HTML input file selection event not firing upon se
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: IsthereanychancetodetecteveryfileselectiontheusermadeforanHTMLinputoftypefileelement? Thiswasaskedmanytimesbefore,buttheusuallyproposedonchangee...
Unique Constraint in Entity Framework Code First
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Question Isitpossibletodefineauniqueconstraintonapropertyusingeitherthefluentsyntaxoranattribute?Ifnot,whataretheworkarounds? Ihaveauserclasswi...
How do you test running time of VBA code?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: IstherecodeinVBAIcanwrapafunctionwiththatwillletmeknowthetimeittooktorun,sothatIcancomparethedifferentrunningtimesoffunctions? 回答1: Unlessyourfu...
How to submit a form with JavaScript by clicking a
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: InsteadofasubmitbuttonIhavealink: <form> <ahref=#>submit</a> </form> CanImakeitsubmittheformwhenitisclicked? 回答1: T...
How to detect if a variable is an array
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Whatisthebestde-factostandardcross-browsermethodtodetermineifavariableinJavaScriptisanarrayornot? Searchingthewebthereareanumberofdifferentsugge...