Javascript 检查JsonSerializeObject是否为空
如何检查是否执行以下操作:Javascript 检查JsonSerializeObject是否为空,javascript,asp.net,json,Javascript,Asp.net,Json,如何检查是否执行以下操作: List<int> output = JsonConvert.SerializeObject(email.EmailProgramGroups.ConvertAll<int>(x => x.EmailProgramGroupId)) if(output.count > 0) { //.... } 您是否可以执行类似var output=JsonConvert.SerializeObjectcollectionWrappe
List<int> output = JsonConvert.SerializeObject(email.EmailProgramGroups.ConvertAll<int>(x => x.EmailProgramGroupId))
if(output.count > 0) {
//....
}
您是否可以执行类似var output=JsonConvert.SerializeObjectcollectionWrapper。。。。。;然后检查输出是否为null或空。不太确定您的意思是什么,请将if表达式放入变量中,然后检查该变量-if isnullorempty?我尝试了一下,但只要它碰到JsonConvert.serialize。。。。它抛出了错误
List<int> output = JsonConvert.SerializeObject(email.EmailProgramGroups.ConvertAll<int>(x => x.EmailProgramGroupId))
if(output.count > 0) {
//....
}