控件操作类文件的部分手写代码

来源：互联网发布：js decodeuri 编辑：程序博客网时间：2024/04/27 11:52

using System;
using System.Web.Security;
using System.Text;
using System.IO;
using System.Security.Cryptography;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using System.Web.Mail;
using System.Configuration;

using System.ComponentModel;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI.HtmlControls;
namespace MY
{
/// <summary>
/// UserClass 的摘要说明。
/// </summary>
public class UserClass:System.Web.UI.Page
{
private string[] userdata;
private string[] managerdata;

  private string strOutPicName;
  private DbControl db;
  protected Page page = null;
  //private Hashtable ht;

  public UserClass()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //

  }
  public UserClass(Page page)
  {
   db = new DbControl();
   this.page = page;
   strOutPicName = "";
  }
  #region 加密方法
  /// <summary>
  /// 加密
  /// </summary>
  /// <param name="pToEncrypt"></param>
  /// <returns></returns>
  public string Encrypt(string pToEncrypt)
  {
   string sKey="1234abcd";
   DESCryptoServiceProvider des = new DESCryptoServiceProvider();
   //把字符串放到byte数组中
   //原来使用的UTF8编码，我改成Unicode编码了，不行
   byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
   //byte[] inputByteArray=Encoding.Unicode.GetBytes(pToEncrypt);

   //建立加密对象的密钥和偏移量
   //原文使用ASCIIEncoding.ASCII方法的GetBytes方法
   //使得输入密码必须输入英文文本
   des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
   des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
   MemoryStream ms = new MemoryStream();
   CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(),CryptoStreamMode.Write);
   //Write the byte array into the crypto stream
   //(It will end up in the memory stream)
   cs.Write(inputByteArray, 0, inputByteArray.Length);
   cs.FlushFinalBlock();
   //Get the data back from the memory stream, and into a string
   StringBuilder ret = new StringBuilder();
   foreach(byte b in ms.ToArray())
   {
    //Format as hex
    ret.AppendFormat("{0:X2}", b);
   }
   ret.ToString();
   return ret.ToString();
  }
  public    string Decrypt(string pToDecrypt)
  {
   string sKey="1234abcd";
   DESCryptoServiceProvider des = new DESCryptoServiceProvider();

   //Put the input string into the byte array
   byte[] inputByteArray = new byte[pToDecrypt.Length / 2];
   for(int x = 0; x < pToDecrypt.Length / 2; x++)
   {
    int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16));
    inputByteArray[x] = (byte)i;
   }

   //建立加密对象的密钥和偏移量，此值重要，不能修改
   des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
   des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
   MemoryStream ms = new MemoryStream();
   CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(),CryptoStreamMode.Write);
   //Flush the data through the crypto stream into the memory stream
   cs.Write(inputByteArray, 0, inputByteArray.Length);
   cs.FlushFinalBlock();

   //Get the decrypted data back from the memory stream
   //建立StringBuild对象，CreateDecrypt使用的是流对象，必须把解密后的文本变成流对象
   StringBuilder ret = new StringBuilder();

   return System.Text.Encoding.Default.GetString(ms.ToArray());
  }
  #endregion
  #region 处理字段落字符串
  /// <summary>
  /// 处理字段落字符串
  /// </summary>
  /// <param name="notes"></param>
  /// <returns></returns>
  public string Ctrltxt(string notes)
  {
   StringBuilder outstr=new StringBuilder(notes);
   outstr.Replace("/n","<br>");
   outstr.Replace(" ","   ");
   return outstr.ToString();
  }
  #endregion

  #region 手动方法
  /// <summary>
  /// 从数据库里读取已经选择的DR
  /// </summary>
  /// <param name="lb"></param>
  /// <param name="strshow"></param>
  /// <param name="intFlag"></param>
  public void ShowDropDownList(DropDownList lb,string strshow,int intFlag)
  {
   foreach(ListItem objitem in lb.Items)
   {
    if (intFlag==0 && objitem.Text==strshow)
    {
     objitem.Selected=true;
    }
    else if (intFlag==1 && objitem.Value==strshow)
    {
     objitem.Selected=true;
    }
    else
    {
     objitem.Selected=false;
    }
   }
  }
  /// <summary>
  /// 把数据里的值读到DL里面。
  /// </summary>
  /// <param name="dl"></param>
  /// <param name="dr"></param>
  /// <param name="strtext"></param>
  /// <param name="strvalue"></param>
  public void ShowDrData(DropDownList dl,SqlDataReader dr,string strtext,string strvalue)
  {
   dl.DataSource=dr;
   dl.DataTextField=strtext;
   dl.DataValueField=strvalue;
   dl.DataBind();
  }
  /// <summary>
  /// 把数据里的值读到DL里面并且选择某一项为选中，重载上面的！
  /// </summary>
  /// <param name="dl"></param>
  /// <param name="dr"></param>
  /// <param name="strtext"></param>
  /// <param name="strvalue"></param>
  /// <param name="sltvalue"></param>
  public void ShowDrData(DropDownList dl,SqlDataReader dr ,string strtext,string strvalue,string sltvalue)
  {
   dl.DataSource=dr;
   dl.DataTextField=strtext;
   dl.DataValueField=strvalue;
   dl.DataBind();
   dl.Items.Add(sltvalue);
   foreach(ListItem objitem in dl.Items)
   {
    if (objitem.Text==sltvalue)
    {
     objitem.Selected=true;
    }
    else
    {
     objitem.Selected=false;
    }
   }
  }
  /// <summary>
  /// 重载上面的函数将Reader参数换成Array
  /// </summary>
  /// <param name="dl"></param>
  /// <param name="al"></param>
  public void ShowDrData(DropDownList dl,ArrayList al)
  {
   dl.DataSource=al;
   //dl.DataTextField=strtext;
   //dl.DataValueField=strvalue;
   dl.DataBind();
  }
  /// <summary>
  /// 把数据库里的数据读到LB里面去.
  /// </summary>
  /// <param name="lb"></param>
  /// <param name="dr"></param>
  /// <param name="strtext"></param>
  /// <param name="strvalue"></param>
  public void ShowDrData(ListBox lb,SqlDataReader dr,string strtext,string strvalue)
  {
   lb.DataSource=dr;
   lb.DataTextField=strtext;
   lb.DataValueField=strvalue;
   lb.DataBind();
  }
  /// <summary>
  /// 将数据读到Array数组//
  /// </summary>
  /// <param name="dr"></param>
  /// <param name="strslt"></param>
  /// <param name="strfield"></param>
  /// <returns></returns>
  public ArrayList ReturnArray(SqlDataReader dr,string strslt,string strfield)
  {
   ArrayList objarr;
   objarr=new ArrayList();
   if (dr.HasRows)
   {
    while (dr.Read())
    {
     objarr.Add(dr[strfield].ToString());
    }
    dr.Close();
   }
   objarr.Insert(0,strslt);
   return objarr;
  }
  public void Close()
  {
   db.Close();
   userdata=null;
  }
  /// <summary>
  /// 读取Check组的值;
  /// </summary>
  /// <param name="lb"></param>
  /// <returns></returns>
  public string ReadCheckBoxList(CheckBoxList lb)
  {
   string returnvalue="0";
   for (int i=0; i<lb.Items.Count; i++)
   {
    if (lb.Items[i].Selected)
     returnvalue=returnvalue +","+ lb.Items[i].Value;
   }
   return returnvalue;
  }
  /// <summary>
  /// 显示Check组的值
  /// </summary>
  /// <param name="cbl"></param>
  /// <param name="strCheckValue"></param>
  public void ShowCheckBoxList(CheckBoxList cbl,string strCheckValue)
  {
   for (int i=0;i<cbl.Items.Count;i++)
   {
    if (strCheckValue.IndexOf(cbl.Items[i].Value)>0)
    {
        cbl.Items[i].Selected=true;
    }
   }
  }
  /// <summary>
  /// DateDiff功能实现函数
  /// </summary>
  /// <param name="howtocompare"></param>
  /// <param name="startDate"></param>
  /// <param name="endDate"></param>
  /// <returns></returns>
  public double DateDiff(string howtocompare, System.DateTime startDate, System.DateTime endDate)
  {
   double diff=0;
   System.TimeSpan TS = new System.TimeSpan(startDate.Ticks-endDate.Ticks);
   switch (howtocompare.ToLower())
   {
    case "m":
     diff = Convert.ToDouble(TS.TotalMinutes);
     break;
    case "s":
     diff = Convert.ToDouble(TS.TotalSeconds);
     break;
    case "t":
     diff = Convert.ToDouble(TS.Ticks);
     break;
    case "mm":
     diff = Convert.ToDouble(TS.TotalMilliseconds);
     break;
    case "yyyy":
     diff = Convert.ToDouble(TS.TotalDays/365);
     break;
    case "q":
     diff = Convert.ToDouble((TS.TotalDays/365)/4);
     break;
    default:
     //d
     diff = Convert.ToDouble(TS.TotalDays);
     break;
   }
   return diff;
  }
  /// <summary>
  /// 以送Email过程.
  /// </summary>
  /// <param name="strMailTo"></param>
  /// <param name="strMailSubject"></param>
  /// <param name="strMailBody"></param>
  /// <returns></returns>
  public bool sendMail(string strMailTo,string strMailSubject,string strMailBody )
  {
   try
   {

    string MailSmtp=ConfigurationSettings.AppSettings["MailSmtp"];
    string MailUser=ConfigurationSettings.AppSettings["MailUser"];
    string MailPassword=ConfigurationSettings.AppSettings["MailPassword"];
    string MailFrom=ConfigurationSettings.AppSettings["MailFrom"];
    MailMessage mailMessage = new MailMessage();
    mailMessage.To = "zxqd2008@163.com";
    mailMessage.From = MailFrom;
    mailMessage.Subject = strMailSubject;
    mailMessage.Body = strMailBody;
    mailMessage.BodyFormat = MailFormat.Html;//邮件的格式

    //如果带有附件...如：attachFile =''C:/file.rar''
    //if (attachFile != "")
    //{
     //mailMessage.Attachments.Add(new MailAttachment(attachFile));
    //}

    //以下三句用在SMTP需要身份验证时。Framework1.1才有支持。
    mailMessage.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");//基本验证
    mailMessage.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", MailUser); //设定用户名
    mailMessage.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", MailPassword);//设定密码

    SmtpMail.SmtpServer = MailSmtp;//设定SMTP服务器
    SmtpMail.Send(mailMessage);
    return true;
   }
   catch
   {
    //邮件发送失败处理
    return false;
    //throw ex;

   }

  }
  //============================================================
  /// <summary>
  /// 将一特定的值绑定到Panel中的CheckBox里（根据CheckBox里的Value值判断此项是否选中）
  /// </summary>
  /// <param name="strValue"></param>
  /// <param name="objPanel"></param>
  public void showPanelCheckBox(string strValue,Panel objPanel)
  {
   for (int i=0;i<=objPanel.Controls.Count-1;i++)
   {
    if (objPanel.Controls[i] is CheckBox)
    {
     //if (this.Panel1.Controls[i])
     CheckBox cb=(CheckBox)objPanel.Controls[i];
     if (strValue.IndexOf(cb.ID.Substring(1,cb.ID.Length-1))>0)
     {
      cb.Checked=true;
     }
     else
     {
      cb.Checked=false;
     }
    }
   }
  }

  //============================================================
  //上传图片时取得图片的名字
  /// <summary>
  /// 缺点多等待处理
  /// </summary>
  /// <param name="uploadPic"></param>
  /// <param name="strFileSavePath"></param>
  /// <returns></returns>
  public bool outPutPicName(System.Web.UI.HtmlControls.HtmlInputFile uploadPic,string strFileSavePath)
  {
   //string strPicName = uploadPic.Value.Length.ToString();
   strOutPicName = "";
   SqlDataReader sdr = db.SqlGetReader("Select * From Data_Counter Where isBy = '1'");
   sdr.Read();
   string picFileName = sdr["iSum"].ToString();
   sdr.Close();
   int piclen         = uploadPic.Value.Length;
   int picwei         = uploadPic.Value.LastIndexOf(".");
   string picname     = uploadPic.Value.Substring(picwei+1,piclen-picwei-1);
   picname            = picname.ToLower();
   if (picname!="jpg"&&picname!="jpeg"&&picname!="gif"&&picname!="bmp")
   {
    strOutPicName    = db.RetrunScript("what you uploaded can only be GIF , JPEG or JPG format...",2);
    return false;
   }
   else
   {
    strOutPicName = picFileName+"."+picname;
    //更新计数器执行sql语句
    return true;
   }

  }

  public string OutPicName
  {
   get
   {
    return strOutPicName;
   }
  }

  /// <summary>
  /// 选中有值的选项
  /// </summary>
  /// <param name="objrbl"></param>
  /// <param name="strValue"></param>
  public void ShowRadioList(RadioButtonList objrbl, string strValue)
  {
   for(int i = 0;i<=objrbl.Items.Count-1;i++)
   {
    if (strValue.IndexOf(objrbl.Items[i].Value)!=-1)
    {
     objrbl.Items[i].Selected = true;
    }
    else
    {
     objrbl.Items[i].Selected = false;
    }
   }
  }
  #endregion

  /// <summary>
  /// 图像缩小处理
  /// </summary>
  /// <param name="strBigImg">存储原图像路径及文件名</param>
  /// <param name="strSmallImg">存储缩小后图像路径及文件名</param>
  /// <param name="intW">存储图像缩小宽度</param>
  /// <param name="intH">存储图像缩小高度</param>
  /// <param name="objPage">当前页</param>
  /// <returns>缩小后图像路么及文件名</returns>
  public string imgControl(Page objPage,string strBigImg,string strSmallImg,int intW,int intH)
  {
   if (File.Exists(strSmallImg))
   {
    //检验图像是否已经缩小
    return strSmallImg;
   }
   else
   {
    //图像没有缩小时处理
    Bitmap oldImg;//原图对象
    Bitmap newImg;//新图对象
    try
    {
     oldImg = new Bitmap(objPage.MapPath(strBigImg));
     newImg = new Bitmap(oldImg,intW,intH);
     newImg.Save(objPage.MapPath(strSmallImg));
     oldImg.Dispose();
     newImg.Dispose();
     //strSmallImg = "系统默认出错图片的路径与名称";
    }
    catch
    {
    }
    finally
    {

     oldImg = null;
     newImg = null;
    }
    strSmallImg = strSmallImg.Trim();
    return strSmallImg;
   }

}

}
}