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Practical Database Programming With Visual C#.NET- P4

Tham khảo tài liệu 'practical database programming with visual c#.net- p4', công nghệ thông tin, cơ sở dữ liệu phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 4.4 LINQ to Objects 173 indexes of the contents of a directory tree. A simple string search is performed in this example. However more complex types of pattern matching can be perfarmudwitb a regular expression. Crcatcancw C nsolcprojccl.namcdQucryConl.cnl.sI.INQ and thenopenthe code windowof rhisnewproject an inter thecones shown inI igLirc4.28 inlothe code window ofthisprojnet. Let s take eclosentookattnirnieceofcodnthnee howitworks. A. . string jen UartFoHergsa.atedmdt.w.rali.eoftoK.bje00 E tlo detoh path ofto n isiei ntrej.tN. j T efe8 in which all files of the Visual Studio.NET 2008 are installed. You can mo2ke t.Mv. athHUr a instafit d yena Viscid SluCi o.NET 2gj o Or clibcrcnt folder in your computer. B. An IEnumetable T rnterfaceisuend 0 d finethedetatepe tt tlsc qeeriedfilesfileOtat s The real data typo fd lihdhereisSehtemnO.FtteInro weetqi isutedVo rrplscelhe o ominni type T. Thnmqthod GqtFtres is executed to open and access the queried files with the file path osrhrnqjmont of thismnnOodi C. The querp crite2ta Vstnet OTudio .wlechih a heywordto Ve r ar heO he t jisj. iini y.it assigned tea sfrif olhec r arcniTerrnthatdallbeijtedeini2lej invite qite rypi oec ss. D. The I.INC.qeo 5 .t ateaind hhemttiafizehwttnfour clauses from let where and select. The rangp t erialOn ttn stc.ocecdliomtlieopen d lesfileLigt.ThemnthodG tFilnTextyt will be exeoutoOtoso a l cnif co ni v tf of thtmotchnO Ulesurin tjin leg dause.Tho where claptesareusedhere tn mtertOomotahedneegwttnboth anextension.htmand o keyword VisualStuOto iF tha Xlename. E. The Connole s ne edl lnclh menOae inyeecutedtoindieeta th Wihetellowlnqmdtehed filea contain thegnarcOnO Xeyword VituatntuOid to thin ti Ii naaner F. The LINeti u i ie oniauted to 0Ctiip af hjer that have a file name that containg the keywptO Virenil Studio ana th tearcXedfitesere c i y edl utitg tdrmdlhiiti Cotgolc. Vrit.alrthl . G. The purppte a llnuc two hoOior lined g v tIIow tec it to ton this io cct in e Dehhggm mode. H. The b .