shownews.aspx.cs

ASP.NET 2.0动态网站设计实例源代码,本书介绍了ASP.NET2.0的基础知识

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class Admin_ShowNews : Admin_adminBase
{

 protected void Page_Load(object sender, EventArgs e)
 {
  if (!IsPostBack)
   BindNewsData();
 }
 /// <summary>
 /// 根据ID获取新闻内容
 /// </summary>
 private void BindNewsData()
 {
  object oNewsID = Request.Params["newsid"];
  string strScriptBlock = null;
  if (oNewsID == null)
  {
   strScriptBlock = @"alert('请选择要审核的新闻！');window.navigate('default.aspx');";
   ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "NoID", 
    strScriptBlock, true);
   return;
  }
  eNews en = new eNews();
  int intNewsID = Convert.ToInt32(oNewsID);
  if (!en.IsNewsIDExist(intNewsID))
  {
   strScriptBlock = @"alert('这个ID的新闻不存在！');window.navigate('default.aspx');";
   ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "WrongID", 
    strScriptBlock, true);
   return;
  }
  en.GetNewsInfo(intNewsID);
  lblContent.Text = en.NewsContent;
  lblTitle.Text = en.NewsTitle;
  if (en.NewsImage)
   hlkImage.NavigateUrl = @"~/newsimage/" + en.NewsImageURL;
  else
   hlkImage.Text = "没有上传图片！";
  if (en.NewsChecked)
   btnConfirm.Enabled = false;
 }

 protected void btnConfirm_Click(object sender, EventArgs e)
 {
  //确保用户在途中没有乱修改新闻ID
  object oNewsID = Request.Params["newsid"];

  string strScriptBlock = null;
  if (oNewsID == null)
  {
   strScriptBlock = @"alert('请选择要审核的新闻！');window.navigate('default.aspx');";
   ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "NoID", 
    strScriptBlock, true);
   return;
  }
  eNews en = new eNews();
  int intNewsID = Convert.ToInt32(oNewsID);
  if (!en.IsNewsIDExist(intNewsID))
  {
   strScriptBlock = @"alert('这个ID的新闻不存在！');window.navigate('default.aspx');";
   ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "WrongID", 
    strScriptBlock, true);
   return;
  }
  //审核新闻
  en.NewsID = Convert.ToInt32(oNewsID);
  en.GetNewsInfo(en.NewsID);

  en.NewsChecked = true;
  en.NewsCheckUserID = ((eNewsUser)Session["User"]).NewsUserID;
  en.NewsHomeNews = Convert.ToBoolean(rblstShowAtHome.SelectedValue);

  en.NewsItemID = Convert.ToInt32(ddlstItem.SelectedValue);
  en.NewsKeyword = tbxKeyword.Text;
  en.NewsRecommend = Convert.ToBoolean(rblstRecommend.SelectedValue);
 
  en.SetNewsChecked(ddlstTemplate.SelectedValue);
  string strSuccessScript = null;
  strSuccessScript = @"alert('新闻已审核！');window.navigate('CheckNews.aspx');";
  ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "CheckSuccess", 
   strSuccessScript, true);
 }
 protected void btnDelete_Click(object sender, EventArgs e)
 {
  //确保用户在途中没有乱修改新闻ID
  object oNewsID = Request.Params["newsid"];

  string strScriptBlock = null;
  if (oNewsID == null)
  {
   strScriptBlock = @"alert('请选择要审核的新闻！');window.navigate('default.aspx');";
   ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "NoID", 
    strScriptBlock, true);
   return;
  }
  eNews en = new eNews();
  int intNewsID = Convert.ToInt32(oNewsID);
  if (!en.IsNewsIDExist(intNewsID))
  {
   strScriptBlock = @"alert('这个ID的新闻不存在！');window.navigate('default.aspx');";
   ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "WrongID", 
    strScriptBlock, true);
   return;
  }
  //删除新闻
  en.DeleteNewsByID(intNewsID);
  strScriptBlock = @"alert('该新闻已删除！');window.navigate('CheckNews.aspx');";
  ClientScript.RegisterClientScriptBlock(this.GetType(), this.UniqueID + "DeleteSuccess", 
   strScriptBlock, true);
  return;
 }
}