问如何在ViewHolder中存储原始值？

EN

    public override void BindView(View view, Context context, ICursor cursor)
    {
        var viewHolder = view.Tag as ViewHolder;

        if (viewHolder.GroupCheckedTextView != null)
        {
            viewHolder.GroupCheckedTextView.Text = cursor.GetString(ColumnMapping["Name"]);
        }

        if (viewHolder.FieldTextView != null)
        {
            viewHolder.FieldTextView.Text = cursor.GetString(ColumnMapping["Value"]);
            viewHolder.LabelTextView.Text = cursor.GetString(ColumnMapping["Label"]) ?? cursor.GetString(ColumnMapping["TypeLabel"]);
        }

        // I tried updating it manually, but it doesn't stick...
        //viewHolder.GroupId = cursor.GetInt(ColumnMapping["GroupId"]);
        //view.Tag = viewHolder;
    }

    public override View NewView(Context context, ICursor cursor, ViewGroup parent)
    {
        var inflator = LayoutInflater.FromContext(context);
        View view = null;

        if (IsNewGroup(cursor, cursor.Position))
        {
            view = inflator.Inflate(Resource.Layout.Group, parent, false);
        }
        else
        {
            view = inflator.Inflate(Resource.Layout.Field, parent, false);
        }

        var viewHolder = new ViewHolder(view);
        viewHolder.GroupId = cursor.GetInt(ColumnMapping["GroupId"]);
        view.Tag = viewHolder;

        return view;
    }