Cov txheej txheem:
Video: Dab tsi yog drop-down box hauv HTML?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
HTML Web DevelopmentFront End Technology. Nrog HTML , koj tuaj yeem tsim qhov yooj yim poob - lis ntawm cov khoom kom tau txais cov neeg siv nkag rau hauv HTML daim ntawv. Ib xaiv lub thawv kuj hu poob - hauv qab kem muab anoption rau lis ntau yam kev xaiv nyob rau hauv daim ntawv ntawm poob - lis , los ntawm qhov twg tus neeg siv tuaj yeem xaiv ib qho kev xaiv lossis ntau dua.
Ua li no, kuv yuav ua li cas thiaj tsim tau cov ntawv qhia zaub mov hauv HTML?
Yuav Ua Li Cas Sau Daim Ntawv Teev Npe hauv daim ntawv HTML5
- Tsim lub ntsiab ua ntej. Lub thawv rau daim ntawv teev npe yog ib qho khoom.
- Muab cov khoom xaiv ib tus ID.
- Ntxiv ib qho kev xaiv rau lub caij xaiv.
- Muab txhua qhov kev xaiv muaj nqis.
- Qhia cov ntawv uas tus neeg siv yuav pom ntawm cov ntawv cim npe.
- Ntxiv ntau txoj kev xaiv raws li koj xav tau.
Ib yam li ntawd, koj ua li cas los tsim ib daim ntawv teev npe? Txhawm rau ntxiv cov npe hauv qab no rau ib daim ntawv, ua cov hauv qab no:
- Tsim cov npe hauv hlwb A1:A4.
- Xaiv lub xov tooj E3.
- Xaiv Validation los ntawm cov ntawv qhia zaub mov.
- Xaiv Daim Ntawv Teev Npe los ntawm Tso Cai xaiv cov npe teev tseg.
- Nyem rau qhov chaw tswj thiab luag kom pom cov cellA1:A4.
- Xyuas kom tseeb tias qhov kev xaiv hauv-Cell Dropdown raug kuaj xyuas.
- Nyem OK.
Ib yam li ntawd ib tug yuav nug, dab tsi yog lub hom phiaj ntawm daim ntawv teev npe?
A poob - lis (ua luv poob - nqes ; kuj hu ua a poob - downmenu , poob zaub mov , rub- lis , picklist) yog agraphical control element, zoo ib yam li a lis box , uas tso cai rau tus neeg siv xaiv ib tus nqi los ntawm a lis . Thaum a poob - lis yog inactive, nws qhia ib qho nqi.
Koj hu dab tsi dropdown menus?
Kuj hu ua a poob - nqes zaub mov , a zaub mov ntawm cov lus txib lossis cov kev xaiv uas tshwm thaum koj xaiv ib yam khoom nrog tus nas. Yam khoom koj xaiv isgenerally nyob rau sab saum toj ntawm cov zaub screen, thiab cov zaub mov zoo nkaus li hauv qab nws, zoo li yog koj tau rub nws nqes.
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