viewmsg.aspx.cs

ASP C#代码实例 适合初学人士学习使用

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

namespace OfficeAuto.DesktopModules.MessageManage
{
	/// <summary>
	/// ViewMsg 的摘要说明。
	/// </summary>
	public class ViewMsg : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid MsgList;
		protected System.Web.UI.WebControls.Button Read;
		protected System.Web.UI.WebControls.Button Delete;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			///判断用户是否登录，否则跳转到登录页面
			if(Session["UserID"] == null)
			{
				Response.Redirect("~/Default.aspx");
			}

			if(!Page.IsPostBack)
			{
				BindMsgData(Int32.Parse(Session["UserID"].ToString()));
			}
		}

		public void BindMsgData(int nUserID)
		{
			Message msg = new Message();
			SqlDataReader recm = msg.GetMessageByUser(nUserID);
			DataTable dt = SystemTools.ConvertDataReaderToDataTable(recm);

			DataSet ds = new DataSet();
			ds.Tables.Add(dt);

			MsgList.DataSource = ds;
			MsgList.DataBind();
		}

		#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.MsgList.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.MsgList_PageIndexChanged);
			this.Read.Click += new System.EventHandler(this.Read_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void MsgList_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			MsgList.CurrentPageIndex = e.NewPageIndex;

			///重新绑定短信列表的数据
			BindMsgData(Int32.Parse(Session["UserID"].ToString()));
		}

		private void Read_Click(object sender, System.EventArgs e)
		{
			Message msg = new Message();
			foreach(DataGridItem item in MsgList.Items)
			{
				CheckBox cBox = (CheckBox)item.FindControl("MsgID");
				if(cBox != null)
				{
					if(cBox.Checked == true)
					{
						msg.UpdateMsgRead(Int32.Parse(MsgList.DataKeys[item.ItemIndex].ToString()));
					}
				}
			}

			///重新绑定短信列表的数据
			BindMsgData(Int32.Parse(Session["UserID"].ToString()));
		}
	}
}