post.aspx.cs

这是我制作的一个小论坛源码··能够简单实现发表帖子··管理帖子·后台管理等功能

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;

namespace bbs
{
	/// <summary>
	/// post 的摘要说明。
	/// </summary>
	public class post : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button Button_send;
		protected System.Web.UI.WebControls.Label Label_UN;
		protected System.Web.UI.WebControls.Literal Literal_UserName;
		protected System.Web.UI.WebControls.TextBox TextBox_title;
		protected System.Web.UI.WebControls.TextBox TextBox_Content;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.Button Button_Clear;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面

				this.Literal_UserName.Text=Session["username"].ToString();				
				if(Session["username"]==null || Session["username"].ToString()=="")
				{
					Response.Redirect("error.aspx");
				}
				

		}

		#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.Button_send.Click += new System.EventHandler(this.Button_send_Click);
			this.Button_Clear.Click += new System.EventHandler(this.Button_Clear_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button_send_Click(object sender, System.EventArgs e)
		{
			if (this.TextBox_title.Text=="")
			{
				Response.Write("<script>alert('***主题不能为空！')</script>");
			}
			else if (this.TextBox_Content.Text=="")
			{
				Response.Write("<script>alert('***发表的内容不能为空！')</script>");
			}
			else if(this.TextBox_title.Text.Length>100)
			{
				Response.Write("<script>alert('***对不起，你输入的主题过长！')</script>");
			}
			
			else if(this.TextBox_Content.Text.Length<6)
			{
				Response.Write("<script>alert('***对不起,字数不能少于6!')</script>");
			}
				 else
			{
				string title;
				if(this.DropDownList1.SelectedValue.ToString()=="[选择话题]")
				{
					title=this.TextBox_title.Text;
				}
				else
				{
					title=this.DropDownList1.SelectedItem.Text+this.TextBox_title.Text;
				}
				string userid=Session["userid"].ToString();
				string sql="insert into tbBbs (sBbsHead,sBbsContent,dBbsDate,iUserID_FK) values('"+title+"','"+this.TextBox_Content.Text+"','"+DateTime.Now+"','"+userid+"')";
				da.da d=new da.da();
				d.command(sql);
				string sql2="update users set iBbscount=iBbscount+1 where iUserID='"+userid+"'";
				da.da q=new da.da();
				q.command(sql2);
				Response.Redirect("index.aspx");
			}
		}

		private void Button_Clear_Click(object sender, System.EventArgs e)
		{
			this.TextBox_Content.Text=null;
		}

	}
}