.net 资料

 EF SqlBulkCopy 批量入库

string connection=ConfigurationManager.ConnectionStrings["DbConn"].ConnectionString;

using System.Data.SqlClient;
using System.Data;
using System.ComponentModel;

public  static  void BulkInsert<T>( string connection,  string tableName, IList<T> list)
{
     using ( var bulkCopy =  new SqlBulkCopy(connection))
    {
        bulkCopy.BatchSize = list.Count;
        bulkCopy.DestinationTableName = tableName;

         var table =  new DataTable();
         var props = TypeDescriptor.GetProperties( typeof(T))
           .Cast<PropertyDescriptor>()
           .Where(propertyInfo => propertyInfo.PropertyType.Namespace.Equals( " System "))
           .ToArray();

         foreach ( var propertyInfo  in props)
        {
            bulkCopy.ColumnMappings.Add(propertyInfo.Name, propertyInfo.Name);
            table.Columns.Add(propertyInfo.Name, Nullable.GetUnderlyingType(propertyInfo.PropertyType) ?? propertyInfo.PropertyType);
        }

         var values =  new  object[props.Length];
         foreach ( var item  in list)
        {
             for ( var i =  0; i < values.Length; i++)
            {
                values[i] = props[i].GetValue(item);
            }

            table.Rows.Add(values);
        }

        bulkCopy.WriteToServer(table);
    }
}

var imports =  new List<sendapientity>();
foreach (JToken phone  in phones)
{
    SendEntity sendphone = JsonConvert.DeserializeObject<SendEntity>(phone.ToString());
     string tphone = sendphone.phone;  int sendid = Convert.ToInt32(sendphone.id);

    sendapientity s =  new sendapientity();
    s.UserId = userid;
    s.PartnersCode = partnerscode;
    s.SendId = sendid;
    s.Phone = tphone;
    s.Message = msg;
    s.SentTime = sendtime;
    s.CreateTime = DateTime.Now;
    s.BatchId = batchid;
    s.Count = count;
    imports.Add(s);
}

  using (SMMMContext db =  new SMMMContext())
 {
     BulkInsert(db.Database.Connection.ConnectionString,  " Send_Api ", imports);
 }



  public  class sendapientity
 {
      public  int UserId {  get;  set; }
      public  string PartnersCode {  get;  set; }
      public  int SendId {  get;  set; }
      public  string Phone {  get;  set; }
      public  string Message {  get;  set; }
      public  string SentTime {  get;  set; }
      public DateTime CreateTime {  get;  set; }
      public  long BatchId {  get;  set; }
      public  int Count {  get;  set; }
 }

 

 

在JavaScript中推荐的做法是用encodeURI对URI的网址部分编码，用encodeURIComponent对URI中传递的参数进行编码。

在C#中推荐的做法是用Uri.EscapeUriString对URI的网址部分编码，用Uri.EscapeDataString对URI中传递的参数进行编码。

 

public  static  int ToInt32( double value)
{
     if (value >=  0.0)
    {
         if (value <  2147483647.5)
        {
             int num = ( int)value;
             double num2 = value - num;
             if ((num2 >  0.5) || ((num2 ==  0.5) && ((num &  1) !=  0)))
            {
                num++;
            }
             return num;
        }
    }
     else  if (value >= - 2147483648.5)
    {
         int num3 = ( int)value;
         double num4 = value - num3;
         if ((num4 < - 0.5) || ((num4 == - 0.5) && ((num3 &  1) !=  0)))
        {
            num3--;
        }
         return num3;
    }
     throw  new OverflowException(Environment.GetResourceString( " Overflow_Int32 "));
}

 

public  enum  CommentType { 不推荐= 0 , 一般= 3 , 良= 4 , 优= 5  }  

///   <summary>
         ///  绑定评分类型
         ///   </summary>
         ///   <param name="RBL"></param>
         protected  static  void BindRadioButtonList(RadioButtonList RBL)
        {
            RBL.Items.Clear();
            Type typ =  typeof(CommentType);
             foreach ( int i  in Enum.GetValues(typ))
            {
                RBL.Items.Add( new ListItem(Enum.GetName(typ, i), Enum.Format(typ, Enum.Parse(typ, Enum.GetName(typ, i)),  " d ")));
                RBL.SelectedValue = i.ToString();
            }
        }
  ///   <summary>
         ///  获取类型名称
         ///   </summary>
         ///   <param name="typeid"></param>
         ///   <returns></returns>
         protected  static  string BindRating( string typeid)
        {
             string typename =  "";
            Type typ =  typeof(CommentType);
             foreach ( int i  in Enum.GetValues(typ))
            {
                 if (typeid == Enum.Format(typ, Enum.Parse(typ, Enum.GetName(typ, i)),  " d "))
                {
                    typename = Enum.GetName(typ, i);
                }
            }
             return typename;
        }

 

// .NET 正确获取当前URL
HttpContext.Current.Request.Url.ToString()    不可靠
HttpContext.Current.Request.Url.PathAndQuery  正确 

///  new List <int> (ht.Keys)，用到了 List 的构造拷贝函数
///  在遍历数据结构的时候，是不可以修改原数据结构的。不然就会抛出错误。
foreach ( string key  in  new List< string>(_IpAdresses.Keys))
    {
        _IpAdresses[key]--;
         if (_IpAdresses[key] ==  0)
            _IpAdresses.Remove(key);
    }

c# 四舍五入 保留几位小数点

     protected   string  getProductPrice( int  id)
    {
        CustomerProInfo cp  =  ahlan.getCustomerProInfoByID(id);
         double  x  =   double .Parse((cp.Product.sprice  *  cp.proValue  /   10 ).ToString());  // 两个double相乘结果是double?，所以要强制在转换一次
         return  ChinaRound(x, 2 ).ToString();
    }
     // value你要转换的double数据，decimals要保留的小数点
     double  ChinaRound( double  value,  int  decimals)
    {
         if  (value  <   0 )
        {
             return  Math.Round(value  +   5   /  Math.Pow( 10 , decimals  +   1 ), decimals, MidpointRounding.AwayFromZero);
        }
         else
        {
             return  Math.Round(value, decimals, MidpointRounding.AwayFromZero);
        }
    }

 

//判断用户是手机还是pc访问
public  class IsPhoneAttribute : ActionFilterAttribute
     {
          public  override  void OnActionExecuting(ActionExecutingContext filterContext)
         {
              string u = filterContext.HttpContext.Request.ServerVariables[ " HTTP_USER_AGENT "];
             Regex b =  new Regex( @" android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino ", RegexOptions.IgnoreCase | RegexOptions.Multiline);
             Regex v =  new Regex( @" 1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\- ", RegexOptions.IgnoreCase | RegexOptions.Multiline);
              if (!(b.IsMatch(u) || v.IsMatch(u.Substring( 0,  4))))
             {
                 filterContext.Controller.ViewData[ " ErrorMessage "] =  " 对不起,请用手机访问！ ";
                 filterContext.Result =  new ViewResult()
                 {
                     ViewName =  " ErrorInfo ",
                     ViewData = filterContext.Controller.ViewData,
                 };
             }
 
         }
     }

 

 发送短信接口 

public  static  bool SendMobileMsg( string msgContent, List< string> destListPhones)
         {
              try
             {
                  bool result =  false;
                  string strPhones =  string.Join( " ; ", destListPhones.ToArray());
                 strPhones +=  " ; ";
                  var encoding = System.Text.Encoding.GetEncoding( " GB2312 ");
 
                  string postData =  string.Format( " uid=用户名&pwd=密码&mobile={0};&msg={1}&dtime= ", strPhones, msgContent);
 
                  byte[] data = encoding.GetBytes(postData);
 
                  //  定义 WebRequest
                  HttpWebRequest myRequest =
                 (HttpWebRequest)WebRequest.Create( " http://www.smsadmin.cn/smsmarketing/wwwroot/api/post_send/ ");
 
                 myRequest.Method =  " POST ";
                 myRequest.ContentType =  " application/x-www-form-urlencoded ";
                 myRequest.ContentLength = data.Length;
 
                 Stream newStream = myRequest.GetRequestStream();
 
                  // 发送数据
                  newStream.Write(data,  0, data.Length);
                 newStream.Close();
 
                  //  得到 Response
                 HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
                 StreamReader reader =  new StreamReader(myResponse.GetResponseStream(), Encoding.Default);
                  string content = reader.ReadToEnd();
 
                  if (content.Substring( 0,  1) ==  " 0 ")
                     result =  true;
                  else
                 {
                      if (content.Substring( 0,  1) ==  " 2 ")  // 余额不足
                     {
                        // "手机短信余额不足";
                        // TODO
                     }
                      else
                     {
                        // 短信发送失败的其他原因，请参看官方API
                     }
                     result =  false;
                 }
 
                  return result;
             }
              catch
             {
                  return  false;
             }
         
         }

 

 

很“干净”的调用，没有WebService也没有COM。

唯一要注意的就是编码用 GB2312 否则您收到短信的中文部分都是乱码，另外第10行的用户名和密码被硬编码了，应写在配置文件内。

 

使用正则替换文章屏蔽词

private   static   readonly  Regex reg_b  =   new  Regex( @" \B " , RegexOptions.Compiled);
private   static   readonly  Regex reg_en  =   new  Regex( @" [a-zA-Z]+ " , RegexOptions.Compiled);
private   static   readonly  Regex reg_num  =   new  Regex( @" ^[\-\.\s\d]+$ " , RegexOptions.Compiled);

private   static  Regex reg_word  =   null ;  // 组合所有屏蔽词的正则

private   static  Regex GetRegex()
{
     if  (reg_word  ==   null )
    {
        reg_word  =   new  Regex(GetPattern(), RegexOptions.Compiled  |  RegexOptions.IgnoreCase);
    }
     return  reg_word;
}

///   <summary>
///  检查输入内容是否包含脏词（包含返回true）
///   </summary>
public   static   bool  HasBlockWords( string  raw)
{
     return  GetRegex().Match(raw).Success;
}
///   <summary>
///  脏词替换成*号
///   </summary>
public   static   string  WordsFilter( string  raw)
{
     return  GetRegex().Replace(raw,  " *** " );
}
///   <summary>
///  获取内容中含有的脏词
///   </summary>
public   static  IEnumerable < string >  GetBlockWords( string  raw)
{
     foreach  (Match mat  in  reg_word.Matches(raw))
    {
         yield   return  (mat.Value);
    }
}
private   static   string  GetPattern()
{
    StringBuilder patt  =   new  StringBuilder();
     string  s;
     foreach  ( string  word  in  GetBlockWords())
    {
         if  (word.Length  ==   0 )  continue ;
         if  (word.Length  ==   1 )
        {
            patt.AppendFormat( " |({0}) " , word);
        }
         else   if  (reg_num.IsMatch(word))
        {
            patt.AppendFormat( " |({0}) " , word);
        }
         else   if  (reg_en.IsMatch(word))
        {
            s  =  reg_b.Replace(word,  @" (?:[^a-zA-Z]{0,3}) " );
            patt.AppendFormat( " |({0}) " , s);
        }
         else
        {
            s  =  reg_b.Replace(word,  @" (?:[^\u4e00-\u9fa5]{0,3}) " );
            patt.AppendFormat( " |({0}) " , s);
        }
    }
     if  (patt.Length  >   0 )
    {
        patt.Remove( 0 ,  1 );
    }
     return  patt.ToString();
}

///   <summary>
///  获取所有脏词
///   </summary>
public   static   string [] GetBlockWords()
{
     return   new   string []{ " 国民党 " , " fuck " , " 110 " }; // 这里应该从数据库获取
}

 

 

这个程序可替换以下内容：

国民党

国-民-党

国o民o党

fuck

f.u.c.k

110（110的变形写法不被替换）

 

 

// int double 转换
int  goodper;
int  badper;
int  goodposts  =  Convert.ToInt32(dr[ " goodpost " ]);
int  badposts  =  Convert.ToInt32(dr[ " badpost " ]);
if  (goodposts  +  badposts  ==   0 )
{
    goodper  =  badper  =   0 ;
}
else
{
     int  alls  =  goodposts  +  badposts;
    goodper  =  Convert.ToInt32(( double )goodposts  /  alls  *   100 );
    badper  =   100   -  goodper;
}

如：
Convert.ToInt32( 4 / 5 * 100 ) = 0    
Convert.ToInt32( 4.0 / 5 * 100 ) = 80


// 中英文字符串截取方法 
public   static   string  Intercept( string  input,  int  p)
        {
            Encoding encode  =  Encoding.GetEncoding( " gb2312 " );
             byte [] byteArr  =  encode.GetBytes(input);
             if  (byteArr.Length  <=  p)  return  input;

             int  m  =   0 , n  =   0 ;
             foreach  ( byte  b  in  byteArr)
            {
                 if  (n  >=  p)  break ;
                 if  (b  >   127 ) m ++ ;  // 重要一步：对前p个字节中的值大于127的字符进行统计
                n ++ ;
            }
             if  (m  %   2   !=   0 ) n  =  p  +   1 ;  // 如果非偶：则说明末尾为双字节字符，截取位数加1

             return  encode.GetString(byteArr,  0 , n);
        }
Console.WriteLine(Intercept( " ABC中国人 " ,  7 ));
Console.WriteLine(Intercept( " ABCD中国人 " ,  7 ));
Console.WriteLine(Intercept( " ABC中D国人 " ,  7 ));

/*
测试代码的结果： 
ABC中国 
ABCD中国 
ABC中D国
*/


// kigg 发表于某天某时某分前 
     public   static   string  Ago( this  DateTime target)
    {
        StringBuilder result  =   new  StringBuilder();
        TimeSpan diff  =  (DateTime.Now  -  target.ToLocalTime());
         if  (diff.Days  >   0 )
        {
            result.AppendFormat( " {0} days " , diff.Days);
        }
         if  (diff.Hours  >   0 )
        {
             if  (result.Length  >   0 )
            {
                result.Append( " ,  " );
            }
            result.AppendFormat( " {0} hours " , diff.Hours);
        }
         if  (diff.Minutes  >   0 )
        {
             if  (result.Length  >   0 )
            {
                result.Append( " ,  " );
            }
            result.AppendFormat( " {0} minutes " , diff.Minutes);
        }
         if  (result.Length  ==   0 )
        {
            result.Append( " few moments " );
        }
         return  result.ToString();
    }
}



<% # GetOutTime(Eval( " 发布时间 " ))  %>
 
     ///   <summary>
     ///  
     ///   </summary>
     ///   <param name="dtime"> 发布时间 </param>
     ///   <returns></returns>
     public   static   string  GetOutTime(DateTime dtime)
    {
        DateTime dt  =  DateTime.Now;
        TimeSpan ts  =  ((TimeSpan)(dt  -  dtime));
        
         int  days  =  ts.Days;
         int  hours  =  ts.Hours;
         int  minutes  =  ts.Minutes;
         int  milliseconds  =  ts.Milliseconds;

         if  (days  >   0 )  return   string .Format( " 发布于{0}天前 " , days);
         if  (hours  >   0 )  return   string .Format( " 发布于{0}小时前 " , hours);
         if  (minutes  >   0 )  return   string .Format( " 发布于{0}分钟前 " , minutes);
         return   string .Format( " 发布于{0}秒前 " , milliseconds);
    }

  public  static  string  ToPrettyDate ( this  DateTime date )
         {
            var timeSince  =  DateTime . Now . Subtract ( date ) ;
             if  ( timeSince . TotalMilliseconds  <  1 )  return  "not yet" ;
             if  ( timeSince . TotalMinutes  <  1 )  return  "just now" ;
             if  ( timeSince . TotalMinutes  <  2 )  return  "1 minute ago" ;
             if  ( timeSince . TotalMinutes  <  60 )  return  string . Format ( "{0} minutes ago" , timeSince . Minutes ) ;
             if  ( timeSince . TotalMinutes  <  120 )  return  "1 hour ago" ;
             if  ( timeSince . TotalHours  <  24 )  return  string . Format ( "{0} hours ago" , timeSince . Hours ) ;
             if  ( timeSince . TotalDays  ==  1 )  return  "yesterday" ;
             if  ( timeSince . TotalDays  <  7 )  return  string . Format ( "{0} day(s) ago" , timeSince . Days ) ;
             if  ( timeSince . TotalDays  <  14 )  return  "last week" ;
             if  ( timeSince . TotalDays  <  21 )  return  "2 weeks ago" ;
             if  ( timeSince . TotalDays  <  28 )  return  "3 weeks ago" ;
             if  ( timeSince . TotalDays  <  60 )  return  "last month" ;
             if  ( timeSince . TotalDays  <  365 )  return  string . Format ( "{0} months ago" , Math . Round ( timeSince . TotalDays  /  30 ) ) ;
             if  ( timeSince . TotalDays  <  730 )  return  "last year" ;
             return  string . Format ( "{0} years ago" , Math . Round ( timeSince . TotalDays  /  365 ) ) ;
         }

            DateTime dt  =  DateTime.Now;
            Gengerate g  =   new  Gengerate();
            g.GengerateHtml();
            DateTime dt2  =  DateTime.Now;
            TimeSpan ts  =  dt2.Subtract(dt);
             string  strTs  =  ts.TotalSeconds.ToString();
            ltGengerate.Text  =   " 生成成功，生成用时 "   +  strTs  +   " 秒！ " ;
     
 



// ddl点击赋值：
if (DropDownList1.selectedindex >- 1 )
{
DropDownList1.Items[DropDownList1.SelectedIndex].Text = TextBox1.Text;
}

//设置ddl的enabled属性：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="id" 

OnRowDataBound="GridView1_RowDataBound" > 

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

if (e.Row.RowType == DataControlRowType.DataRow) //一定要

{

DropDownList ddl = (DropDownList)e.Row.FindControl("DropDownList1");

if (ddl != null)

{

if (ddl.SelectedValue == "1")

{

ddl.Enabled = false;

}

}



}

}

 

string strPath = Server.MapPath("~/roomindex");

/// <summary>

/// 用递归方法删除文件夹目录及文件

/// </summary>

/// <param name="dir">带文件夹名的路径</param> 

public void DeleteFolder(string dir)

{

if (Directory.Exists(dir)) //如果存在这个文件夹删除之 

{

foreach (string d in Directory.GetFileSystemEntries(dir))

{

if (File.Exists(d))

File.Delete(d); //直接删除其中的文件 

else

DeleteFolder(d); //递归删除子文件夹 

}

Directory.Delete(dir, true); //删除已空文件夹 

}

}

确保您具有足够的权限 对路径 的访问被拒绝

删除权限设置： 

在web.config中的<system.web>下加入<identity impersonate="true"/>

 

 

// 根据用户选择的值设置Cookie的保存时间
if  ( this .RadioButtonList1.SelectedValue.ToString()  ==   " 1 " )  // 一天
{
this .Response.Cookies[ " UserName " ].Expires  =  DateTime.Now.AddDays( 1 );
this .Response.Cookies[ " Password " ].Expires  =  DateTime.Now.AddDays( 1 );
}
if  (RadioButtonList1.SelectedValue.ToString()  ==   " 2 " )  // 一个月
{
this .Response.Cookies[ " UserName " ].Expires  =  DateTime.Now.AddMonths( 1 );
this .Response.Cookies[ " Password " ].Expires  =  DateTime.Now.AddMonths( 1 );
}
if  (RadioButtonList1.SelectedValue.ToString()  ==   " 3 " )  // 半年
{
this .Response.Cookies[ " UserName " ].Expires  =  DateTime.Now.AddYears( 1   /   2 );
this .Response.Cookies[ " Password " ].Expires  =  DateTime.Now.AddYears( 1   /   2 );
}
if  (RadioButtonList1.SelectedValue.ToString()  ==   " 4 " )  // 一年
{
this .Response.Cookies[ " UserName " ].Expires  =  DateTime.Now.AddYears( 1 );
this .Response.Cookies[ " Password " ].Expires  =  DateTime.Now.AddYears( 1 );
}
// 将用户输入的用户名和密码保存到Cookie中
this .Response.Cookies[ " UserName " ].Value  =   this .tname.Text;
this .Response.Cookies[ " Password " ].Value  =   this .tpass.Text;
// 跳转到getcookie.aspx页面中显示Cookie中的值
Response.Write( " 用户登录成功！并将用户登录的用户名和密码保存到Cookie中。 " );
}
else
{
Response.Redirect( " Login.aspx " );
}
}
// Attribute：
Response.Write( " 浏览器的信息为：<br> " );
Response.Write( " (1)浏览器= "   +  Request.Browser.Browser  +   " <br> " );
Response.Write( " (2)型态= "   +  Request.Browser.Type  +   " <br> " );
Response.Write( " (3)名称= "   +  Request.Browser.Browser  +   " <br> " );
Response.Write( " (4)版本= "   +  Request.Browser.Version  +   " <br> " );
Response.Write( " (5)使用平台= "   +  Request.Browser.Platform  +   " <br> " );
Response.Write( " (6)是否为测试版= "   +  Request.Browser.Beta  +   " <br> " );
Response.Write( " (7)是否为位的环境= "   +  Request.Browser.Win16  +   " <br> " );
Response.Write( " (8)是否为位的环境= "   +  Request.Browser.Win32  +   " <br> " );
Response.Write( " (9)是否支持框架(Frame)= "   +  Request.Browser.Frames  +   " <br> " );
Response.Write( " (10)是否支持表格(Table)= "   +  Request.Browser.Tables  +   " <br> " );
Response.Write( " (11)是否支持Cookies= "   +  Request.Browser.Cookies  +   " <br> " );
Response.Write( " (12)是否支持ActiveX Controls= "   + Request.Browser.ActiveXControls  +   " <br> " );
string  bb  =  System.Environment.CurrentDirectory.ToString();
Response.Write(bb);
string  a  =  Request.Url.ToString();
string  b  =  Request.Path.ToString();
string  c  =  Request.PhysicalPath.ToString();
Response.Write( " URL地址： "   +  a  +   " <br>虚拟路径： "   +  b  +   " <br>物理路径： "   +  c);
string  HostName = Server.MachineName.ToString();
Response.Write( " 电脑的名称为： " + HostName)
string  path  =  Server.MapPath( " ~ " ).ToString();
Response.Write( " 物理路径为： " + path);
// 结果：
// 物理路径为：C:\Documents and Settings\itd0300166.PLSH166\桌面\曾祥展\ASP.NET 2.0+SQL Server 2005全程指南\Study_NET\chap05\Server
string  Encode  =  Server.HtmlDecode( " <b>HTML代码中的内容</b> " );
string  Decode  =  Server.HtmlEncode( " <b>HTML代码中的内容</b> " );
Response.Write(Encode + " <br> " + Decode);
结果：
HTML代码中的内容
< b > HTML代码中的内容 </ b >

http://www.cnblogs.com/hun_dan/archive/2011/03/01/1968298.html


/
/// /gridview导出excel
public   override   void  VerifyRenderingInServerForm(Control control)
{
//  Confirms that an HtmlForm control is rendered for
}
protected   void  Button3_Click( object  sender, EventArgs e)
{
Response.Clear();
Response.Buffer  =   false ;
Response.Charset  =   " GB2312 " ;
Response.AppendHeader( " Content-Disposition " ,  " attachment;filename=score.xls " );
Response.ContentEncoding  =  System.Text.Encoding.GetEncoding( " GB2312 " );
Response.ContentType  =   " application/ms-excel " ;
Response.Write( " <meta http-equiv=Content-Type content=\ " text / html; charset = GB2312\ " > " );
this .EnableViewState  =   false ;
System.Globalization.CultureInfo str  =   new  System.Globalization.CultureInfo( " ZH-CN " ,  true );
System.IO.StringWriter oStringWriter  =   new  System.IO.StringWriter(str);
HtmlTextWriter oHtmlTextWriter  =   new  HtmlTextWriter(oStringWriter);
GridView1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();
}
< script language = " javascript "  type = " text/javascript " >
// 先获取所有的Checkbox
var chkList  =  document.getElementsByName( " CheckBox1 " );
window.onload  =  function()
{
// 为所有checkbox添加onclick事件处理，以自动更新“已选择的项”
for (var i = 0 ; i < chkList.length; i ++ )
{
chkList[i].onclick  =  chkClick;
}
}
// checkbox的onclick事件，用于更新“已选择的项”
function chkClick()
{
var checkedList  =   "" ;
// 获取所有被选中的项
for (var i = 0 ; i < chkList.length; i ++ ){
if (chkList[i]. checked )
checkedList  +=  chkList[i].value  +   " , " ;
}
// 把选中项的列表显示到“已选择的项”中，substring在这里是为了去除最后一个逗号
document.getElementById( " HiddenField1 " ).value  =  checkedList.substring( 0 ,checkedList.length - 1 );
}
</ script >
string  type  =  HiddenField1.Value;
string [] keyValue  =  type.Split( ' , ' );
foreach  ( string  str  in  keyValue)
{
// 判定是否选中任何一门
string  sql1  =   " select * from xk where 课程编号=' "   +  str  +   " '  " ;
// 遍历 Panel1下的下拉框
foreach  (System.Web.UI.Control ddl  in  Panel1.Controls)
{
if  (ddl  is  DropDownList)
{
DropDownList d  =  (DropDownList)ddl;
str  =  str  +  d.SelectedValue.ToString()  +   " , " ;
}
}
int  j  =   0 ;
string [] words  =  sqlpj.Split( ' , ' );
// TextBox1.Text = sqlpj.Substring(sqlpj.IndexOf(words[20]), sqlpj.Length- sqlpj.IndexOf(words[20]));
TextBox1.Text  =  sqlpj.Remove( 0 ,sqlpj.IndexOf(words[ 20 ]));
foreach  (System.Web.UI.Control ddl  in  Panel1.Controls)
{
if  ( ddl  is  DropDownList)
{
DropDownList d  =  (DropDownList)ddl;
d.Text  =  words[j];
j ++ ;
}
}
// 第二种方法
string [] sqlleft  =   new   string [ 20 ];
string  sqlrigth  =  sqlpj;
for  ( int  i  =   0 ; i  <   20 ; i ++ )
{
int  dex  =  sqlpj.IndexOf( ' , ' );
sqlleft[i]  =  sqlrigth.Substring( 0 , dex);
sqlrigth  =  sqlrigth.Substring(dex  +   1 );
}
TextBox1.Text  =  sqlrigth;
int  j  =   0 ;
foreach  (System.Web.UI.Control ddl  in  Panel1.Controls)
{
if  (ddl  is  DropDownList)
{
DropDownList d  =  (DropDownList)ddl;
d.Text  =  sqlleft[j];
j ++ ;
}
}
< asp:HyperLinkField DataNavigateUrlFields = " 任课老师 "
DataNavigateUrlFormatString = " Stu_pjtea.aspx?任课老师={0} "  HeaderText = " 进入评教 "
NavigateUrl = " Stu_pjtea.aspx "  Text = " &lt;font color=red &gt;进入&lt;/font&gt; "   />
string  teaname  =  Request.QueryString[ " 任课老师 " ].ToString();

 

 

//从1,50随机20个不重复数
  public int[] GetRandomUnrepeatArray(int minValue, int maxValue, int count)
  {
      Random rnd = new Random();
      int length = maxValue - minValue + 1;
      byte[] keys = new byte[length];
      rnd.NextBytes(keys);
      int[] items = new int[length];
      for (int i = 0; i < length; i++)
      {
          items[i] = i + minValue;
      }
      Array.Sort(keys, items);
      int[] result = new int[count];
      Array.Copy(items, result, count);
      return result;
  }

调用：
int[] a= GetRandomUnrepeatArray(1,100,20);
       for (int i = 0; i < a.Length; i++)
       {
           Response.Write(a[i].ToString()+",");
       }
//结果：27,34,44,19,30,67,58,18,26,57,62,16,8,91,100,31,56,85,88,29




 




/// <summary>     
/// 从1到33中任意选取不重复的6个随机数     
/// </summary>     
/// <returns></returns>     
public List<int> GenerateNumber()     
{     
    //用于存放1到33这33个数     .    List<int> container = new List<int>(33);     
    //用于保存返回结果     
    List<int> result = new List<int>(6);     
    Random random = new Random();     
    for (int i = 1; i <= 33; i++)     
    {     
        container.Add(i);     
    }     
    int index = 0;     
    int value = 0;     
    for (int i = 1; i <= 6; i++)     
    {     
        //从[0,container.Count)中取一个随机值，保证这个值不会超过container的元素个数     
        index = random.Next(0, container.Count);     
        //以随机生成的值作为索引取container中的值     
        value = container[index];     
        //将随机取得值的放到结果集合中     
        result.Add(value);     
        //从容器集合中删除这个值，这样会导致container.Count发生变化     
        container.RemoveAt(index);     
        //注意这一句与上面一句能达到同样效果，但是没有上面一句快     
        //container.Remove(value);     
    }    
    //result.Sort();排序     
    return result;     
} 





public int[] GenerateNumber()     
{     
    //用于存放1到33这33个数     
    int[] container = new int[33];     
    //用于保存返回结果     
    int[] result = new int[6];     
    Random random = new Random();     
    for (int i = 1; i <= 33; i++)     
    {     
        container[i - 1] = i;     
    }    
    int index = 0;     
    int value = 0;     
    for (int i = 0; i < 6; i++)    
    {     
        //从[1,container.Count + 1)中取一个随机值，保证这个值不会超过container的元素个数     
        index = random.Next(1, container.Length-1-i);     
        //以随机生成的值作为索引取container中的值     
        value = container[index];     
        //将随机取得值的放到结果集合中     
        result[i]=value;    
        //将刚刚使用到的从容器集合中移到末尾去     
        container[index] = container[container.Length - i-1];     
        //将队列对应的值移到队列中     
       container[container.Length - i-1] = value;     
    }     
    //result.Sort();排序    
    return result;    
} 

 

  Random r = new Random(Guid.NewGuid().GetHashCode()); 随机不重复

 

 // Select/Deselect checkboxes based on header checkbox
function SelectheaderCheckboxes(headerchk) {
// debugger
var gvcheck = document.getElementById('rptList');
var i;
//Condition to check header checkbox selected or not if that is true checked all checkboxes
var checkedList = "";
if (headerchk.checked) {
for (i = 0; i < gvcheck.rows.length; i++) {
var inputs = gvcheck.rows[i].getElementsByTagName('input');
inputs[0].checked = true;
var s=$($(inputs)).next().html();
if (s!==null) {
checkedList += s + ",";
}
document.getElementById("hidvalue").value = checkedList.substring(0, checkedList.length - 1);
}
}
//if condition fails uncheck all checkboxes in gridview
else {
for (i = 0; i < gvcheck.rows.length; i++) {
var inputs = gvcheck.rows[i].getElementsByTagName('input');
inputs[0].checked = false;
}
document.getElementById("hidvalue").value = "";
}
}
//function to check header checkbox based on child checkboxes condition
function Selectchildcheckboxes(header) {
var ck = header;
var count = 0;
var gvcheck = document.getElementById('rptList');
var headerchk = document.getElementById(header);
var rowcount = gvcheck.rows.length;
var checkedList = '';
//By using this for loop we will count how many checkboxes has checked
for (i = 1; i < gvcheck.rows.length; i++) {
var inputs = gvcheck.rows[i].getElementsByTagName('input');
if (inputs[0].checked) {
count++;
var s = $($(inputs)).next().html();
if (s !== null) {
checkedList += s + ",";
}
}
document.getElementById("hidvalue").value = checkedList.substring(0, checkedList.length - 1);
}
//Condition to check all the checkboxes selected or not
if (count == rowcount - 1) {
headerchk.checked = true;
}
else {
headerchk.checked = false;
}
}
//先获取所有的Checkbox
var chkList = $('#rptList').find(".chkChild input");
window.onload = function () {
//为所有checkbox添加onclick事件处理，以自动更新“已选择的项”
for (var i = 0; i < chkList.length; i++) {
chkList[i].onclick = chkClick;
}
}
//checkbox的onclick事件，用于更新“已选择的项”
function chkClick() {
var checkedList = "";
//获取所有被选中的项
for (var i = 0; i < chkList.length; i++) {
if (chkList[i].checked)
// checkedList += chkList[i].value + ",";
checkedList += $($(chkList[i])).next().html() + ",";
}
//把选中项的列表显示到“已选择的项”中，substring在这里是为了去除最后一个逗号
document.getElementById("hidvalue").value = checkedList.substring(0, checkedList.length - 1);
}

 

 

   /// <summary>
        ///  随机排列数组元素 打乱顺序   调用  string[] newlist = Shuffle(arr);
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="Source"></param>
        public static   T[] Shuffle<T>(T[] Source)
        {
            if (Source == null) return null;
            int len = Source.Length;//用變數記會快一點點點
            Random rd = new Random();
            int r;//記下隨機產生的號碼
            T tmp;//暫存用
            for (int i = 0; i < len - 1; i++)
            {
                r = rd.Next(i, len);//取亂數，範圍從自己到最後，決定要和哪個位置交換，因此也不用跑最後一圈了
                if (i == r) continue;
                tmp = Source[i];
                Source[i] = Source[r];
                Source[r] = tmp;
            }
            return Source;

        }