editannouncements.aspx.cs

来自「三层架构的.net源码三层架构的.net源码」· CS 代码 · 共 171 行

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace MyStarterKit.Portal.Web
{
	/// <summary>
	/// EditAnnouncements 的摘要说明。
	/// </summary>
	public class EditAnnouncements : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox TitleField;
		protected System.Web.UI.WebControls.RequiredFieldValidator Req1;
		protected System.Web.UI.WebControls.TextBox MoreLinkField;
		protected System.Web.UI.WebControls.TextBox MobileMoreField;
		protected System.Web.UI.WebControls.TextBox DescriptionField;
		protected System.Web.UI.WebControls.RequiredFieldValidator Req2;
		protected System.Web.UI.WebControls.LinkButton updateButton;
		protected System.Web.UI.WebControls.LinkButton cancelButton;
		protected System.Web.UI.WebControls.LinkButton deleteButton;
		protected System.Web.UI.WebControls.Label CreatedBy;
		protected System.Web.UI.WebControls.Label CreatedDate;
		protected WebControlLibrary.InputCalendar ExpireField;
	
		int itemId = 0;
		int moduleId = 0;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 所属模块Id
			moduleId = Int32.Parse(Request.Params["Mid"]);

			// 验证用户是否可以修改指定模块
			if (PortalSecurity.HasEditPermissions(moduleId) == false) 
			{
				Response.Redirect("~/Admin/EditAccessDenied.aspx");
			}

			// 项Id
			if (Request.Params["ItemId"] != null) 
			{
				itemId = Int32.Parse(Request.Params["ItemId"]);
			}

			if (Page.IsPostBack == false) 
			{

				if (itemId != 0) 
				{

					// 获取指定itemId的公告内容
					AnnouncementsDB announcementDB = new AnnouncementsDB();
					SqlDataReader dr = announcementDB.GetSingleAnnouncement(itemId);
                
					dr.Read();
					int dbModuleID = Convert.ToInt32(dr["ModuleID"]);
					if (dbModuleID != moduleId)
					{
						dr.Close();
						Response.Redirect("~/Admin/EditAccessDenied.aspx");
					}
					TitleField.Text = (String) dr["Title"];
					MoreLinkField.Text = (String) dr["MoreLink"];
					MobileMoreField.Text = (String) dr["MobileMoreLink"];
					DescriptionField.Text = (String) dr["Description"];
					ExpireField.Text = ((DateTime) dr["ExpireDate"]).ToShortDateString();
					CreatedBy.Text = (String) dr["CreatedByUser"];
					CreatedDate.Text = ((DateTime) dr["CreatedDate"]).ToShortDateString();
					dr.Close();
				}
				else
				{
					//默认有效期为一个星期
					ExpireField.Text = DateTime.Today.AddDays(7).ToString("yyyy-MM-dd");
				}
				// 存储上次请求页Url
				ViewState["UrlReferrer"] = Request.UrlReferrer.ToString();
			}
		}

		/// <summary>
		/// 更新
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void UpdateBtn_Click(Object sender, EventArgs e) 
		{

			// 通过验证
			if (Page.IsValid == true) 
			{
				// 创建公告数据访问层对象
				AnnouncementsDB announcementDB = new AnnouncementsDB();

				if (itemId == 0) 
				{
					// itemId时为新增
					announcementDB.AddAnnouncement( moduleId, itemId, Context.User.Identity.Name, TitleField.Text, DateTime.Parse(ExpireField.Text), DescriptionField.Text, MoreLinkField.Text, MobileMoreField.Text);
				}
				else 
				{
					// 更新指定公告
					announcementDB.UpdateAnnouncement( moduleId, itemId, Context.User.Identity.Name, TitleField.Text, DateTime.Parse(ExpireField.Text), DescriptionField.Text, MoreLinkField.Text, MobileMoreField.Text);
				}

				// 返回上次请求页
				Response.Redirect((String) ViewState["UrlReferrer"]);
			}
		}

		/// <summary>
		/// 删除
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void DeleteBtn_Click(Object sender, EventArgs e) 
		{
			if (itemId != 0) 
			{
				AnnouncementsDB announcementDB = new AnnouncementsDB();
				announcementDB.DeleteAnnouncement(itemId);
			}

			// 返回上次请求页
			Response.Redirect((String) ViewState["UrlReferrer"]);
		}

		/// <summary>
		/// 取消
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void CancelBtn_Click(Object sender, EventArgs e) 
		{
			// 返回上次请求页
			Response.Redirect((String) ViewState["UrlReferrer"]);
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.updateButton.Click += new System.EventHandler(this.UpdateBtn_Click);
			this.cancelButton.Click += new System.EventHandler(this.CancelBtn_Click);
			this.deleteButton.Click += new System.EventHandler(this.DeleteBtn_Click);
			this.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
	}
}