常有函数

 

  1using System;
  2using System.Drawing;
  3using System.Web;
  4using System.Web.UI;
  5using System.Web.UI.HtmlControls;
  6using System.IO;
  7using System.Threading;
  8
  9namespace CommonClass
 10{
 11    /**//// <summary>
 12    /// Common 的摘要说明。
 13    /// </summary>
 14    public class Common
 15    {
 16        public Common()
 17        {
 18            //
 19            // TODO: 在此处添加构造函数逻辑
 20            //
 21        }
 22
 23
 24        (1) 转换大小 ChangeImage(string 原文件路径,string ,int,int,int)#region (1) 转换大小 ChangeImage(string 原文件路径,string ,int,int,int)
 25        public static bool ChangeImage( string strSourceFile, string strSaveToFile, int nSaveToWidth, int nSaveToHeight, int nMode )
 26        {
 27            int nValue;
 28            bool bFlag;
 29            
 30            try
 31            {
 32                System.Drawing.Image SourceImage = System.Drawing.Image.FromFile( strSourceFile );
 33                
 34                
 35                if ( nMode == 1){}
 36                if ( nMode == 2 )
 37                {
 38                    if ( SourceImage.Width < nSaveToWidth )
 39                    {
 40                        nSaveToWidth = SourceImage.Width;
 41                        nSaveToHeight = SourceImage.Height;
 42                    }
 43                    else
 44                    {
 45                        nSaveToHeight = ( int )SourceImage.Height * nSaveToWidth / SourceImage.Width;
 46                    }
 47                }
 48                if ( nMode == 3 )
 49                {
 50                    if ( SourceImage.Height < nSaveToHeight )
 51                    {
 52                        nSaveToWidth = SourceImage.Width;
 53                        nSaveToHeight = SourceImage.Height;
 54                    }
 55                    else
 56                    {
 57                        nSaveToWidth = ( int )SourceImage.Width * nSaveToHeight / SourceImage.Height;
 58                    }
 59                }
 60                if ( nMode == 4 )
 61                {
 62                    nValue = ( int )SourceImage.Height * nSaveToWidth / SourceImage.Width;
 63                    if ( nValue > nSaveToHeight )
 64                    {
 65                        nSaveToWidth = ( int )SourceImage.Width * nSaveToHeight / SourceImage.Height;
 66                    }
 67                    else
 68                    {
 69                        nSaveToHeight = nValue;
 70                    }
 71                }
 72                System.Drawing.Image SaveToImage = SourceImage.GetThumbnailImage( nSaveToWidth, nSaveToHeight, null, new System.IntPtr() );
 73                SaveToImage.Save( strSaveToFile, GetImageType( strSaveToFile ) );
 74
 75                bFlag = true;
 76                SourceImage.Dispose();
 77            }
 78            catch( System.Exception e )
 79            {
 80                bFlag = false;
 81                e.ToString();
 82            }
 83
 84            return bFlag;
 85        }
 86        #endregion
 87
 88        (1) 转换大小string[] ZipImage(string 原文件路径,string ,int,int,int)#region (1) 转换大小string[] ZipImage(string 原文件路径,string ,int,int,int)
 89        public static string[] ZipImage(HtmlInputFile myFile,string strSourcePath, string strSaveToPath,int nSaveToWidth, int nSaveToHeight, bool tag)
 90        {
 91            string ImageName,FileName;
 92            string[] imgname=new string[2];
 93            int ImageHeight,ImageWidth;
 94            
 95            FileName=strSourcePath.Substring(strSourcePath.LastIndexOf("\\")+1);
 96            //形成新的图片名
 97            ImageName=GetDate(DateTime.Now,5);
 98            imgname[0]=ChangeImgName(FileName,ImageName);
 99            imgname[1]=ChangeImgName(FileName,ImageName+"_1");
100            //获取图片高度和宽读
101            ImageHeight=GetImageHeight(myFile.PostedFile.InputStream);
102            ImageWidth=GetImageWidth(myFile.PostedFile.InputStream);
103            //上传图片到服务器
104            UploadImage(myFile,strSaveToPath,imgname[0]);
105            
106            if( tag )
107            {
108                double cut;
109                if( ImageHeight < nSaveToHeight && ImageWidth < nSaveToWidth )
110                    UploadImage(myFile,strSaveToPath,imgname[1]);
111                else
112                {
113                    if( ImageHeight > ImageWidth )
114                    {
115                        cut=Convert.ToDouble(ImageHeight)/nSaveToWidth;
116                        ChangeImage(strSaveToPath+imgname[0],strSaveToPath+imgname[1],Convert.ToInt32(Convert.ToDouble(ImageWidth)/cut),nSaveToHeight,1);        
117                    }
118                    else
119                    {
120                        cut=Convert.ToDouble(ImageWidth)/nSaveToHeight;
121                        ChangeImage(strSaveToPath+imgname[0],strSaveToPath+imgname[1],nSaveToWidth,Convert.ToInt32(Convert.ToDouble(ImageHeight)/cut),1);
122                    }
123                }
124            }
125            
126            return imgname;
127        }
128        #endregion
129        
130        (2) 根据文件名字符串的扩展名，得到一种图片文件的格式#region (2) 根据文件名字符串的扩展名，得到一种图片文件的格式
131        public static System.Drawing.Imaging.ImageFormat GetImageType( string strFileName )
132        {
133            int i = strFileName.LastIndexOf( "." );
134            string strExt = strFileName.Substring( i + 1 );
135            System.Drawing.Imaging.ImageFormat reImageType = null;
136            switch( strExt )
137            {
138                case "jpg":
139                case "jpeg":
140                    reImageType = System.Drawing.Imaging.ImageFormat.Jpeg;
141                    break;
142                case "gif":
143                    reImageType = System.Drawing.Imaging.ImageFormat.Gif;
144                    break;
145                case "bmp":
146                    reImageType = System.Drawing.Imaging.ImageFormat.Bmp;
147                    break;
148                case "tiff":
149                    reImageType = System.Drawing.Imaging.ImageFormat.Tiff;
150                    break;
151            }
152            return reImageType;
153        }
154        #endregion
155        
156        (3) 完成查找关键字字体高亮显示 string serkeys(string , string)#region (3) 完成查找关键字字体高亮显示 string serkeys(string , string)
157        public static string serkeys(string str,string sqlkey)
158        {
159            
160            //sqlstr 待查找的关键字
161            //str 已经查找到带有关键字的字符串
162
163            int len=sqlkey.Length;
164            int len1=str.Length;
165            
166            string onesqlstr,pproname,rproname="";
167            for(int i=0;i<=len-1;i++)
168            {
169                onesqlstr=sqlkey.Substring(i,1);
170                for(int j=0;j<=len1-1;j++)
171                {
172                    
173                    pproname=str.Substring(j,1);
174
175                    if(onesqlstr==pproname)
176                    {
177                        pproname="<font color=#ff033><b>"+pproname+"</b></font>";
178                        rproname+=pproname;
179                        if(i<len-1)
180                            onesqlstr=sqlkey.Substring(++i,1);
181                        else 
182                            continue;
183                    }
184                    else
185                    {
186                        rproname+=pproname;
187                    }
188                }
189            }
190            return rproname;
191            
192        }
193        #endregion
194
195        (4) 改变原来图片的名称 ChangeImgName(string img,string NewName)#region (4) 改变原来图片的名称 ChangeImgName(string img,string NewName)
196        public static string ChangeImgName(string imgPath,string NewName)
197        {
198            //imgPath是图片路径
199            //string newName;    新文件名     
200            string ExtendName;        //文件扩展名
201            string FileName;        //文件名
202            int i;
203            int j;
204            i= imgPath.LastIndexOf("\\") ;
205            FileName =imgPath.Substring(i+1);
206            j=FileName.LastIndexOf(".");
207            ExtendName=FileName.Substring(j);
208            NewName+=ExtendName.ToLower();
209
210            return NewName;
211        }
212        #endregion
213
214        (5) 返回日期样式GetDate() 获取日期样式 static string GetDate(object objDate, int Type)#region (5) 返回日期样式GetDate() 获取日期样式 static string GetDate(object objDate, int Type)
215        public static string GetDate( object t )
216        {
217            string GetDate;
218            DateTime dtDate;
219            dtDate=Convert.ToDateTime(t);
220            GetDate =dtDate.Year.ToString().Substring( 2 )+"-";
221            if ( dtDate.Month < 10 ) GetDate += "0";
222            GetDate += dtDate.Month+"-";
223            if ( dtDate.Day < 10 ) GetDate += "0";
224            GetDate += dtDate.Day;
225            return GetDate;
226        }
227        
228        public static string GetDate( object objDate, int Type )
229        {
230            try
231            {
232                DateTime dtDate;
233                string GetDate = "";
234                dtDate = Convert.ToDateTime( objDate );
235
236                switch( Type )
237                {
238                    case 1: // 2003-1-1
239                        GetDate = dtDate.Year + "-" + dtDate.Month + "-"  +dtDate.Day;
240                        break;
241                    case 2: // 2003-1-1 9:9:9
242                        GetDate = dtDate.Year + "-" + dtDate.Month + "-" + dtDate.Day + " " + dtDate.Hour + ":" + dtDate.Minute + ":" + dtDate.Second;
243                        break;
244                    case 3: // 2003年1月1日
245                        GetDate = dtDate.Year + "年" + dtDate.Month + "月"  +dtDate.Day + "日";
246                        break;
247                    case 4: // 2003年1月1日9点9分9秒
248                        GetDate = dtDate.Year + "年" + dtDate.Month + "月" + dtDate.Day + "日 " + dtDate.Hour + "点" + dtDate.Minute + "分" + dtDate.Second + "秒";
249                        break;
250                    case 5: // 20030101090909
251                        GetDate = "" + dtDate.Year;
252                        if ( dtDate.Month < 10 ) GetDate += "0";
253                        GetDate += dtDate.Month;
254                        if ( dtDate.Day < 10 ) GetDate += "0";
255                        GetDate += dtDate.Day;
256                        if ( dtDate.Hour < 10 ) GetDate += "0";
257                        GetDate += dtDate.Hour;
258                        if ( dtDate.Minute < 10 ) GetDate += "0";
259                        GetDate += dtDate.Minute;
260                        if ( dtDate.Second < 10 ) GetDate += "0";
261                        GetDate += dtDate.Second;
262                        break;
263                    case 6: // 2003.1.1
264                        GetDate = dtDate.ToShortDateString();
265                        break;
266                    case 7: // 03-1-1
267                        GetDate = "" + dtDate.Year.ToString().Substring( 2 ) + "-" + dtDate.Month + "-" + dtDate.Day;
268                        break;
269                    case 8: //20030102
270                        dtDate = Convert.ToDateTime( dtDate.ToShortDateString() );
271                        GetDate = "" + dtDate.Year;
272                        if ( dtDate.Month < 10 ) GetDate += "0";
273                        GetDate += dtDate.Month;
274                        if ( dtDate.Day < 10 ) GetDate += "0";
275                        GetDate += dtDate.Day;                        
276                        break;
277                    default: // 2003.1.1 9:9:9
278                        GetDate = dtDate.ToString();
279                        break;
280                }
281
282                return GetDate;
283            }
284            catch
285            {
286                return "";
287            }
288        }
289        #endregion
290
291        (6) 判断输入是否是数字bool IsNum(object str)#region (6) 判断输入是否是数字bool IsNum(object str)
292        public static bool IsNum(object str)
293        {
294            
295            foreach ( char sbit in str.ToString() )
296            {
297                if ( sbit < '0' || sbit > '9') return false;
298            }
299            return true;
300        }
301        #endregion
302
303        (8) 改变字符串长度string ChangeLen(string str,int len)#region (8) 改变字符串长度string ChangeLen(string str,int len)
304        public static string ChangeLen(string str,int len)
305        {
306            if(str.Length>len)
307                return str.Substring(0,len)+"..";
308            else
309                return str;
310        }
311        #endregion
312
313        (9) 图片上串 string UploadImage(HtmlInputFile myFile,string SavePath)#region (9) 图片上串 string UploadImage(HtmlInputFile myFile,string SavePath)
314        public static void UploadImage(HtmlInputFile myFile,string SavePath,string NewName)
315        {
316            myFile.PostedFile.SaveAs(SavePath+NewName);
317        }
318        #endregion
319
320        (10) 图片连接 string GetImg(string img,int height,int width,string memo)#region (10) 图片连接 string GetImg(string img,int height,int width,string memo)
321        public static string GetImg(string img,int height,int width,string memo)
322        {
323            return "<a href='" + img + "' target='_blank'><IMG alt='"+memo+"' src='" + img + "' width='"+width+"' height='"+height+"' border='0'></a>";
324        }
325        #endregion
326
327        (11) 判断图片格式和大小IsImg(HtmlInputFile myFile)#region (11) 判断图片格式和大小IsImg(HtmlInputFile myFile)
328        public static string IsImg( HtmlInputFile myFile , int size)
329        {
330            string temp="",FileName=myFile.PostedFile.FileName.ToLower();
331            if ( ( FileName.IndexOf( ".jpg" ) < 0 ) && ( FileName.IndexOf( ".gif" ) < 0 ) )
332                temp+= "上传文件的格式不正确!\\n";
333            if(myFile.PostedFile.ContentLength > size)
334                temp+= "上传文件过大！";
335            return temp;
336        }
337        #endregion        
338
339        (12)压缩图片 RarImage(HtmlInputFile upImage, string imgName, string savePath,int nWidth, int nHeight, string pre)  pre小图片前缀#region (12)压缩图片 RarImage(HtmlInputFile upImage, string imgName, string savePath,int nWidth, int nHeight, string pre)  pre小图片前缀
340        public static string RarImage(HtmlInputFile upImage, string imgName, string savePath,int nWidth, int nHeight, string pre)
341        {
342            string strReturn = "";        //返回值
343            System.Drawing.Image image=null, newimage=null;        //定义image类的对象
344            string imgType,imgPath;
345            double rarImgWidth,rarImgHeight,dScale;
346
347            imgPath= upImage.PostedFile.FileName;
348            imgType = imgPath.Substring(imgPath.LastIndexOf("."));
349
350            
351            if(pre =="")
352                pre = "sml_";
353            
354            upImage.PostedFile.SaveAs(savePath+"\\"+imgName+imgType);
355            image=System.Drawing.Image.FromFile(savePath+"/"+imgName+imgType);
356                
357            //确定压缩 宽 高
358            if(image.Width > image.Height)
359            {
360                if(image.Width > nWidth)
361                {
362                    dScale = image.Width/nWidth;
363                    rarImgWidth = nWidth;
364                }
365                else
366                {
367                    dScale = 1;
368                    rarImgWidth = image.Width;
369                }
370
371                rarImgHeight = image.Height/dScale;
372            }
373            else
374            {
375                if(image.Height > nHeight)
376                {
377                    dScale = image.Height/nHeight;
378                    rarImgHeight = nHeight;
379                }
380                else
381                {
382                    dScale = 1;
383                    rarImgHeight = image.Height;
384                }
385                    
386                rarImgWidth = image.Width/dScale;                
387            }
388                
389            newimage=image.GetThumbnailImage(Convert.ToInt32(rarImgWidth),Convert.ToInt32(rarImgHeight),null,new System.IntPtr());        //生成缩略图
390            FileStream myOutput = new FileStream(savePath+"/"+pre+imgName+imgType,FileMode.Create, FileAccess.Write, FileShare.Write);
391            newimage.Save(myOutput,GetImageType(imgType));        //把缩略图保存到指定的虚拟路径
392                
393            myOutput.Close();
394            image.Dispose();        //释放image对象占用的资源
395            newimage.Dispose();        //释放newimage对象的资源
396
397            strReturn = imgName+imgType;
398
399            return strReturn;
400        }
401
402        public static string RarImage(HtmlInputFile upImage, string fileName, string savePath,int nWidth, int nHeight)
403        {
404            return RarImage(upImage, fileName, savePath, nWidth, nHeight, "");
405        }
406        #endregion
407
408        (13) HTML转换 static string UnHtml（ object objResource)#region (13) HTML转换 static string UnHtml（ object objResource)
409        public static string UnHtml( object objResource )
410        {
411            if ( objResource == null )
412            {
413                return "";
414            }
415            string strResource = objResource.ToString();
416            //            strResource = strResource.Replace( "&", "&amp;" );
417            //            strResource = strResource.Replace( "<", "&lt;" );
418            //            strResource = strResource.Replace( ">", "&gt;" );
419            strResource = strResource.Replace( "\\n", "<br>" );
420            strResource = strResource.Replace( Convert.ToString( Convert.ToChar( 34 ) ), "&quot;" );
421            strResource = strResource.Replace( Convert.ToString( Convert.ToChar( 13 ) ), "<br>" );
422            strResource = strResource.Replace( Convert.ToString( Convert.ToChar( 32 ) ), "&nbsp;" );
423
424            return strResource;
425        }
426        #endregion
427
428        (14) 遍历目录返回目录大小GetDirSize(string StrDir)#region (14) 遍历目录返回目录大小GetDirSize(string StrDir)
429        private long GetDirSize(string StrDir)
430        {
431            long LngDirSize=0;
432            DirectoryInfo TmpDir=new DirectoryInfo(StrDir);
433
434            foreach(FileInfo file in TmpDir.GetFiles())
435            {
436                LngDirSize+=file.Length;
437            }
438
439            foreach(DirectoryInfo SubDir in TmpDir.GetDirectories())
440            {
441                LngDirSize+=GetDirSize(SubDir.FullName);
442            }
443
444            return LngDirSize;
445        }
446        #endregion
447
448        (15) 返回图片高度GetImageHeight (System.IO.Stream strSourceFile)#region (15) 返回图片高度GetImageHeight (System.IO.Stream strSourceFile)
449        public static int GetImageHeight (System.IO.Stream strSourceFile)
450        {
451            System.Drawing.Image SourceImage = System.Drawing.Image.FromStream( strSourceFile );
452            int height=SourceImage.Height;
453            SourceImage.Dispose();
454            return height;
455        }
456        #endregion
457
458        (16) 返回图片宽度GetImageHeight (System.IO.Stream strSourceFile)#region (16) 返回图片宽度GetImageHeight (System.IO.Stream strSourceFile)
459        public static int GetImageWidth (System.IO.Stream strSourceFile)
460        {
461            System.Drawing.Image SourceImage = System.Drawing.Image.FromStream( strSourceFile );
462            int width=SourceImage.Width;
463            SourceImage.Dispose();
464            return width;
465        }
466        #endregion
467
468        //(17) 对文件目录压缩 ZipDirectory(string DirectoryPath,string ZipFile)#region //(17) 对文件目录压缩 ZipDirectory(string DirectoryPath,string ZipFile)
469        //        public static void ZipDirectory(string DirectoryPath,string ZipFile)
470        //        {
471        //            ZipClass zip=new ZipClass();
472        //            string []FileProperties=new string[2];
473        //            FileProperties[0]=DirectoryPath;//待压缩文件目录
474        //            FileProperties[1]=ZipFile;  //压缩后的目标文件
475        //            zip.ZipFileMain( FileProperties );
476        //        }
477        //        #endregion
478        //
479        //        #region (18) 对文件目录解压 UnZipDirectory(string DirectoryPath,string ZipFile)
480        //        public static void UnZipDirectory(string DirectoryPath,string ZipFile)
481        //        {
482        //            UnZipClass unzip=new UnZipClass();
483        //            string []FileProperties=new string[2];
484        //            FileProperties[0]=ZipFile;//待压解文件
485        //            FileProperties[1]=DirectoryPath;  //解压后放置的目标目录
486        //            unzip.UnZip( FileProperties );
487        //        }
488        #endregion
489
490        (19) 加密string GetMd5Psw32( string str )#region (19) 加密string GetMd5Psw32( string str )
491        public static string Md5Psw32( string str )
492        {
493            return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str,"md5");
494        }
495        #endregion
496
497        (20) 检测SQL注入 void StrCheck(object s)#region (20) 检测SQL注入 void StrCheck(object s)
498        public static void StrCheck(object s)
499        {
500            string str= "'|;|and|(|)|--|exec|insert|select|delete|update|count|*|%|chr|mid|truncate|char|declare|drop|xp_cmdshell|exec master.dbo.xp_cmdshell|net user";
501            string ss="";
502            string[] str1=str.Split('|');
503        
504            if( s!=null )
505            {
506                ss=s.ToString().ToLower();
507                StrCheck1(ss);
508                for( int i=0;i<str1.Length;i++ )
509                {
510                    if(ss.IndexOf(str1[i])>0)
511                    {
512                        //insert(ss);
513                        System.Web.HttpContext.Current.Response.Write("参数错误！");
514                        System.Web.HttpContext.Current.Response.End();
515                    }
516                }
517            }
518            else
519            {
520                System.Web.HttpContext.Current.Response.Write("参数错误！");
521                System.Web.HttpContext.Current.Response.End();
522            }
523        }
524
525        public static void StrCheck2(object s)
526        {
527            string str= "'|;|and|(|)|--|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare|drop|xp_cmdshell|exec master.dbo.xp_cmdshell|net user";
528            string ss="";
529            string[] str1=str.Split('|');
530        
531            if( s!=null )
532            {
533                ss=s.ToString().ToLower();
534                
535                for( int i=0;i<str1.Length;i++ )
536                {
537                    if(ss.IndexOf(str1[i])>0)
538                    {
539                        System.Web.HttpContext.Current.Response.Write("参数错误！");
540                        System.Web.HttpContext.Current.Response.End();
541                    }
542                }
543            }
544            else
545            {
546                System.Web.HttpContext.Current.Response.Write("参数错误！");
547                System.Web.HttpContext.Current.Response.End();
548            }
549        }
550
551        public static void StrCheck1(string s)
552        {
553            if( !IsNum(s) )
554            {
555                System.Web.HttpContext.Current.Response.Write("参数错误！");
556                System.Web.HttpContext.Current.Response.End();
557            }
558        }
559        #endregion
560
561        (21) 输出硬盘文件，提供下载ResponseFile(HttpRequest _Request,HttpResponse _Response,string _fileName,string _fullPath, long _speed)#region (21) 输出硬盘文件，提供下载ResponseFile(HttpRequest _Request,HttpResponse _Response,string _fileName,string _fullPath, long _speed)
562        /**//// <summary>
563        ///  输出硬盘文件，提供下载
564        /// </summary>
565        /// <param name="_Request">Page.Request对象</param>
566        /// <param name="_Response">Page.Response对象</param>
567        /// <param name="_fileName">下载文件名</param>
568        /// <param name="_fullPath">带文件名下载路径</param>
569        /// <param name="_speed">_speed</param>
570        /// <returns>返回是否成功</returns>
571        public static bool ResponseFile(HttpRequest _Request,HttpResponse _Response,string _fileName,string _fullPath, long _speed)
572        {
573            try
574            {
575                FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
576                BinaryReader br = new BinaryReader(myFile);
577                try
578                {
579                    _Response.AddHeader("Accept-Ranges", "bytes");
580                    _Response.Buffer = false;
581                    long fileLength = myFile.Length;
582                    long startBytes = 0;
583
584                    int pack = 1024; //10K bytes
585                    //int sleep = 200; //每秒5次 即5*10K bytes每秒
586                    int sleep = (int)Math.Floor(1000 * pack / _speed) + 1;
587                    if (_Request.Headers["Range"] != null)
588                    {
589                        _Response.StatusCode = 206;
590                        string[] range = _Request.Headers["Range"].Split(new char[] {'=', '-'});
591                        startBytes = Convert.ToInt64(range[1]);
592                    }
593                    _Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
594                    if (startBytes != 0)
595                    {
596                        _Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength-1, fileLength));
597                    }
598                    _Response.AddHeader("Connection", "Keep-Alive");
599                    _Response.ContentType = "application/octet-stream";
600                    _Response.AddHeader("Content-Disposition","attachment;filename=" + HttpUtility.UrlEncode(_fileName,System.Text.Encoding.UTF8) );
601
602                    br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
603                    int maxCount = (int) Math.Floor((fileLength - startBytes) / pack) + 1;
604
605                    for (int i = 0; i < maxCount; i++)
606                    {
607                        if (_Response.IsClientConnected)
608                        {
609                            _Response.BinaryWrite(br.ReadBytes(pack));
610                            Thread.Sleep(sleep);
611                        }
612                        else
613                        {
614                            i=maxCount; 
615                        }
616                    }
617                }
618                catch
619                {
620                    return false;
621                }
622                finally
623                {
624                    br.Close();
625                    myFile.Close();
626                }
627            }
628            catch
629            {
630                return false;
631            }
632            return true;
633        }
634        #endregion
635
636    }
637}
638