YouuseMicrosoft.NETFrameworkv3.5tocreatea&

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YouuseMicrosoft.NETFrameworkv3.5tocreateaMicrosoftASP.NETapplicationforCertkiller.com.

Thecodesegmentbelowiswrittentocreateaclient-script

ThisnewlycreatedscriptwillmakeuseofASP.NETAJAX.ThescriptwillalsoupdatethetextofalltheLabelcontrolsinthewebform.IthascometoyourattentionthattheLabelcontrolsarenotupdatedwhentheclientscriptfunctionistested.However,youreceivethe"’null’isnullornotanobject"JavaScripterrormessageinthebrowser.

Whatshouldyoudo?()

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参考C

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