IamdevelopedaprojectinVisualstudioanddatabasesqlserver.Myquestioniswhenclientinstallasetup,theprojectwillexpireafter1year.
解决方案IfyouwanttomakeyourapplicationtoexpireyoushouldcheckthisarticleonCodeProject.
YoucanuseRegistryforthispurpose.Whentheapplicatputer'sregistrythatyoudefineinyourapplication.Iftheregistrykeydoesnotexist,setthevaluetocurrentdate.Everytimewhenyourapplicationloads,checkforthevalueofthisregistrykey.Ifitislessthanoneyear,proceedwiththeapplicationelsedisplaythemessagetouser.
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