sectionlist.cs

这是一个简单的论坛程序源码

using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using NetFocus.Web.Core;

namespace NetFocus.Web.Applications.Forum
{
    public class SectionList : UserControl
    {
        protected Repeater list;
        protected ValuedDropDownList groupDropDownList;

        protected override void OnLoad(EventArgs e)
        {
            if (!Page.IsPostBack && !AjaxManager.IsCallBack)
            {
                BindData();
            }
            groupDropDownList.SelectedIndexChanged += new EventHandler(groupDropDownList_SelectedIndexChanged);
            AjaxManager.Register(this, "AjaxMethod");
        }

        private void BindData()
        {
            if (groupDropDownList != null)
            {
                EntityList groups = BusinessManager.GetGroupList(RequestBuilder.BuildGroupListRequest());
                Group topGroup = new Group();
                topGroup.Subject = "所有版块组";
                groups.Insert(0, topGroup);

                groupDropDownList.DataSource = groups;
                groupDropDownList.DataTextField = "Subject";
                groupDropDownList.DataValueField = "EntityId";
                groupDropDownList.DataBind();
                if (WebContext.Current.GroupId > 0)
                {
                    groupDropDownList.Value = WebContext.Current.GroupId.ToString();
                }
            }
            if (list != null)
            {
                list.DataSource = BusinessManager.GetSectionList(RequestBuilder.BuildSectionListRequest(WebContext.Current.GroupId));
                list.DataBind();
            }
        }

        private void groupDropDownList_SelectedIndexChanged(object sender, EventArgs e)
        {
            list.DataSource = BusinessManager.GetSectionList(RequestBuilder.BuildSectionListRequest(int.Parse(groupDropDownList.SelectedValue)));
            list.DataBind();
        }

        #region Ajax Method

        [AjaxMethod(IncludeControlValuesWithCallBack = false)]
        public void DeleteSection(int sectionId)
        {
            BusinessManager.DeleteSection(sectionId);
        }

        [AjaxMethod(IncludeControlValuesWithCallBack = false)]
        public void DeleteSections(string articleCategoryIds)
        {
            if (string.IsNullOrEmpty(articleCategoryIds))
            {
                return;
            }
            string[] articleCategoryIdArray = articleCategoryIds.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
            int articleCategoryId = 0;
            foreach (string stringArticleCategoryId in articleCategoryIdArray)
            {
                try
                {
                    articleCategoryId = Int32.Parse(stringArticleCategoryId);
                }
                catch
                {
                    continue;
                }
                if (articleCategoryId > 0)
                {
                    DeleteSection(articleCategoryId);
                }
            }
        }

        #endregion

    }
}