GetSafePath - given any path from any OS remove illegal characters and use the current OS Directory Seperator Char

GetSafePath.cs

public static string GetSafePath(string filePath)
{
    if (string.IsNullOrEmpty(filePath)) return string.Empty;

    //Strip invalid chars
    foreach (var invalidChar in Path.GetInvalidPathChars())
    {
        filePath = filePath.Replace(invalidChar.ToString(), String.Empty);
    }

    return filePath
        .TrimStart('.', '/', '\\')                      //Remove illegal chars at the start
        .Replace('\\', '/')                             //Switch all to use the same seperator
        .Replace("../", string.Empty)                   //Remove access to top-level directories anywhere else 
        .Replace('/', Path.DirectorySeparatorChar);     //Switch all to use the OS seperator
}

public static string AnotherWay()
{
   Console.WriteLine("..{0}Data{0}uploads{0}{{filename}}", Path.DirectorySeparatorChar);

}