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C# delete a folder and all files and folders within that folder

I'm trying to delete a folder and all files and folders within that folder, I'm using the code below开发者_JAVA百科 and I get the error Folder is not empty, any suggestions on what I can do?

try
{
  var dir = new DirectoryInfo(@FolderPath);
  dir.Attributes = dir.Attributes & ~FileAttributes.ReadOnly;
  dir.Delete();
  dataGridView1.Rows.RemoveAt(dataGridView1.SelectedRows[i].Index);
}
catch (IOException ex)
{
  MessageBox.Show(ex.Message);
}


dir.Delete(true); // true => recursive delete


Read the Manual:

Directory.Delete Method (String, Boolean)

Directory.Delete(folderPath, true);


Try:

System.IO.Directory.Delete(path,true)

This will recursively delete all files and folders underneath "path" assuming you have the permissions to do so.


For those of you running into the DirectoryNotFoundException, add this check:

if (Directory.Exists(path)) Directory.Delete(path, true);


The Directory.Delete method has a recursive boolean parameter, it should do what you need


Err, what about just calling Directory.Delete(path, true); ?


You should use:

dir.Delete(true);

for recursively deleting the contents of that folder too. See MSDN DirectoryInfo.Delete() overloads.


Try this.

namespace EraseJunkFiles
{
    class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo yourRootDir = new DirectoryInfo(@"C:\somedirectory\");
            foreach (DirectoryInfo dir in yourRootDir.GetDirectories())
                    DeleteDirectory(dir.FullName, true);
        }
        public static void DeleteDirectory(string directoryName, bool checkDirectiryExist)
        {
            if (Directory.Exists(directoryName))
                Directory.Delete(directoryName, true);
            else if (checkDirectiryExist)
                throw new SystemException("Directory you want to delete is not exist");
        }
    }
}
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