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FileDialog ADialog_openFileW = new OpenFileDialog();
            DialogResult AopenDialog_resultW = ADialog_openFileW.ShowDialog();
            AsaveFileNameW = ADialog_openFileW.FileName;

            if (AopenDialog_resultW == DialogResult.OK)
            {
                for (int AdeleteW = 0; AdeleteW < AarrayW.Length && AarrayW[AdeleteW] != null; AdeleteW++) //Array löschen
                {
                    AarrayW[AdeleteW] = null;
                }
                Stream AsaveTestW = new FileStream(AsaveFileNameW, FileMode.Open);
                BinaryFormatter AbinaryFormatterW = new BinaryFormatter();
                AarrayW=(AGenericTestW[]) AbinaryFormatterW.Deserialize(AsaveTestW);
                Acombobox_actualtestW.Items.Clear();                                                           //Comboboxeinträge löschen