How to erase all the files and folders in the Selected existing directory

[marcel]

Do it "urself"!


Regards

[merry]

Thanx Marcel for the reply

Ok I 'll do it myself only.

[marcel]

Here it is. I just tested it:

This is where it starts( the wrapper):

void qttest::clearAll() 
{
    QString dirRoot = "c:\\testdir";
    clearAll(dirRoot);
    QDir d(dirRoot);
    d.cdUp();
    d.rmdir(dirRoot);
}

void qttest::clearAll() 
{
    QString dirRoot = "c:\\testdir";
    clearAll(dirRoot);
    QDir d(dirRoot);
    d.cdUp();
    d.rmdir(dirRoot);
}

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This is the actual function:

void qttest::clearAll(QString dirPath) 
{
  QDir dir(dirPath);
  QList<QFileInfo> infLst = dir.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot);
  foreach(QFileInfo finfo, infLst )
  {
    if(finfo.isDir() )
    {
      clearAll(finfo.absoluteFilePath());
      dir.rmdir(finfo.absoluteFilePath());
    }
    else 
    { //file
        dir.remove(finfo.absoluteFilePath());
    }
  }
}

void qttest::clearAll(QString dirPath) 
{
  QDir dir(dirPath);
  QList<QFileInfo> infLst = dir.entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot);
  foreach(QFileInfo finfo, infLst )
  {
    if(finfo.isDir() )
    {
      clearAll(finfo.absoluteFilePath());
      dir.rmdir(finfo.absoluteFilePath());
    }
    else 
    { //file
        dir.remove(finfo.absoluteFilePath());
    }
  }
}

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Regards.

[merry]

Hi Marcel


Can u pls tell me in function

void qttest::clearAll() 
{
    QString dirRoot = "c:\\testdir";
    clearAll(dirRoot);
    QDir d(dirRoot);
    d.cdUp();
    d.rmdir(dirRoot);
}

void qttest::clearAll() 
{
    QString dirRoot = "c:\\testdir";
    clearAll(dirRoot);
    QDir d(dirRoot);
    d.cdUp();
    d.rmdir(dirRoot);
}

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Why you used this(4th line of the above code) that is:

clearAll(dirRoot);

clearAll(dirRoot);

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Thanx

[marcel]

You should pass there the directory returned by the file dialog.
clearAll() without any parameters is just an overloaded variant of the second, provided for convenince.

It is really not that different than the first version.
I just passed a folder that I created on my hard disk.

And don't say it doesn't work because it does. If you don't mess up the code, then it will work for you too.

Regards

[merry]

Hi Marcel

Thanx Marcel for helping me so much

Pls dont get angry on me....

I think I am not messing the code now , It is same as the code u sent to me , Is'nt it...

But it also deletes the files but not folders.....

void Form1::ShowFileDialog()
{
  m_file=QFileDialog::getExistingDirectory(this, tr("Open Directory"),
                                                 "/home",
                                                 QFileDialog::ShowDirsOnly
										  	| QFileDialog::DontResolveSymlinks);
 
 
 
filename->setText(m_file);
 
}
 
void Form1::DeleteData()
{  
    QString dirRoot = m_file;
    DeleteData(dirRoot);
    QDir d(dirRoot);
    d.cdUp();
    d.rmdir(dirRoot);
}
////////////////////////////////////////////////////////////////////////
 
/*Function for erasing*/
 
void Form1::DeleteData(QString dirViewPath)
    {     
      QDir dirPath(dirViewPath); 
         if (dirPath.exists())
		 {
		   QList<QFileInfo> infLst = dirPath.entryInfoList();
		   for(int i=0;i<infLst.size();i++)
           {
	         QFileInfo strFileInfo = infLst.at(i);
	         QString strFileName = strFileInfo.fileName();
	         if(!(strFileInfo.fileName() == "." || strFileInfo.fileName() == ".."))
		      {
	           if(strFileInfo.isDir())
	            {
		          		DeleteData(strFileInfo.absoluteFilePath());
					dirPath.rmdir(strFileInfo.absoluteFilePath());
                }
				else
	            {
 
				  dirPath.remove(strFileInfo.absoluteFilePath());
 
			  }
		   }
 
	   }
	}
  }

void Form1::ShowFileDialog()
{
  m_file=QFileDialog::getExistingDirectory(this, tr("Open Directory"),
                                                 "/home",
                                                 QFileDialog::ShowDirsOnly
										  	| QFileDialog::DontResolveSymlinks);
											
											
																							
filename->setText(m_file);

}

void Form1::DeleteData()
{  
    QString dirRoot = m_file;
    DeleteData(dirRoot);
    QDir d(dirRoot);
    d.cdUp();
    d.rmdir(dirRoot);
}
////////////////////////////////////////////////////////////////////////

/*Function for erasing*/

void Form1::DeleteData(QString dirViewPath)
    {     
      QDir dirPath(dirViewPath); 
         if (dirPath.exists())
		 {
		   QList<QFileInfo> infLst = dirPath.entryInfoList();
		   for(int i=0;i<infLst.size();i++)
           {
	         QFileInfo strFileInfo = infLst.at(i);
	         QString strFileName = strFileInfo.fileName();
	         if(!(strFileInfo.fileName() == "." || strFileInfo.fileName() == ".."))
		      {
	           if(strFileInfo.isDir())
	            {
		          		DeleteData(strFileInfo.absoluteFilePath());
					dirPath.rmdir(strFileInfo.absoluteFilePath());
                }
				else
	            {
				 
				  dirPath.remove(strFileInfo.absoluteFilePath());
				 
			  }
		   }
		   
	   }
	}
  }

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Thanx

[marcel]

Are you sure you have permissions to delete the directories?
Are you running as root or as a normal user?

[merry]

I m running as a normal user

[marcel]

Well, could you try running it as root?

[merry]

I tried it running as a root

It works , but for that directories only which contains files only.

not for that directories which contains both files and folders ..


Thanx

[marcel]

Sorry, but can't help you. I really can't understand what's going on.
I tested it on the following structure. Every directory in there had 1,2 or three files in it.
So I can't say what is going on in your case.

Regards

[marcel]

One more thing:
Make sure there isn't any browser opened on any of the directories you're trying to delete.
Actually, close all the browsers(file system browsers) and run the program.

Regards