newsadd.aspx.cs

基于asp.net得新闻发布系统

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 System.Configuration;

namespace _11_4
{
	/// <summary>
	/// NewsAdd 的摘要说明。
	/// </summary>
	public class NewsAdd : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox tbxtitle;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.TextBox tbxcontent;
		protected System.Web.UI.WebControls.Button btnadd;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 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.btnadd.Click += new System.EventHandler(this.btnadd_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnadd_Click(object sender, System.EventArgs e)
		{
			string publisher = Session["username"].ToString();
			//Response.Write(publisher);
			//创建连接对象
			SqlConnection objconn = new SqlConnection(ConfigurationSettings.AppSettings["connstr"]);
            
			string getInsertID;
			getInsertID = "select Max(NewsID) from News";
			SqlCommand cmd0 = new SqlCommand(getInsertID, objconn);
			objconn.Open();
			SqlDataReader objdr  = cmd0.ExecuteReader();
			objdr.Read();
			int VarNewsID;
			if (objdr[0].ToString() == "")
			{
				VarNewsID = 1;
			}
			else
			{
				VarNewsID = Convert.ToInt32(objdr[0].ToString()) + 1;
			}
			cmd0.Connection.Close();
            
			//创建命令对象
			SqlCommand objcmd = new SqlCommand("NewsAdd", objconn);
			//设置命令类型
			objcmd.CommandType = CommandType.StoredProcedure;
			//添加参数
			//新闻编号
			SqlParameter paramNewsID = new SqlParameter("@NewsID", SqlDbType.Int);
			paramNewsID.Value = VarNewsID;
			objcmd.Parameters.Add(paramNewsID);
			//新闻标题
			SqlParameter paramNewsTitle = new SqlParameter("@NewsTitle", SqlDbType.NVarChar, 50);
			paramNewsTitle.Value = tbxtitle.Text;
			objcmd.Parameters.Add(paramNewsTitle);
			//新闻内容
			SqlParameter paramNewsContents = new SqlParameter("@NewsContents", SqlDbType.NVarChar, 500);
			paramNewsContents.Value = tbxcontent.Text;
			objcmd.Parameters.Add(paramNewsContents);
			//新闻发布者
			SqlParameter paramNewsPublisher = new SqlParameter("@NewsPublisher", SqlDbType.NVarChar, 20);
			paramNewsPublisher.Value = publisher;
			objcmd.Parameters.Add(paramNewsPublisher);
			//新闻发布时间
			SqlParameter paramNewsDatetime = new SqlParameter("@NewsDatetime", SqlDbType.DateTime);
			paramNewsDatetime.Value = DateTime.Now;
			objcmd.Parameters.Add(paramNewsDatetime);
			objcmd.Connection.Open();
			//执行命令
			objcmd.ExecuteNonQuery();
			//关闭数据库连接
			objconn.Close();
			Response.Redirect("News.aspx");
		}
	}
}