Amamephu weDynamic ane-Visual Basic 9
Inguqulo ye-2008 ye-Visual Basic, ibonakala ingqubuzana ephelele phakathi kwamakhono akhe aphakeme kanye nesikhathi sokuphila okucatshangelwe.
Ku-athikili eshicilelwe ku msdn Magazine kumagazini walo kaDisemba 2007, UScott Wisniewski, i-software design engineer e-Microsoft, ibonisa umsebenzi oyingqayizivele njengesifundo mayelana nendlela yokudweba amamephu usebenzisa i-Visual Basic. Lokhu akubonisi nje ezinye zezici ezikhangayo kakhulu ze-Visual Basic, kodwa futhi inikeza isibonelo sokusebenza esingasetshenziswa njengesisekelo sokwengeza ezinye izinhlelo zokusebenza ezithuthukisiwe.
Ekuqaleni kwalokhu okuthunyelwe sakhomba ukuthi lokhu kuyaphikisana nalokho abaningi ababekucabanga kudala, ukuthi iVisual Basic yayisentanjeni yokufa. Isiphakamiso salesi simiso sincike kulowo mkhuba osile we-Microsoft wokushiya amapulatifomu ukuze agcine ukuthengisa kwawo; ngemuva kokuphusha kwakhe ngempumelelo ebheke kuNET noC (Sharp) ngokuphelelwa yithemba kwakhe ukuncintisana neJava.
Siyazi ukuthi ukulinganiselwa okulethwe yi-Visual Basic, ekukhetheni kakhulu ekuthuthukisweni kumapulatifomu e-Windows, kuzofanele kuthathelwe indawo lapho imvelo ye-Win32x ifa, iMicrosoft ingena ngokuqinile .NET futhi iguqule isu layo lezincwadi elinamandla (i-dll) lohlaka. ngaphansi kolayini olulethwa yi-C ++; ngakho-ke bekulindeleke ukuthi i-Visual Basic izokufa ngengozi ... kubonakala sengathi kuzokwenzeka esikhathini eside, lapho iWindows Vista ithatha izintambo (unyaka ka-2014 :))
Uma umlando uziphinda, i-Visual Basic ne .NET kuzokwenzeka njengoba nje iMicrosoft yenze neFox ukwandisa impilo ye-SQL ne-Access. Yize manje umncintiswano ungekho njengoba wawunjalo ngaleso sikhathi, ukuthambekela kokuklanywa kwama-multilayer nokuhlanganiswa kwewebhu kungama-detonators azokwenza i-Visual Basic iwe noma imaski.
Kulungile ukubheka ukuthuthukiswa okuhlongozwa nguScott, nakuba sincoma funda idokhumenti egcwele Sizokwenza ezinye iziphakamiso ukuthi ngobukhulu beposi ziphoqele ukulula.
I-1. Ukusetshenziswa kwe-WPF imvelo
Masivume, i-athikili ichazwe kahle kakhulu futhi ifinyeziwe, ikakhulukazi uma ikhredithi ingeyona eyomhleli kodwa ekanjiniyela ngokwakhe; ichaza ukuthi imvelo ye-wPF (Windows Presentation Foundation) ingahumusha kanjani ebesikwazi “njengezinto”, ngaphansi komqondo obanzi we-"geometries", engahlotshaniswa nekhodi eguqukayo... "ukubuka" njengamamephu akhanyayo, noma i-geometry yakhiwa kabusha ngokuphazima kweso kusuka kusizindalwazi.
I-2. Isibonelo sezinjongo zohlelo lokusebenza
Umbhali uyaqhubeka echaza ukuthi wamisa kanjani (wabuyisela futhi) indlela yokubonisa idatha… enobuchule kakhulu kuye 
ukukhulelwa Ibalazwe, isifunda, i-polygon yonke ngaphansi kokunciphisa ukuxhomeka nokukhathazeka ngomqondo wokuphinda uvuselele ngokoqobo ukuthi iziphi izicelo zendawo esezikwenzile ekusebenzeni okuyisisekelo okufana nokusondeza, ipan, i-xtent. Singakhathazeka uma amapulatifomu amasha emephu efuna ukwenziwa ngokususelwa kule misebenzi, ngenxa yemfucuza ebingaba khona nge-pure code reinvention, uma kubhekwa ukuthi le nsimu kunokuhlelwa kwayo idinga ukujwayela imiqondo ebhalwe kahle ye-cartographic, geodetic futhi manje ye-geomatic kodwa isikhathi ngasinye ufuna ukuvuselela izinhlelo azinakwa. Ngakho-ke asigxeki ubuciko bokusungula, kunalokho sithatha izigqoko zethu siye kothile othuthukisa okuthile futhi afuna ukukuhlanganyela ngokukhululekile, kepha sikhumbula isidingo esiseduze sokumisa nokuhlela lokho osekuzuziwe.
Ngiphakamisa inkulumo engayizwa esikhathini esidlule emhlanganweni:
... sifuna ukwenza i-ArcView Brasileiro ... ho ...
I-3. Ukusetshenziswa kwamaKlasi Amamephu
Lapha, ngendlela yokudala kakhulu, umbhali uxhumanisa amapholigoni nezindinganiso zikahulumeni zaseNyakatho Melika ezaziwa ngokuthi i-FIPS, nakuba lezi zisetshenziselwa izinjongo "zezibalo", kithina kubonakala sengathi umfana ubheme umsebenzi omuhle. Ithi kulungile, izakhiwo "zesifunda" zizohleleka ngaphandle.
I-4. Ukusingatha idatha ye-XML
Ekugcineni, ngicabanga ukuthi ngemva kokucabanga nokuphuza ikhofi unqume ukuya (cishe ungenakugwemeka) xml kanye nesakhiwo se-LinQ ukuze ungenise idatha kanye nejometri ngendlela ehlelekile, nakuba lapha ungena ekukhawulweni kwale nsimu eyinkimbinkimbi, i-geodesy. Lokhu kubonisa ukuthi ukubuyisela kabusha kulo mqondo kuyingozi, uma inhloso yomphumela ingacacile kakhulu; kithi kubonakala sengathi umsebenzi awenzile ngezinjongo “bona imiphumela” kuhle kakhulu, into ekhathazayo yilapho lo mphumela ubonwa yisikhulu emhlanganweni bese sithi:
"Nginokuxhumana nabaninimasheya abazimisele ukutshala imali kulesi sicelo ukuze senze uhlelo lwemephu olungasetshenziswa eMega Institute of Territorial Management..."
bese beza, bagcina baphinde baphinda benzisa okuthile ... uScott akuvumayo ngolimi lakhe olungeyona i-geomatic:
"Kumajiyometri ayinkimbinkimbi, engikwenzile kwaba ukwenza izibalo ezimbili, okokuqala ngakhombisa eyodwa ngemuva ukuze leyo engaphambili ingambozwa futhi ngaleyo ndlela ibukeke njengesiqhingi..."
I-5. Iziphetho ezidingekayo
Okokugcina, kubangane bethu bohlelo thina sincoma lo mbhalo, ngoba kukhombisa ukuthi kungenzeka kanjani ukwakha izinhlelo zemephu ngaphandle kokusebenzisa amakhodi weqembu lesithathu ... sinikeza umbhali udumo ngomusa wakhe nokucaca kokuphetha ekugcineni kulokho akulindele kulokhu:
Empeleni, usebenzisa i-Visual Basic, i-WPF, i-Expression Blend ne-LINQ Ngikwazi ukuthuthukisa uhlelo lokusebenza olukwazi ukubuyisela kabusha izibukiso ezibonakalayo eziyinkimbinkimbi kusuka emzimbeni wedatha okhona. Lolu hlelo lokusebenza lungelula kakhulu ukuze lubone idatha kusukela eminyakeni ehlukene noma ukuphatha idatha ngezindlela ezahlukene. Yonke ikhodi itholakala ngokulanda kwalesi sihloko, kanjalo uzizwe ukhululekile ukuzama futhi ubone ukuthi ungayithola.
Nge: Ama-Geomusings
