Video: DataAnnotations yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov lus piav qhia yog cov cwj pwm uas siv rau cov chav kawm lossis cov tswv cuab uas qhia txog kev siv tau cov cai, qhia meej tias cov ntaub ntawv yuav tshwm sim li cas, thiab teeb tsa kev sib raug zoo ntawm cov chav kawm. Qhov System. ComponentModel. Cov ntaub ntawv namespace muaj cov chav kawm uas siv los ua cov ntaub ntawv tus cwj pwm.
Ua kom pom qhov no, DataAnnotations MVC yog dab tsi?
Kev tshaj tawm. Cov ntaub ntawv yog siv los configure koj cov qauv chav kawm, uas yuav qhia txog cov feem ntau xav configurations. Cov ntaub ntawv kuj to taub los ntawm ib tug xov tooj ntawm. NET applications, xws li ASP. NET MVC , uas tso cai rau cov ntawv thov no siv tib cov lus piav qhia rau cov neeg siv khoom siv sab nraud.
Ib sab saum toj no, kev siv @data annotation yog dab tsi? Cov lus piav qhia yog tus txheej txheem ntawm labeling cov ntaub ntawv uas yuav ua tau ntau yam xws li duab, yees duab, suab los yog ntawv. Hauv paus cov ntaub ntawv annotation yog ua tiav siv ntau yam cuab yeej xws li bounding, semantic segmentation thiab lwm yam. Cov ntaub ntawv labeling feem ntau yog ua los cob qhia ntau yam computer vision qauv.
Tom qab ntawd, ib tug kuj yuav nug, yog dab tsi yog kev siv system ComponentModel DataAnnotations?
ComponentModel . Cov ntaub ntawv namespace muab cov chav kawm attribute uas yog siv los txhais metadata rau ASP. NET MVC thiab ASP. NET cov ntaub ntawv tswj.
Dab tsi yog cov ntaub ntawv annotation validator attributes hauv MVC?
Coj kom zoo dua ntawm Cov lus piav qhia Model Binder los ua kev lees paub hauv ASP. NET MVC daim ntawv thov. Qhov zoo ntawm kev siv lub Cov ntaub ntawv Annotation validators yog tias lawv pab koj ua kev lees paub tsuas yog ntxiv ib lossis ntau dua yam ntxwv - xws li Yuav Tsum Tau lossis StringLength tus cwj pwm - mus rau ib qho khoom vaj khoom tsev.
Pom zoo:
System ComponentModel DataAnnotations yog dab tsi?
Qhov system. ComponentModel. DataAnnotations Namespace. Qhov System. DataAnnotations namespace muab cov chav kawm uas yog siv los txhais metadata rau ASP.NET MVC thiab ASP.NET cov ntaub ntawv tswj
W3c yog dab tsi Whatwg yog dab tsi?
Lub Web Hypertext Application Technology Working Group (WHATWG) yog ib lub zej zog ntawm cov neeg nyiam hloov kho HTML thiab lwm yam technologies. WHATWG tau tsim los ntawm cov tib neeg los ntawm Apple Inc., Mozilla Foundation thiab Opera Software, ua tus neeg muag khoom Web browser, hauv 2004
Cell referencing yog dab tsi thiab dab tsi yog qhov sib txawv ntawm kev xa tawm?
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