Disabling theme support on a control property (C#) : Themes « Custom Controls « ASP.NET Tutorial

1. ASP.NET Tutorial
2. Custom Controls
3. Themes

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebControlLibrary1
{
    [DefaultProperty("Text")]
    [ToolboxData("<{0}:WebCustomControl1 runat=server></{0}:WebCustomControl1>")]
    public class WebCustomControl1 : WebControl
    {
        private string text;

        [Bindable(true)]
        [Category("Appearance")]
        [DefaultValue("")]
        [Themeable(false)]
        public string Text
        {
            get
            {
                return text;
            }
            set
            {
                text = value;
            }
        }

        protected override void Render(HtmlTextWriter output)
        {
            output.RenderBeginTag(HtmlTextWriterTag.Div);

            output.AddAttribute(HtmlTextWriterAttribute.Type, "text");
            output.AddAttribute(HtmlTextWriterAttribute.Id, this.ClientID);
            output.AddAttribute(HtmlTextWriterAttribute.Name, this.ClientID);
            output.AddAttribute(HtmlTextWriterAttribute.Value, this.Text);
            output.RenderBeginTag(HtmlTextWriterTag.Input);
            output.RenderEndTag();

            output.RenderEndTag();
        } 

    }
}