[Bindable(true)]
        [Category("Appearance")]
        [Localizable(true)]
        [DefaultValue("")]
        public string Text
        {
            get
            {
                if (EnableViewState && ViewState["Text"] != null)
                {
                    return (String)ViewState["Text"];
                }
                return string.Empty;
            }

            set
            {
                if(EnableViewState)
                    ViewState["Text"] = value;
            }
        }

        private string _font_family = string.Empty;

        [Bindable(true)]
        [Category("Appearance")]
        [Localizable(true)]
        [Description("字体库")]
        [Editor(typeof(FontCollectionEditor), typeof(UITypeEditor))]
        public string Font_Family
        {
            get
            {
                if (EnableViewState && ViewState["Font_Family"] != null)
                    return (string)ViewState["Font_Family"];
                return _font_family;
            }

            set
            {
                if (EnableViewState)
                    ViewState["Font_Family"] = value;
                _font_family = value;
            }
        }
protected override void RenderContents(HtmlTextWriter output)
        {
            output.Write(getData());
        }


        private string getData()
        {
            StringBuilder sb = new StringBuilder();
            sb.Append("text:"+Text+":text");
            sb.Append("<select id=\"SelectFont\" style=\"width: 100px; height: 20px\">");
            sb.Append("<option>字体</option>");
            if (string.IsNullOrEmpty(Font_Family))
                foreach (string f in Font_Family.Split(','))
                    sb.Append("<option>" + f + "</option>");
            if (string.IsNullOrEmpty(_font_family))
                foreach (string f in _font_family.Split(','))
                    sb.Append("<option>" + f + "</option>");
            sb.Append("</select>");

            sb.Append("字数限制为" + Fonts_Count.ToString());
            return sb.ToString();

        }









class FontCollectionEditor : CollectionEditor
    {
        public FontCollectionEditor(Type type) : base(type)
        {
        }

        public override UITypeEditorEditStyle GetEditStyle(System.ComponentModel.ITypeDescriptorContext context)
        {
            return UITypeEditorEditStyle.Modal;
        }

        public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, IServiceProvider provider, object value)
        {
            IWindowsFormsEditorService service = (IWindowsFormsEditorService) provider.GetService(typeof (IWindowsFormsEditorService));
            FortsForm ff = new FortsForm("");
            service.ShowDialog(ff);
            string data = ff.data;
            ff.Dispose();
            if (!string.IsNullOrEmpty(data))
            {
                return data;
            }
            return string.Empty;
        }
    }