file icons.

          ImageList imglst = new ImageList();
          //imglst.Images.Add(image);
          //imglst.Images.Add(image2);

          SmallImageList = imglst;
          LargeImageList = imglst;

               // Create columns.

          Columns.Add("Name",      100, HorizontalAlignment.Left);
          Columns.Add("Size",      100, HorizontalAlignment.Right);
          Columns.Add("Modified",  100, HorizontalAlignment.Left);
     }
     public void ShowFiles(string strDirectory)
     {
               // Save directory name as field.
               
          this.strDirectory = strDirectory;

          Items.Clear();
          DirectoryInfo dirinfo = new DirectoryInfo(strDirectory);
          FileInfo[] afileinfo;

          try
          {
               afileinfo = dirinfo.GetFiles();
          }
          catch
          {
               return;
          }

          foreach (FileInfo fi in afileinfo)
          {
                    // Create ListViewItem.

               ListViewItem lvi = new ListViewItem(fi.Name);

                    // Assign ImageIndex based on filename extension.

               if (Path.GetExtension(fi.Name).ToUpper() == ".EXE")
                    lvi.ImageIndex = 1;
               else
                    lvi.ImageIndex = 0;

                   

               lvi.SubItems.Add(fi.Length.ToString("N0"));
               lvi.SubItems.Add(fi.LastWriteTime.ToString());
                   
               Items.Add(lvi);
          }
     }
     protected override void OnItemActivate(EventArgs ea)
     {
          base.OnItemActivate(ea);

          foreach (ListViewItem lvi in SelectedItems)
          {
               try
               {
                    Process.Start(Path.Combine(strDirectory, lvi.Text));
               }
               catch
               {
                    continue;
               }
          }
     }
}



using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

class DirectoryTreeView: TreeView
{
     public DirectoryTreeView()
     {
               

         Width *= 2;
 Image image;
 Image image2;
 Image image3;
 image = Image.FromFile("C:\35FLOPPY.BMP");
 image2 = Image.FromFile("C:\CLSDFOLD.BMP");
 image3 = Image.FromFile("C:\OPENFOLD.BMP");

          ImageList = new ImageList();
          ImageList.Images.Add(image);
          ImageList.Images.Add(image2);
          ImageList.Images.Add(image3);

           

          RefreshTree();
     }
     public void RefreshTree()
     {
               

          BeginUpdate();
          Nodes.Clear();

              

          string[] astrDrives = Directory.GetLogicalDrives();

          foreach (string str in astrDrives)
          {
 TreeNode tnDrive = new TreeNode(str, 0, 0);
 Nodes.Add(tnDrive);
 AddDirectories(tnDrive);

  if (str == "D:\")
   SelectedNode = tnDrive;
  else
 Nodes.Clear();
          }
          EndUpdate();
     }
     void AddDirectories(TreeNode tn)
     {
          tn.Nodes.Clear();

          string          strPath = tn.FullPath;
          DirectoryInfo   dirinfo = new DirectoryInfo(strPath);
          DirectoryInfo[] adirinfo;

          try
          {
               adirinfo = dirinfo.GetDirectories();
          }
          catch
          {
               return;
          }

          foreach (DirectoryInfo di in adirinfo)
          {
               TreeNode tnDir = new TreeNode(di.Name, 1, 2);
               tn.Nodes.Add(tnDir);

               
          }
     }
     protected override void OnBeforeExpand(TreeViewCancelEventArgs tvcea)
     {
          base.OnBeforeExpand(tvcea);

          BeginUpdate();

          foreach (TreeNode tn in tvcea.Node.Nodes)
               AddDirectories(tn);

          EndUpdate();
     }
}

voila le plus important du code

TheSaib · Answer

Comme çà c difficile de te dire ...
T sur qu'il plante et qu'il ne met pas du temps a rafraichir simplement ?

Tu peux utiliser des threads pour mettre en paralelles l'execution des taches.

Sinon regarde si tu n'a pas une propriété sorted qui a la valeur TRUE , ce qui ralentie enormement les composants.

 ::|The S@ib|::
   MVP C#.NET

Plantage du prog

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