fCraft.ConfigGUI.MainForm.IsWorldNameTaken C# (CSharp) Метод

        internal static bool IsWorldNameTaken( string name )
        {
            return Worlds.Any( world => world.Name.Equals( name, StringComparison.OrdinalIgnoreCase ) );
        }

 void tName_Validating(object sender, CancelEventArgs e)
 {
     if (fCraft.World.IsValidName(tName.Text) &&
         (!MainForm.IsWorldNameTaken(tName.Text) ||
          (originalWorldName != null && tName.Text.ToLower() == originalWorldName.ToLower())))
     {
         tName.ForeColor = SystemColors.ControlText;
     }
     else
     {
         tName.ForeColor = System.Drawing.Color.Red;
         e.Cancel        = true;
     }
 }