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UNIVERSITETI I PRISHTINS

FAKULTETI I INXHINIERIS ELEKTRIKE DHE KOMPJUTERIKE

PUNIM DIPLOME ASP.NET KONTROLLAT

Mentori Kandidati Dr.Sc.Edmond BEQIRI Ardian IBRAJ

Prishtin, Shtator 2004

Prmbajtja

Hyrje---------------------------------------------------------------------------------- 4

HTML Server Kontrollat--------------------------------------------------------- 5 Koncepti i Server kontrollave--------------------------------------------------------------------6

Rndsia dhe kuptimi i HTML Server Kontrollave ------------------------------------------7

Kontrolla HTMLAnchor--------------------------------------------------------------------------9

Kontrolla HTMLButton------------------------------------------------------------------------- 11

Kontrolla HTMLForm -------------------------------------------------------------------------- 13

Kontrolla HTMLGeneric ----------------------------------------------------------------------- 14

Kontrolla HTMLSelect ------------------------------------------------------------------------- 14

Kontrolla HTMLTextArea --------------------------------------------------------------------- 15

Kontrolla HTMLImage ------------------------------------------------------------------------- 16

Kontrolla HTMLInputButton ------------------------------------------------------------------ 17

Kontrolla HTMLInputCheckBox-------------------------------------------------------------- 18

Kontrolla HTMLInputRadioButton----------------------------------------------------------- 18

Kontrolla HTMLInputText--------------------------------------------------------------------- 20

Kontrolla HTMLInputImage------------------------------------------------------------------- 20

Kontrolla HTMLInputFile---------------------------------------------------------------------- 20

Kontrolla HTMLInputHidden ----------------------------------------------------------------- 21

Kontrolla HTMLTable -------------------------------------------------------------------------- 22

Kontrolla HTMLTableRow -------------------------------------------------------------------- 23

Kontrolla HTMLTableCell--------------------------------------------------------------------- 23

ASP Server Kontrollat ----------------------------------------------------------- 25 Web kontrollat themelore (Basic Web Controls) ------------------------------------------- 26

Label ............................................................................................................................................. 26 TextBox ........................................................................................................................................ 26 Buttons .......................................................................................................................................... 26 CheckBox...................................................................................................................................... 27 ListControls .................................................................................................................................. 27 HyperLink..................................................................................................................................... 27 Image ............................................................................................................................................ 28 Panel ............................................................................................................................................. 28 RadioButton .................................................................................................................................. 28 Table ............................................................................................................................................. 28 Xml ............................................................................................................................................... 29

Prdorimi i ngjarjeve t kontrollave----------------------------------------------------------- 29

Kontrollat Validuese-------------------------------------------------------------- 32 Kontrollat Validuese si Web Form Kontrolla ----------------------------------------------- 32

Kontrollat Validuese ---------------------------------------------------------------------------- 32

Kontrolla RequiredFieldValidator------------------------------------------------------------- 33

Kontrolla RegularExpressionValidator ------------------------------------------------------- 34

Kontrolla CompareValidator------------------------------------------------------------------- 35

Kontrolla RangeValidator ---------------------------------------------------------------------- 35

Kontrolla CustomValidator--------------------------------------------------------------------- 37

Kontrolla ValidationSummary----------------------------------------------------------------- 38

Custom Kontrollat ---------------------------------------------------------------- 39 Custom Kontrolla ( e nnkuptuar ) e plot --------------------------------------------------- 42

Atributet e Custom kontrollave ---------------------------------------------------------------- 43

Metoda e Renderimit (ang. Render)----------------------------------------------------------- 44

Krijimi i Custom kontrollave t derivuara --------------------------------------------------- 46

Krijimi i Custom Kontrollave t prbra ----------------------------------------------------- 49

Krijimi i kontrolls s prbr Numrues_i_Librave ---------------------------------------- 54

Interfejsi INamingContainer ------------------------------------------------------------------- 55

Krijimi i kontrolls s prbr Lista_e_Krkesave_ t_ Librave ------------------------- 56

Atributet ControlBuilder dhe ParseChildren------------------------------------------------- 57

Renderimi ----------------------------------------------------------------------------------------- 58

Prmbyllje -------------------------------------------------------------------------- 61

Summary---------------------------------------------------------------------------- 62

SHTOJCA A ----------------------------------------------------------------------- 63

SHTOJCA B------------------------------------------------------------------------ 64

Literatura:-------------------------------------------------------------------------- 66

Hyrje

ASP.NET-i (Active Server Pages), sht teknologji pr t zhvilluar web aplikacione dhe ofron zgjidhjen shum t nevojshme pr nj problem shum t vjetr- kontrollat e HTML formave. N verzionet para .Net-it programert e ASP-s duhej q t kalonin her n HTML her n ASP pr t ofruar ndrveprim n mes web faqeve. Pra thn shkurt ASP nuk ofronte shkall t lart t ndrveprimit. Me shfaqjen e ASP server kontrollave, e gjith kjo ka ndrruar. Kshtu ASP.NET bn t mundur q t kryhet validimi n kohn reale dhe paraqitja e mesazheve t gabimit nga faqja kur sht tejkaluar ndonj fush e krkuar. Gjithashtu ASP.NET bn t mundur zvendsimin e t dhnave n faqe pa e detyruar shfrytzuesin q ti qaset ndonj faqe tjetr apo t ristartoj komplet faqen. Gjat zhvillimit t web formave n ASP.NET, mund t prdoren kto lloje t kontrollave:

HTML Server kontrollat me t cilat manipulohet n ann e serverit. Para se t drgohet forma n ann e klientit makina e ASP-s i konverton ato n HTML elementet prkatse. Kto kontrolla jan t prfshira n nejmspejsin System.Web.UI.HtmlControls.

ASP Server kontrollat (njihen edhe si Web Kontrolla apo ASP.NET Web

Form kontrolla) Kto jan kontrolla t reja t zhvilluara nga Microsofti. Ato i kan t prfshira nj numr t madh t veqorive si dhe nj grup me vetit standarde. N HTML dhe .aspx, kto kontrolla referohen me prefiksin asp si p.sh. asp:Label, asp:Button, asp:TextBox etj. Prveq server kontrollave t tipit t forms siq jan: labelat, butonat, apo lista rnse (ang. dropdown ) jan edhe nj numr i kontrollave speciale si kontrollat Calendar dhe AdRotator. Makina ASP i konverton kto kontrolla n HTML kontrolla standarde para se t drgohet faqja te klienti. Kto Web server kontrolla gjenden n nejmspejsin System.Web.UI.WebControls

Kontrollat e Validimit (Validation Controls) - ky grup i kontrollave ofron mundsin e zhvillimit t shpejt t aplikacioneve (Rapid Application Development RAD). Prdoren pr t kontrolluar n mnyr automatike t dhnat hyrse t shfrytzuesit. Kto kontrolla gjenden n nejmspejsin System.Web.UI.WebControls

Custom kontrollat ASP.NET-i ofron mundsin e zgjerimit t kontrollave

ekzistuese pr t shtuar funksionalitete sipas nevojs. Ekzistojn dy verzione t Custom kontrollave: Web User kontrollat dhe Web Custom kontrollat. Dallimi ky ndrmjet tyre qndron n at se Custom kontrollat kompajlohen n fajlla .dll dhe pastaj prdoren njlloj si prdoren t gjitha server kontrollat. Web User kontrollat jan t lehta pr tu zhvilluar, dhe ruhen si fajlla me prapashtesn .ascx. Kto ruhen t kompajluara.

Pjesa e par

HTML Server Kontrollat

Web Aplikacionet jan aplikacione q mund t zhvillohen n dy pjes: pjesa e klientit dhe pjesa e serverit. Pjesa e klientit n prgjithsi ka t bj me pjesn statike t programimit, kurse ktu do t trajtohet pjesa e serverit e cila edhe mund t quhet pjes dinamike. I gjith koncepti i ksaj pjese sqarohet thjesht me at se nj HTML dokument prdor protokollin HTTP (HyperText Transfer Protocol) pr tiu qasur nj Web Serveri. sht e qart se kur futet nj URL (Universal Resource Locator) pr nj faqe n browser, ai do t drgohet si nj mesazh n H