Method for checking external links

Private   Void  Check (){  Int Currentnum = Currentnum;  If (Currentnum> = Totalcount ){  Return  ;} Datagridviewrow row = This  . Maid [currentnum]; row. cells [  "  ID " ]. Style. backcolor = Color. Green;  String Url = row. cells [ "  URL  "  ]. Value. tostring ();  String Title = row. cells [ "  Title  "  ]. Value. tostring (); Title = System. Web. httputility. htmlencode (title); WebClient Client =New  WebClient (); client. Encoding = Encoding. utf8; Uri URI = New  Uri (URL); system. Io. Stream stream = Null  ;;  Try  {Stream = Client. openread (URI );}  Catch  (System. net. webexception ex ){ If (EX. Status = Webexceptionstatus. protocolerror) Row. defaultcellstyle. backcolor = Color. Yellow;  If (EX. Status = Webexceptionstatus. connectfailure) Row. defaultcellstyle. backcolor = Color. Yellow;  If (EX. Status = Webexceptionstatus. Timeout) Row. defaultcellstyle. backcolor = Color. Yellow;  If (Stream! = Null  ) Stream. Dispose (); client. Dispose ();  Return  ;}  Using (System. Io. memorystream MS = New  System. Io. memorystream ()){  Int Len = 0  ;  Byte [] Buff = New   Byte [ 512  ];  While (LEN = stream. Read (buff, 0 , 512 )> 0  ) {Ms. Write (buff,  0  , Len );}  String Content = System. Text. encoding. utf8.getstring (Ms. toarray (); match charsetmatch = RegEx. Match (content, " <Meta ([^ <] *) charset = \"? '? ([^ <] *) \"  " , Regexoptions. ignorecase | Regexoptions. multiline );  String Encoding = charsetmatch. Groups [ 2  ]. Value;  If ( String  . Isnullorempty (encoding) {Encoding = Client. responseheaders [httpresponseheader. contentencoding];}  If (!String . Isnullorempty (encoding) & encoding. tolower ()! = "  UTF-8  "  ){  If (Encoding. tolower (). Contains ( "  Gzip  "  )){  Using (System. Io. memorystream memory = New System. Io. memorystream () {Ms. Position = 0l  ;  Using (Gzipstream = New  Gzipstream (MS, compressionmode. Decompress )){  While (LEN = gzipstream. Read (buff, 0 , 512 )> 0 ) {Memory. Write (buff,  0  , Len) ;}} content = System. Text. encoding. utf8.getstring (memory. toarray ());}}  Else  {  Try  {  If (Encoding. tolower (). Contains ( " GBK  "  ) Encoding = "  Gb2312  "  ; Content = System. Text. encoding. getencoding (encoding). getstring (Ms. toarray ());}  Catch  {}} Match = Titleregex. Match (content ); If (! Match. Success) {row. defaultcellstyle. backcolor = Color. fromargb ( 255 , 200 , 200 , 200  );}  Else   If (Content. indexof (title) < 0  ) {Row. defaultcellstyle. backcolor = Color. fromargb ( 255 , 200 , 200 , 200  );}}  If (Stream! = Null  ) Stream. Dispose (); row. cells [  "  ID  " ]. Style. backcolor = color. fromargb ( 255 , 108 , 226 ,108  );} 

Recently, we need to check the work of The promotion staff. If there are more than 500 external links per day, the manual check is really not harmonious. Write a checkProgram, Under backup.