newsedit.aspx.cs

面向.net的WEB应用程序设计-----C#语言

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 NewsKindAdmin.Operate_DB;

namespace NewsKindAdmin.Admin
{
	/// <summary>
	/// NewsEdit 的摘要说明。
	/// </summary>
	public class NewsEdit : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox txtNewsTitle;
		protected System.Web.UI.WebControls.TextBox txtNewsContent;
		protected System.Web.UI.WebControls.Button btnNewsSave;
		protected System.Web.UI.WebControls.Button btnback;
		protected System.Web.UI.WebControls.Label Label1;
		private static string NewsID="";
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!Page.IsPostBack)
			{
				if(this.Request.QueryString["newsid"]!=null)
				{
					NewsID=this.Request.QueryString["newsid"].ToString();
					this.NewsEditDataBind(Int32.Parse(NewsID));
				}
			}
		}
		private void NewsEditDataBind(int newsid)
		{
			News news=new News();
			DataRow row=news.GetNewsEditDataByNId(newsid);
			if(row!=null)
			{
				this.txtNewsTitle.Text=row["NewsTitle"].ToString();
				this.txtNewsContent.Text=row["NewsContent"].ToString();
			}
		}

		#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.btnNewsSave.Click += new System.EventHandler(this.btnNewsSave_Click);
			this.btnback.Click += new System.EventHandler(this.btnback_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnNewsSave_Click(object sender, System.EventArgs e)
		{
			News news=new News();
			if(news.UpdateEditNewsData(Int32.Parse(NewsID),this.txtNewsTitle.Text,this.txtNewsContent.Text))
			{
				this.Response.Redirect("NewsAdmin.aspx");
			}
			else
			{
				this.Response.Write("<script>alert('您所要更新的新闻保存失败！')</script>");
			}
		}

		private void btnback_Click(object sender, System.EventArgs e)
		{
			this.Response.Redirect("NewsAdmin.aspx");
		}
	}
}