protected void Page_Load(object sender, EventArgs e) { SiteDb2Entities db = new SiteDb2Entities(); int id = Convert.ToInt32(Request.QueryString["KATEGORIID"]); var p = db.Tbl_Kategori.Find(id); db.Tbl_Kategori.Remove(p); db.SaveChanges(); Response.Redirect("Kategoriler.aspx"); }