admin_addnews.aspx.cs

一个出售宠物的网站,比较全面

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.IO;
namespace hellopet
{
	/// <summary>
	/// admin_Addnews 的摘要说明。
	/// </summary>
	public class admin_Addnews : System.Web.UI.Page
	{
	    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
	    protected System.Web.UI.WebControls.Button Button1;
	    protected System.Web.UI.WebControls.HyperLink HyperLink1;
	    protected System.Web.UI.HtmlControls.HtmlTextArea content;
	    protected System.Web.UI.HtmlControls.HtmlInputFile File1;
	    protected System.Web.UI.WebControls.TextBox topic;
	    protected System.Web.UI.WebControls.DropDownList leibie;
	    protected System.Web.UI.HtmlControls.HtmlInputFile upImage;
	    protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (Session["admin"]==null)
			    Response.Redirect("admin_Login.aspx");// 在此处放置用户代码以初始化页面
		}
	    

		#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.Button1.Click += new System.EventHandler(this.Button1_Click);
		    this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

	    private void Button1_Click(object sender, System.EventArgs e)
	    {
		Admins admin=new Admins();
		//System.Drawing.Image image,newimage;
		//图片路径
		string imagePath;
		//图片类型
		string imageType;
		//图片名称
		string imageName;
		string mPath;
		//建立虚拟路径
		mPath=Server.MapPath("upFile");
		//取得图片路径
		imagePath= upImage.PostedFile.FileName;
		//取得图片类型
		imageType= imagePath.Substring(imagePath.LastIndexOf(".")+1);
		//取得图片名称
		imageName = imagePath.Substring(imagePath.LastIndexOf("\\")+1);
		
		if("" != upImage.PostedFile.FileName)
		{
		    //判断是否是JPG或者GIF图片,这里只是举个例子,并不一定必须是这两种图片
		    if("jpg" != imageType && "gif" != imageType)
		    {
			Response.Write("<script language='javascript'> alert('对不起！请您选择jpg或者gif格式的图片！');</script>");
			return;
		    }
		    if(File.Exists(mPath+"\\"+imageName))
		    {
			imageName="1"+imageName;
		    }
		}
		if(admin.Query_details(topic.Text).Read())
		{
		    Response.Write("<script language='javascript'> alert('新闻标题重复，请重新输入');</script>");
		    topic.Text="";
		}
		else
		{	
		    //保存到虚拟路径
		    upImage.PostedFile.SaveAs(mPath+"\\"+imageName);
		    admin.AddNews(topic.Text,leibie.SelectedValue,content.Value,System.DateTime.Now,imageName);
		    Response.Write("<script language=javascript>alert('添加成功')</script>");
		    Response.Redirect("admin_Viewnews.aspx");
		}
	   }
	}
	   
  }