/// <summary>
/// Changes the children list to the specified type.
/// </summary>
/// <typeparam name="TList">A type that implements <see cref="IList{T}" /> interface and has a public default constructor.</typeparam>
public void SetChildrenListType <TList>() where TList : IList <Tree <T> >, new()
{
if (_children == null)
{
_children = new TList();
}
else
{
if (typeof(TList).Equals(_children.GetType()))
{
return;
}
var nlist = new TList();
nlist.AddRange(_children, 0);
_children = nlist;
}
}
/// <summary>
/// Returns a list of directories under RootDirectory
/// </summary>
/// <param name="RootDirectory">starting directory</param>
/// <param name="SearchAllDirectories">when true, all sub directories will be searched as well</param>
/// <param name="Filter">filter to be done on directory. use null for no filtering</param>
public static TList<string> DirectoryList(string RootDirectory, bool SearchAllDirectories, Predicate<string> Filter)
{
TList<string> retList = new TList<string>();
try
{
// create a directory info object
DirectoryInfo di = new DirectoryInfo(RootDirectory);
// loop through directories populating the list
Parallel.ForEach(di.GetDirectories(), folder =>
{
try
{
// add the folder if it passes the filter
if ((Filter == null) || (Filter(folder.FullName)))
{
// add the folder
retList.Add(folder.FullName);
// get it's sub folders
if (SearchAllDirectories)
retList.AddRange(DirectoryList(folder.FullName, true, Filter));
}
}
catch (IOException)
{
// don't really need to do anything
// user just doesn't have access
}
catch (UnauthorizedAccessException)
{
// don't really need to do anything
// user just doesn't have access
}
catch (Exception excep)
{
// TODO: save to an error log somewhere
// for now, write to console
Console.WriteLine("Error: {0}", excep.Message);
}
});
}
catch (IOException)
{
// don't really need to do anything
// user just doesn't have access
}
catch (UnauthorizedAccessException)
{
// don't really need to do anything
// user just doesn't have access
}
catch (Exception excep)
{
// TODO: save to an error log somewhere
// for now, write to console
Console.WriteLine("Error: {0}", excep.Message);
}
finally
{
// force garbage collection
GC.Collect();
Thread.Sleep(10);
}
// return the list
return retList;
}