Hangfire: how to validate cron expression befor run a job

[osmanrahimi]

Hi .
I have some jobs but I don't set Interval in hard code and Client Can Set it in Application . now I have a Problem about Cron expression . I wanted to use Quartz Library to validate it but Hangfire accpet 5 char for Cron and Quartz has 7 part in cron expression .
How can I validate Cron Expression befor assign to Recuuing Job .
Thank you very much .

[pieceofsummer]

Why don't you just use NCrontab library Hangfire currently uses for cron expressions?

[osmanrahimi]

I didn't know Hangfire Uses NCrontab . I do that by Ncrontab . it has Parse and TryParse method to Check Cron Expression .
thank you