writemessage.aspx.cs

留言板得源代码 是初学网络的较好代码

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;

namespace Aspnet
{
	/// <summary>
	/// WriteMessage 的摘要说明。
	/// </summary>
	public class WriteMessage : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Panel Panel1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RFV_UserName;
		protected System.Web.UI.WebControls.TextBox TB_Email;
		protected System.Web.UI.WebControls.TextBox TB_Subject;
		protected System.Web.UI.WebControls.TextBox TB_Message;
		protected System.Web.UI.WebControls.Button BT_Send;
		protected System.Web.UI.WebControls.Button BT_Reset;
		protected System.Web.UI.WebControls.Label lblMessage;
		protected System.Web.UI.WebControls.ValidationSummary ValSum;
		protected System.Web.UI.WebControls.Panel Panel2;
		protected System.Web.UI.WebControls.HyperLink HyperLink2;
		protected System.Web.UI.WebControls.HyperLink HyperLink1;
		protected System.Web.UI.WebControls.TextBox TB_UserName;
		protected System.Web.UI.WebControls.RegularExpressionValidator REV_Email;
		protected System.Web.UI.WebControls.RequiredFieldValidator RFV_Message;
		protected System.Web.UI.WebControls.Panel Panel3;
	
		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.BT_Send.Click += new System.EventHandler(this.BT_Send_Click);
			this.BT_Reset.Click += new System.EventHandler(this.BT_Reset_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void BT_Send_Click(object sender, System.EventArgs e)
		{
			try
			{
				if(TB_UserName.Text.ToString()==Session["username"].ToString())
				{
					//连接数据库
					string strconn="server=localhost;database=Aspnet;uid=sj;pwd=;";
					SqlConnection Conn=new SqlConnection(strconn);
					Conn.Open();
					string username,subject,regtime,message;
					username=TB_UserName.Text.ToString();				
					subject=TB_Subject.Text.ToString();					
					regtime=System.DateTime.Now.ToString();
					message=TB_Message.Text.ToString();
					string addsql="insert Newpost (ParentID,UserName,Subject,RegTime,Message) values (0,'"+username+"','"+subject+"','"+regtime+"','"+message+"')";
					SqlCommand addcommand=new SqlCommand(addsql,Conn);
					addcommand.ExecuteNonQuery();
					Conn.Close();
					lblMessage.Text="留言成功，谢谢留言！";
				}
				else
				{
					lblMessage.Text="您输入的用户名错误！！请检查。";
				}
			}
			catch
			{//捕捉异常
				lblMessage.Text="错误：发送信息失败，请检查输入是否正确。";
			}
		}

		private void BT_Reset_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("WriteMessage.aspx");
		}
	}
}