Pretty URLs, Separation of Layers and O/R Mapping in Web Forms ASP.NET 2.0

using System.Web.UI;
using System.Web;




public class FormRewriterControlAdapter : System.Web.UI.Adapters.ControlAdapter
{
    protected override void Render(System.Web.UI.HtmlTextWriter writer)
    {
        base.Render(new RewriteFormHtmlTextWriter(writer));
    }


}

public class RewriteFormHtmlTextWriter : System.Web.UI.HtmlTextWriter
{

    public RewriteFormHtmlTextWriter(HtmlTextWriter writer)
        : base(writer)
    {

        this.InnerWriter = writer.InnerWriter;
    }

    public RewriteFormHtmlTextWriter(System.IO.TextWriter writer)
        : base(writer)
    {

        base.InnerWriter = writer;
    }

    public override void WriteAttribute(string name, string value, bool fEncode)
    {

        /* If the attribute we are writing is the "action" attribute, and we are not on a sub-control, 
         then replace the value to write with the raw URL of the request - which ensures that we'll
         preserve the PathInfo value on postback scenarios
        */

        if (name == "action")
        {

            HttpContext Context = HttpContext.Current;

            if (Context.Items["ActionAlreadyWritten"] == null)
            {

                /*Because we are using the UrlRewriting.net HttpModule, we will use the 
                 Request.RawUrl property within ASP.NET to retrieve the origional URL
                 before it was re-written.  You'll want to change the line of code below
                 if you use a different URL rewriting implementation.
                */

                value = Context.Request.RawUrl; 
                
                /* Indicate that we've already rewritten the <form>'s action attribute to prevent
                 us from rewriting a sub-control under the <form> control
                */

                Context.Items["ActionAlreadyWritten"] = true;

            }

        }

        base.WriteAttribute(name, value, fEncode);

    }

}