addpicture.aspx.cs

一个不错的asp.net网站

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 MisPersonnel.Components;
using System.Data.SqlClient;
using System.IO;

namespace MisPersonnel.DesktopModules.Picture
{
	/// <summary>
	/// AddPicture 的摘要说明。
	/// </summary>
	public class AddPicture : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label lblLReceiver;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfN;
		protected System.Web.UI.WebControls.Label lblAdditionalNo;
		protected System.Web.UI.WebControls.TextBox PicDesn;
		protected System.Web.UI.WebControls.Button AddBtn;
		protected System.Web.UI.HtmlControls.HtmlInputFile UploadPicture;
		protected System.Web.UI.WebControls.Button ReturnBtn;
	
		private int nEmployeeID = -1;

		private void Page_Load(object sender, System.EventArgs e)
		{
			///判断用户是否登陆
			if(Session["UserID"] == null)
			{
				Response.Redirect("~/Default.aspx");
			}
			///判断用户是否是超级管理员
			if(Components.User.IsAuthorityAdmin(Session["UserID"].ToString()) >= Components.User.USERTYPENORMAL)
			{
				Response.Write("<script>alert(\"你没有权限，请与管理员联系！\")</script>");
				Response.Write("<script>history.back();</script>");
			}			
			if(Request.Params["EmployeeID"] != null)
			{
				nEmployeeID = Int32.Parse(Request.Params["EmployeeID"].ToString());
			}

			///设置按钮的可用性
			AddBtn.Enabled = (nEmployeeID <= -1) ? false : true;
		}

		#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.AddBtn.Click += new System.EventHandler(this.AddBtn_Click);
			this.ReturnBtn.Click += new System.EventHandler(this.ReturnBtn_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ReturnBtn_Click(object sender, System.EventArgs e)
		{
			///跳转到管理页面
			Response.Redirect("~/DesktopModules/Picture/PictureManage.aspx?EmployeeID=" + nEmployeeID);
		}

		private void AddBtn_Click(object sender, System.EventArgs e)
		{
			if(Page.IsValid == true)
			{
				if(UploadPicture.PostedFile.ContentLength > 0)
				{
					//定义图片的IO流
					Stream pictureStream = UploadPicture.PostedFile.InputStream;

					//保存图片的数据
					byte[] pictureData = new byte[UploadPicture.PostedFile.ContentLength];

					///定义类
					MisPersonnel.Components.Picture picture = new MisPersonnel.Components.Picture();
					MisPersonnel.Components.Employee employ = new MisPersonnel.Components.Employee();
					try
					{
						//读取图片的内容
						pictureStream.Read(pictureData,0,UploadPicture.PostedFile.ContentLength);

						///添加操作
						int nPictureID = picture.AddPicture(PicDesn.Text.Trim(),pictureData,UploadPicture.PostedFile.ContentType);
						if(nPictureID > 0)
						{
							employ.UpdateEmployPicture(nEmployeeID,nPictureID);
						}
					
						///显示操作结果信息
						Response.Write ("<script>window.alert('" + MisSystem.OPERATIONADDSUCCESSMESSAGE + "')</script>");
					}
					catch(Exception ex)
					{			
						///显示添加操作中的失败、错误信息
						Response.Redirect("~/DesktopModules/ErrorPage.aspx?ErrorUrl="
							+ MisSystem.RedirectErrorUrl(Request.RawUrl)
							+ "&ErrorMessage=" + ex.Message.Replace("\n"," "));
					}
				}
				else
				{
					///显示操作结果信息
					Response.Write ("<script>window.alert('" + MisSystem.OPERATIONDATANULL + "')</script>");
				}	
			}
		}
	}
}