/// <summary>
/// Creates a new sub-directory with a default name in this directory.
/// </summary>
/// <param name="editing">Indicates whether the new sub-directory should be put in edit mode immediately when constructed.</param>
/// <returns>A new instance of <see cref="DirectoryViewModel"/> representing the new sub-directory.</returns>
public DirectoryViewModel CreateSubDirectory(bool editing)
{
var newDirectory = new DirectoryViewModel(NamingHelper.ComputeNewName(NewFolderDefaultName, SubDirectories.Cast <DirectoryBaseViewModel>(), x => x.Name), this, true)
{
IsEditing = editing
};
return(newDirectory);
}