void UploadImage(Guid group_id, int seq, string UserHostAddress, Guid?userid)
        {
            var entity = UMC.Data.Database.Instance().ObjectEntity <UMC.Data.Entities.Picture>();

            entity.Where.And().Equal(new UMC.Data.Entities.Picture {
                Seq = seq, group_id = group_id
            });
            if (entity.Update(new UMC.Data.Entities.Picture
            {
                Location = UserHostAddress,
                UploadDate = DateTime.Now,
                user_id = userid
            }) == 0)
            {
                var photo = new UMC.Data.Entities.Picture
                {
                    Location   = UserHostAddress,
                    group_id   = group_id,
                    Seq        = seq,
                    user_id    = userid,
                    UploadDate = DateTime.Now
                };
                entity.Insert(photo);
            }
        }
        public override void ProcessActivity(WebRequest request, WebResponse response)
        {
            var strId = this.AsyncDialog("Id", g =>
            {
                return(new Web.UITextDialog()
                {
                    Title = "主题"
                });
            });
            var form = request.SendValues ?? new UMC.Web.WebMeta();

            var sid = UMC.Data.Utility.Guid(strId, true);
            var seq = Utility.IntParse(this.AsyncDialog("Seq", g =>
            {
                return(this.DialogValue("0"));
            }), 0);
            var webr = UMC.Data.WebResource.Instance();
            var Url  = this.AsyncDialog("Url", gK =>
            {
                if (form.ContainsKey("limit") == false)
                {
                    this.Context.Send(new UISectionBuilder(request.Model, request.Command, request.Arguments)

                                      .CloseEvent("image")
                                      .Builder(), true);
                }

                var args = request.Arguments.GetDictionary();

                int limit = UMC.Data.Utility.IntParse(form["limit"] as string, 25);

                int start     = UMC.Data.Utility.IntParse(form["start"] as string, 0);
                var ui        = UISection.Create();
                var subEntity = Utility.CMS.ObjectEntity <UMC.Data.Entities.Subject>();
                subEntity.Where.And().Equal(new UMC.Data.Entities.Subject {
                    Id = sid
                });

                var title = new UITitle("正文图片");
                //title.Float();
                ui.Title = title;

                var items  = new List <WebMeta>();
                var domain = webr.WebDomain();


                var su2bs = subEntity.Single() ?? new UMC.Data.Entities.Subject {
                    Id = sid
                };

                var celss = UMC.Data.JSON.Deserialize <WebMeta[]>((String.IsNullOrEmpty(su2bs.DataJSON) ? "[]" : su2bs.DataJSON)) ?? new UMC.Web.WebMeta[] { };
                foreach (var pom in celss)
                {
                    switch (pom["_CellName"])
                    {
                    case "CMSImage":
                        var value = pom.GetMeta("value");
                        var src   = value["src"];
                        if (String.IsNullOrEmpty(src) == false)
                        {
                            if (src.StartsWith(domain) || src.StartsWith("http://www.365lu.cn") || src.StartsWith("https://www.365lu.cn") || src.StartsWith("https://oss.") || src.StartsWith("http://oss.")
                                )
                            {
                                var ind = src.IndexOf("!");
                                if (ind > 0)
                                {
                                    src = src.Substring(0, ind);
                                }
                                items.Add(new UMC.Web.WebMeta().Put("src", src + "!200").Put("click", new Web.UIClick(new UMC.Web.WebMeta(args).Put(gK, src))
                                {
                                    Model   = request.Model,
                                    Command = request.Command
                                }));
                            }
                        }

                        break;
                    }
                }
                if (items.Count > 0)
                {
                    var nine = new UMC.Web.WebMeta().Put("images", items);
                    ui.NewSection().Add(UICell.Create("NineImage", nine));
                }
                else
                {
                    ui.Add("Desc", new UMC.Web.WebMeta().Put("desc", "图文未有图片或图片非本站").Put("icon", "\uF016"), new UMC.Web.WebMeta().Put("desc", "{icon}\n{desc}"),

                           new UIStyle().Align(1).Color(0xaaa).Padding(20, 20).BgColor(0xfff).Size(12).Name("icon", new UIStyle().Font("wdk").Size(60)));
                }
                //ui.AddCells(celss); ;

                response.Redirect(ui);
                return(this.DialogValue("none"));
            });

            var entity = Utility.CMS.ObjectEntity <UMC.Data.Entities.Picture>();

            entity.Where.And().Equal(new UMC.Data.Entities.Picture {
                Seq = seq, group_id = sid
            });
            var pic  = entity.Single();
            var user = UMC.Security.Identity.Current;

            if (pic == null)
            {
                pic = entity.Where.Reset().And().Equal(new Picture {
                    group_id = sid
                }).Entities.Max(new Picture {
                    Seq = 0
                });                                                                                                          //.Seq + 1;
                pic.Seq = (pic.Seq ?? 0) + 1;
                var photo = new UMC.Data.Entities.Picture
                {
                    group_id   = sid,
                    Seq        = pic.Seq,
                    user_id    = user.Id,
                    UploadDate = DateTime.Now
                };
                entity.Insert(photo);
            }
            else
            {
                entity.Update(new UMC.Data.Entities.Picture
                {
                    Location   = request.UserHostAddress,
                    UploadDate = DateTime.Now,
                    user_id    = user.Id
                });
            }
            webr.Transfer(new Uri(Url), sid.Value, pic.Seq ?? 1);
            this.Context.Send("image", true);
        }