C # file/folder operations

Folder where the current program is located
System. Io. Directory. getcurrentdirectory ()

Display files in a specified folder
If (this. textbox1.text. Trim () = "")
Return;
This. listbox1.items. Clear ();
String [] myfiles = system. Io. Directory. getfiles (this. textbox1.text );
This. listbox1.items. addrange (myfiles );

Show subfolders in a specified folder
If (this. textbox1.text. Trim () = "")
Return;
This. listbox1.items. Clear ();

Obtains all subfolders in a specified folder.
String [] myfolders = system. Io. Directory. getdirectories (this. textbox1.text );
This. listbox1.items. addrange (myfolders );

Displays subfolders and files in the specified folder.
If (this. textbox1.text. Trim () = "")
Return;
This. listbox1.items. Clear ();

Obtains all files and subfolders in a specified folder.
String [] myfoldersfiles = system. Io. Directory. getfilesystementries (this. textbox1.text );
This. listbox1.items. addrange (myfoldersfiles );

File Creation Time
This. datetimepicker1.text = file. getcreationtime (this. textbox1.text). tolongdatestring ();

Last modification time
This. datetimepicker2.text = file. getlastwritetime (this. textbox1.text). tolongdatestring ();

Last access time
This. datetimepicker3.text = file. getlastaccesstime (this. textbox1.text). tolongdatestring ();
Fileattributes myattributes = file. getattributes (this. textbox1.text );
String myfiletype = myattributes. tostring ();
If (myfiletype. lastindexof ("readonly ")! =-1) // whether the file is read-only
{
This. checkbox1.checked = true;
}
If (myfiletype. lastindexof ("system ")! =-1) // whether the system file is used
{
This. checkbox2.checked = true;
}
If (myfiletype. lastindexof ("hidden ")! =-1) // hide the object
{
This. checkbox3.checked = true;
}
If (myfiletype. lastindexof ("ARCHIVE ")! =-1) // whether to archive the file
{
This. checkbox4.checked = true;
}
If (myfiletype. lastindexof ("temporary ")! =-1) // whether the file is temporary
{This. checkbox5.checked = true;
}

Set file Properties
If (this. textbox1.text. Length <2)
Return;
File. setattributes (this. textbox1.text, fileattributes. Normal );
If (this. checkbox1.checked = true)
{
File. setattributes (this. textbox1.text, fileattributes. readonly );
}
Fileattributes myattributes = file. getattributes (this. textbox1.text );
If (this. checkbox2.checked = true)
{
File. setattributes (this. textbox1.text, myattributes | fileattributes. system );
}
Myattributes = file. getattributes (this. textbox1.text );
If (this. checkbox3.checked = true)
{
File. setattributes (this. textbox1.text, myattributes | fileattributes. Hidden );
}
Myattributes = file. getattributes (this. textbox1.text );
If (this. checkbox4.checked = true)
{
File. setattributes (this. textbox1.text, myattributes | fileattributes. Archive );
}
Myattributes = file. getattributes (this. textbox1.text );
If (this. checkbox5.checked = true)
{
File. setattributes (this. textbox1.text, myattributes | fileattributes. Temporary );
}
File. setcreationtime (this. textbox1.text, this. datetimepicker1.value );
File. setlastwritetime (this. textbox1.text, this. datetimepicker2.value );
File. setlastaccesstime (this. textbox1.text, this. datetimepicker3.value );
MessageBox. Show ("File Attribute setting operation successful! "," Information prompt ",*******);

Get folder Properties
If (this. textbox1.text. Length <2)
Return;

Get the Folder creation time
This. datetimepicker1.text = directory. getcreationtime (this. textbox1.text). tolongdatestring ();

Obtain the last modification time of a folder.
This. datetimepicker2.text = directory. getlastwritetime (this. textbox1.text). tolongdatestring ();

Obtain the last access time of a folder.
This. datetimepicker3.text = directory. getlastaccesstime (this. textbox1.text). tolongdatestring ();

Get folder Properties
Fileattributes myattributes = file. getattributes (this. textbox1.text );
String myfiletype = myattributes. tostring ();
If (myfiletype. lastindexof ("hidden ")! =-1)
{

Determine hidden folder attributes
This. checkbox3.checked = true;
}
If (myfiletype. lastindexof ("ARCHIVE ")! =-1)
{

Determine the folder archive attributes
This. checkbox4.checked = true;
}

Set folder Properties
If (this. textbox1.text. Length <2)
Return;

Set the folder property to normal
File. setattributes (this. textbox1.text, fileattributes. Normal );
Fileattributes myattributes = file. getattributes (this. textbox1.text );
If (this. checkbox3.checked = true)
{

Set folder hide attributes
File. setattributes (this. textbox1.text, myattributes | fileattributes. Hidden );
}
Myattributes = file. getattributes (this. textbox1.text );
If (this. checkbox4.checked = true)
{

Set folder archive attributes
File. setattributes (this. textbox1.text, myattributes | fileattributes. Archive );

Set the Folder creation time
Directory. setcreationtime (this. textbox1.text, this. datetimepicker1.value );

Set the last modification time of the folder.
Directory. setlastwritetime (this. textbox1.text, this. datetimepicker2.value );

Set the last access time of the folder
Directory. setlastaccesstime (this. textbox1.text, this. datetimepicker3.value );
MessageBox. Show ("folder attribute setting operation successful! "," Information prompt ",*******);

Determine whether a file already exists
String myfilename = This. textbox1.text;
If (myfilename. Length <1)
Return;
String shortname = myfilename. substring (myfilename. lastindexof ("//") + 1 );
If (file. exists (myfilename ))
{
MessageBox. Show ("file:" + shortname + "already exists! "," Message prompt ",*****);}
Else
{
MessageBox. Show ("file:" + shortname + "does not exist! "," Information prompt ",*****);
}

Determine whether a folder already exists
String myfoldername = This. textbox2.text;
If (myfoldername. Length <1)
Return;
String Foldername = myfoldername. substring (myfoldername. lastindexof ("//") + 1 );
If (directory. exists (myfoldername ))
{
MessageBox. Show ("folder:" + Foldername + "already exists! "," Information prompt ",*****);
}
Else
{
MessageBox. Show ("folder:" + Foldername + "does not exist! "," Information prompt ",*****);
}

Delete folder
If (this. textbox1.text. Trim () = "")
Return;
Directoryinfo mydir = new directoryinfo (this. textbox1.text );
If (MessageBox. Show ("delete Folder:" + this. textbox1.text + "and all its contents? "," Prompt ", messageboxbuttons. yesno, messageboxicon. Question) = dialogresult. Yes)
{
Mydir. Delete (true );
This. textbox1.text = "";
}

Create multi-layer folders
If (this. textbox2.text. Trim () = "")
Return;
If (directory. exists (this. textbox2.text ))
{
MessageBox. Show ("this folder already exists! "," Prompt ", messageboxbuttons. OK, messageboxicon. information );
Return;
}
If (MessageBox. Show ("whether to create a multi-layer Folder:" + this. textbox2.text, "prompt", messageboxbuttons. yesno, messageboxicon. Question) = dialogresult. Yes)
{
Directory. createdirectory (this. textbox2.text );
This. textbox2.text = "";
}