Small explorer, IO Operations, common operations for reading and writing files and directories

Solution:

Small summary:

With IO stream, the File,directoryinfo method binds to the TreeView control and Deletes, reads, and can master the IO stream

Main Page:

1    Private voidForm1_Load (Objectsender, EventArgs e)2         {3             4             //Create a root node5TreeNode root =NewTreeNode ();6Root. Text ="d:\\";//the folder name is displayed (individual name)7Root. Tag ="d:\\";//absolute path to save folder8 9 tvExplore.Nodes.Add (root);Ten  One  A             //Load all sub-folders under D disk -  -             //01. Load all the files under the D disk on the left TreeView control the             //02. Display only folders in the TreeView -             //03. The file of the selected node is displayed in the right ListView -  -         } +  -         Private stringpath; +         PrivateDirectoryInfo info; A  at          Public voidloaddirectory (TreeNode selectnode) -         { - selectNode.Nodes.Clear (); -             //02. Load all folders under this path (SelectNode.Tag.ToString ()) -Path =selectNode.Tag.ToString (); -info =NewDirectoryInfo (path); indirectoryinfo[] Directorys =info. GetDirectories (); -             foreach(DirectoryInfo DirectoryInfoinchDirectorys) to             { +                 //creates a node on the TreeView for each traversal of a DirectoryInfo object -TreeNode tn =NewTreeNode (); theTn. Text =Directoryinfo.name; *Tn. Tag =Directoryinfo.fullname; $ Panax Notoginseng SelectNode.Nodes.Add (TN); -             } the         } + 

 A         //Load All Files the          Public voidloadallfiles () +         { - lvFiles.Items.Clear (); $             //03. Load all files under the currently selected node $fileinfo[] Files =info. GetFiles (); -             foreach(FileInfo fileinchfiles) -             { the                 //each traversal to a file object, forming a record on the ListView -ListViewItem Lvitem =NewListViewItem (file. Name);WuyiLvitem. SubItems.Add (file. length*1.0/1024x768/1024x768+"MB");//File Size the                 //file type (extension) - Lvitem. SubItems.Add (file. Extension); Wu                 //file path - Lvitem. SubItems.Add (file. FullName); About LvFiles.Items.Add (lvitem); $             } -         } -  -         Private voidTvexplore_afterselect (Objectsender, TreeViewEventArgs e) A         { +             //01. Get the selected Node object theTreeNode Selectnode =Tvexplore.selectednode; -             //02. Load the current node's folder $ loaddirectory (selectnode); the loadallfiles (); the         } the  the         Private voidLvfiles_doubleclick (Objectsender, EventArgs e) -         { in             //gets the path column for the selected file the             stringPath = lvfiles.selecteditems[0]. subitems[3]. Text; the Process.Start (path); About         } the  the         Private voidButton1_Click (Objectsender, EventArgs e) the         { +              -         } the Bayi         Private voidTisicopy_click (Objectsender, EventArgs e) the         { the             //gets the node in the TV selected by the user -TreeNode selectnode=Tvexplore.selectednode; -             stringPath=selectNode.Tag.ToString (); theDialogResult dr=Folderbrowserdialog1.showdialog (); the             if(dr==DialogResult.OK) the             { the copydirectory (path,folderbrowserdialog1.selectedpath); -             } the         }
 the         //Click the tree structure to copy the folder the         /// <summary>94         ///  the         /// </summary> the         /// <param name= "Srcdir" >Source Path</param> the         /// <param name= "Desdir" >Target Path</param>98         Private voidCopyDirectory (stringSrcdir,stringDesdir) About         { -             //d:\\ Beauty Chart101             stringFolderName = Srcdir. Substring (Srcdir. LastIndexOf ("\\") +1);102 103             stringDesfolderdir = Desdir +"\\"+FolderName;104  the             if(Desdir. LastIndexOf ("\\") = = (Desdir. Length-1))106             {107Desfolderdir = Desdir +FolderName;108             }109             string[] filenames =directory.getfilesystementries (srcdir); the 111             foreach(stringFileinchFilenames//traverse all files and directories the             {113                 if(directory.exists (file))//as directory processing, if this directory is present, recursively copy the files under the directory the                 { the  the                     stringCurrentdir = Desfolderdir +"\\"+ file. Substring (file. LastIndexOf ("\\") +1);117                     if(!directory.exists (currentdir))118                     {119 directory.createdirectory (currentdir); -                     }121 122 copydirectory (file, desfolderdir);123                 }124  the                 Else //Otherwise, the direct copy file126                 {127                     stringSrcfilename = file. Substring (file. LastIndexOf ("\\") +1); - 129Srcfilename = Desfolderdir +"\\"+Srcfilename; the 131  the                     if(!directory.exists (desfolderdir))133                     {134 directory.createdirectory (desfolderdir);135                     }136 137 138 file.copy (File, srcfilename);139                 } $}//foreach141}

To be adjourned ......... ..................

Small explorer, IO Operations, common operations for reading and writing files and directories