message.aspx.cs

通过asp.net实现普通的聊天工具 内容比较简单

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 liaotian
{
	/// <summary>
	/// message 的摘要说明。
	/// </summary>
	public class message : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button btnSend;
		protected System.Web.UI.WebControls.TextBox txtContent;
		protected System.Web.UI.WebControls.DropDownList ddlUserList;
		protected System.Web.UI.WebControls.RadioButtonList rblFace;
		protected System.Web.UI.WebControls.DropDownList PicList;
		protected System.Web.UI.WebControls.CheckBox ckbPrivate;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!this.IsPostBack)
			{
				ddlUserList.Items.Add("所有人");
				ArrayList al = Application["userList"] as ArrayList;
				string name = Session["userName"] as string;
				foreach(string str in al)
				{
					if(!str.Equals(name))
					{
						ddlUserList.Items.Add(str);
					}
				}
				
				if(ddlUserList.SelectedItem.Text.Equals("全部人"))
				{
					ckbPrivate.Enabled = false;
				}
				else
				{
					ckbPrivate.Enabled = true;
				}
//				this.PicList_Init();
			}
			
			
		}

		#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.ddlUserList.SelectedIndexChanged += new System.EventHandler(this.ddlUserList_SelectIndexChanged);
			this.btnSend.Click += new System.EventHandler(this.btnSend_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnSend_Click(object sender, System.EventArgs e)
		{
			Message msg = new Message();
			msg.Who = Session["userName"] as string;
			msg.ToWho = ddlUserList.SelectedItem.Text;
			msg.Face = rblFace.SelectedIndex;
			msg.Flag = ckbPrivate.Checked;
			msg.Say = txtContent.Text;

			ArrayList al = Application["display"] as ArrayList;
			al.Add(msg);			
		}

		private void ddlUserList_SelectIndexChanged(object sender,System.EventArgs e)
		{
			if(ddlUserList.SelectedValue.Equals("全部人"))
			{
				ckbPrivate.Enabled = false;
			}
			else
			{
				ckbPrivate.Enabled = true;
			}
		}
	

		private void PicList_Init()// FillPicList 填充图片列表框
		{
			this.PicList.Items.Clear();
			string  FileName,ImgDir;
			System.IO.FileInfo Fi;
			ImgDir="Image\\";
			System.IO.DirectoryInfo Dir=new System.IO.DirectoryInfo(Server.MapPath("Image\\"));
			foreach (System.IO.FileSystemInfo Fsi in Dir.GetFileSystemInfos())
			{
				if (Fsi is System.IO.FileInfo)
				{
					Fi=(System.IO.FileInfo) Fsi;
					FileName = Fi.Name;
					if (((Fi.Extension==".gif")||(Fi.Extension==".jpg"))&& (Fi.Name!="admin.gif"))
						this.PicList.Items.Add(new ListItem(FileName, ImgDir+FileName));

				}
				this.PicList.SelectedIndex=0;
//				this.face.Src=this.PicList.SelectedValue;
			} //end of foreach 
		}

		

		
	}

}