genrate dinamic slider using aps.net C# with css and JS (wowslider)

// get css from wowslider
// get JS from wowslider

protected void generate_slider()

    {

        string paths = Server.MapPath("FolderName");

        DirectoryInfo d = new DirectoryInfo(paths);

        FileInfo[] Files = d.GetFiles("*");

        HtmlImage img;

        HtmlGenericControl li;

        foreach (FileInfo file in Files)

        {

            string filename = file.Name;// file name find

            string[] str = filename.Split('_');// split with your condtion

            if (str[0] == "check id condition here")

            {

                li = new HtmlGenericControl("li");

                img = new HtmlImage();

                img.Src = "Photo Gallery/" + filename;

                img.Style.Add("min-height:50px; max-height:250px; min-width", "20%");

                img.Alt = "";

                img.ID = str[0] + "" + str[1];

                li.Controls.Add(img);

                sliderid.Controls.Add(li); 

//add htmlgenericcontrol with server control here 'sliderid= server control id'

            }

        }

// reference

http://wowslider.com/image-slider-jquery-epsilon-collage-demo.html