YouuseMicrosoft.NETFrameworkv3.5tocreatea&
YouuseMicrosoft.NETFrameworkv3.5tocreateaMicrosoftASP.NETapplicationforCertkiller.com.
Thecodesegmentbelowiswrittentocreateaclient-script
ThisnewlycreatedscriptwillmakeuseofASP.NETAJAX.ThescriptwillalsoupdatethetextofalltheLabelcontrolsinthewebform.IthascometoyourattentionthattheLabelcontrolsarenotupdatedwhentheclientscriptfunctionistested.However，youreceivethe"’null’isnullornotanobject"JavaScripterrormessageinthebrowser.
Whatshouldyoudo？（）
正确答案：参考C
词条内容仅供参考，如果您需要解决具体问题
（尤其在法律、医学等领域），建议您咨询相关领域专业人士。