下拉列表的字体样式asp.net

代码:

foreach (FontFamily font in fonts.Families)
        {
            ddlFontName.Items.Add(font.Name); // Working
        }

        for (int row = 0; row < ddlFontName.Items.Count; row++)
        {
            ddlFontName.Items[row].Attributes.Add("style", "font-family:" + ddlFontName.Items[row].Value); // Not Working
        }