How to lock folder by programmatically in c#.net?
                            
                         
                        
                     
                 
                
                    I am developing a window application of screen capturing for my company use. I want capture the screen shoot and store those screen shots automatically in lock folder by programming. And after storing, i want to upload those screen shots on my company's server from that lock folder. so, I don't want to perform operations like delete, copy, paste on that folder. My problem is that, when I write Fullcontrol then I'm not able to store that screen shots in folder. So, Please tell me, how to do this? Which kind of access i have to give? 
 
This is my code: 
  
 private void Permissionbtn_Click_1(object sender, EventArgs e)
 {
 DirectoryInfo myDirectoryInfo = new DirectoryInfo(textBox1.Text);
 
 DirectorySecurity myDirectorySecurity = myDirectoryInfo.GetAccessControl();
 string User = System.Environment.UserDomainName + "\\" +
 comboBox1.SelectedItem.ToString();
 myDirectorySecurity.AddAccessRule(new FileSystemAccessRule(User,
 FileSystemRights.Read , AccessControlType.Deny));
 
 myDirectoryInfo.SetAccessControl(myDirectorySecurity);
 
 MessageBox.Show("Permissions Altered Successfully");
 }