Add Section web edit code

namespace Sitecore.BulkOperations
{
    public class AddSection : WebEditCommand
    {
        public override void Execute(CommandContext context)
        {
            if (context.Items.Length <= 0)
                return;
            Item obj = context.Items[0];
            NameValueCollection parameters = new NameValueCollection();
            parameters["id"] = obj.ID.ToString();
            parameters["language"] = Context.Language == (Language)null ? obj.Language.ToString() : Context.Language.ToString();
            parameters["version"] = obj.Version.ToString();
            parameters["database"] = obj.Database.Name;
            parameters["user"] = Context.User.Name;
            parameters["isPageEditor"] = context.Parameters["pageEditor"] == "1" ? "1" : "0";
            parameters["searchString"] = context.Parameters.GetValues("url")[0].Replace("\"", string.Empty);
            Context.ClientPage.Start((object)this, "Run", parameters);
        }
        protected void Run(ClientPipelineArgs args)
        {
            Assert.ArgumentNotNull((object)args, "args");
            if (!SheerResponse.CheckModified())
                return;
            if (args.IsPostBack)
            {
                if (!args.HasResult)
                    return;
                Item obj = Factory.GetDatabase(args.Parameters["database"]).GetItem(args.Parameters["id"]);
                string str = args.Parameters["user"];
                List<SearchStringModel> searchQuery = UIFilterHelpers.ExtractSearchQuery(args.Parameters["searchString"]);
                var section = args.Result;
                if (!string.IsNullOrEmpty(section))
                {
                    ProgressBox.Execute(Translate.Text("Adding Section"), Translate.Text("Adding Sectio to blogs"), "~/icon/Applications/32x32/bullet_ball_red.png", new ProgressBoxMethod(this.StartProcess), (object)obj, (object)searchQuery, (object)offer, (object)str);
                }
                SheerResponse.Alert(Translate.Text("Finished Adding Section for all selected blogs"), new string[0]);
            }
            else
            {
                List<SearchStringModel> searchQuery = UIFilterHelpers.ExtractSearchQuery(args.Parameters["searchString"]);
                SitecoreIndexableItem sitecoreIndexableItem = (SitecoreIndexableItem)Factory.GetDatabase(args.Parameters["database"]).GetItem(args.Parameters["id"]);
                using (IProviderSearchContext searchContext = ContentSearchManager.GetIndex((IIndexable)sitecoreIndexableItem).CreateSearchContext(SearchSecurityOptions.EnableSecurityCheck))
                {
                    if (!Queryable.Any<SitecoreUISearchResultItem>(LinqHelper.CreateQuery<SitecoreUISearchResultItem>(searchContext, (IEnumerable<SearchStringModel>)searchQuery, (Item)sitecoreIndexableItem, (IEnumerable<IExecutionContext>)null)))
                        return;
                    //Gets the url of the 
                    var url = new UrlString(UIUtil.GetUri("control:AddSection"));
                    Sitecore.Context.ClientPage.ClientResponse.ShowModalDialog(url.ToString(), "1200", "700", string.Empty, true);
                    args.WaitForPostBack(true);
                }
            }
        }
        private void StartProcess(params object[] parameters)
        {
            SitecoreIndexableItem sitecoreIndexableItem = (SitecoreIndexableItem)((Item)parameters[0]);
            if (sitecoreIndexableItem == null)
            {
                Log.Error("Add Section - Unable to cast current item - " + parameters[0].GetType().FullName, (object)this);
            }
            else
            {
                List<SearchStringModel> list = (List<SearchStringModel>)parameters[1];
                var offer = (string)parameters[2];
                string accountName = (string)parameters[3];
                Job job = Context.Job;
                Assert.IsNotNull((object)job, "UI Job");
                Language language = Context.Language;
                if (job.Options != null)
                    language = job.Options.ClientLanguage;
                using (IProviderSearchContext searchContext = ContentSearchManager.GetIndex((IIndexable)sitecoreIndexableItem).CreateSearchContext(SearchSecurityOptions.EnableSecurityCheck))
                {
                    IQueryable<SitecoreUISearchResultItem> query = LinqHelper.CreateQuery<SitecoreUISearchResultItem>(searchContext, (IEnumerable<SearchStringModel>)list, (Item)sitecoreIndexableItem, (IEnumerable<IExecutionContext>)null);
                    if (!Queryable.Any<SitecoreUISearchResultItem>(query))
                        return;
                    Account account = Account.FromName(accountName, AccountType.User);
                    int num1 = Queryable.Count<SitecoreUISearchResultItem>(query);
                    int num2 = 1;
                    string str2 = Translate.TextByLanguage("Processed", language);
                    foreach (SitecoreUISearchResultItem searchResultItem in (IEnumerable<SitecoreUISearchResultItem>)query)
                    {
                        job.Status.Messages.Add(string.Format("{0}: {1}/{2}", (object)str2, (object)num2, (object)num1));
                        ++num2;
                        Item obj = searchResultItem.GetItem();
                        if (obj != null)
                        {
                            using (new SecurityEnabler())
                            {
                                if (!obj.Security.CanWrite(account))
                                    continue;
                            }
                            if (obj.Fields[Sitecore.Buckets.Util.Constants.SemanticsField] != null)
                            {
                                Guid mainID;
                                obj.Editing.BeginEdit();
                                if (obj.Fields["Section"] != null && Guid.TryParse(offer, out mainID))
                                    obj.Fields["Section"].Value = new ID(mainID).ToString();
                                obj.Editing.EndEdit();
                            }
                        }
                    }
                }
            }
        }
    }
}