Treeview notes (temp)

 

Using system;

Using system. Collections. Generic;

Using system. componentmodel;

Using system. Data;

Using system. drawing;

Using system. LINQ;

Using system. text;

Using system. Windows. forms;

Using system. IO;

 

Namespace Treeview

{

Public partial class form1: Form

{

Bool flag = false;

Public form1 ()

{

Initializecomponent ();

This. treeview1.nodemouseclick + =

New treenodemouseclickeventhandler (this. treeview#nodemouseclick );

Initiconview ();

Getdriver ();

}

Private void initiconview ()

{

Icon ico1 = new icon (".. // ICO // app. ICO ");

Icon ico2 = new icon (".. // ICO // drive. ICO ");

Icon IO3 = new icon (".. // ICO // floppy disk. ICO ");

Icon ico4 = new icon (".. // ICO // cddrive. ICO ");

Icon ico5 = new icon (".. // ICO // clsdfold. ICO ");

Icon ico6 = new icon (".. // ICO // openfold. ICO ");

Imagelist1.images. Add (ico1 );

Imagelist1.images. Add (ico2 );

Imagelist1.images. Add (IO3 );

Imagelist1.images. Add (ico4 );

Imagelist1.images. Add (ico5 );

Imagelist1.images. Add (ico6 );

}

Private void getdriver ()

{

Treeview1.nodes. Clear ();

Treeview1.imagelist = imagelist1;

Treenode TD = new treenode ("My Computer", 0, 0 );

TD. Tag = "_ my_computer ";

Int [] driver_type = new int [directory. getlogicaldrives (). Length];

Treeview1.nodes. Add (TD );

String [] astrdrives = directory. getlogicaldrives ();

Driveinfo [] alldrives = driveinfo. getdrives ();

Int iimageindex = 1;

Int iselectedindex = 1;

Try

{

Int CNT = 0;

Foreach (driveinfo D in alldrives)

{

Driver_type [CNT ++] = (INT) D. drivetype;

}

}

Catch (system. Exception ex)

{

MessageBox. Show (ex. Message );

}

For (INT I = 0; I <astrdrives. length; I ++)

{

Switch (driver_type [I])

{

Case 0: // partitioned Disk

Case 1: // drive_no_root_dir the root directory does not exist. 1

Case 2: // drive_removable Mobile Disk the disk can be removed from the drive. 2

Case 3: iimageindex = 1; iselectedindex = 1; break;

Case 4: // drive_remote the drive is a remote (network) Drive. 4

Case 5: iimageindex = 3; iselectedindex = 3; break; // Optical Drive

Case 6: // drive_ramdisk the drive is a RAM disk.

Default: break;

}

/* If (STR = "://")

{Iimageindex = 2; iselectedindex = 2 ;}

Else if (STR = "G ://")

{Iimageindex = 3; iselectedindex = 3 ;}

Else

{Iimageindex = 1; iselectedindex = 1 ;}*/

Treenode tndrive = new treenode (astrdrives [I], iimageindex, iselectedindex );

Tndrive. Tag = astrdrives [I];

Treeview1.nodes [0]. nodes. Add (tndrive );

Directoryinfo dir = new directoryinfo (astrdrives [I]);

If (dir. exists)

Getdirectories (dir. getdirectories (), tndrive );

If (astrdrives [I] = "C ://")

{Treeview1.selectednode = tndrive ;}

Treeview1.endupdate ();

}

 

}

Private void getdirectories (directoryinfo [] subdirs,

Treenode nodetoaddto)

{

Treenode anode;

Directoryinfo [] subsubdirs = NULL;

Foreach (directoryinfo subdir in subdirs)

{

If (subdir. Attributes & fileattributes. Hidden )! = 0)

{

Continue;

}

Anode = new treenode (subdir. Name, 0, 0 );

Anode. Tag = subdir. fullname;

Try

{

Subsubdirs = subdir. getdirectories ();

}

Catch {};

If (subsubdirs! = NULL & subsubdirs. length! = 0)

{

Anode. nodes. Clear ();

Getseconddirectories (subsubdirs, anode );

}

Nodetoaddto. nodes. Add (Anode );

}

}

Private void getseconddirectories (directoryinfo [] subdirs,

Treenode nodetoaddto)

{

Treenode anode;

Directoryinfo [] subsubdirs = NULL;

Foreach (directoryinfo subdir in subdirs)

{

If (subdir. Attributes & fileattributes. Hidden )! = 0)

{

Continue;

}

Anode = new treenode (subdir. Name, 0, 0 );

Anode. Tag = subdir. fullname;

Try

{

Subsubdirs = subdir. getdirectories ();

}

Catch {};

Nodetoaddto. nodes. Add (Anode );

}

}

Void treeview1_nodemouseclick (Object sender,

Treenodemouseclickeventargs E)

{

Treenode Tn = E. node;

// Directoryinfo dir = NULL;

// Directoryinfo son = NULL;

If (TN. Tag. tostring ()! = Treeview1.nodes [0]. Tag. tostring ())

{

Try

{

Directoryinfo dir = new directoryinfo (TN. Tag. tostring ());

Tn. nodes. Clear ();

Getdirectories (dir. getdirectories (), TN );

}

// Try

//{

// Foreach (treenode son in TN. nodes)

//{

 

//}

//}

Catch (system. Exception ex)

{

// MessageBox. Show (ex. Message );

}

// MessageBox. Show ("1 ");

}

}

}

}