@mfrz6

Please create a codepen( very simple to do by extending a Quasar Doc example) to demo your problem so the people here can help you better.

btw: I don’t think it’s a good idea to use both v-model and :val on the same component

<q-checkbox v-model="selectModel" :val="scope.opt.value" />

@mfrz6 Can you give me the settings (props) you used to cause this issue? I can’t seem to replicate it on my own.

@mfrz6

Looks like a bug to me. I would post a github issue.

@dobbel I did not understand what you meant

@mfrz6 use Promises https://codepen.io/metalsadman/pen/LYZZyGy?editors=1010

@mfrz6

Miladi is that the same as Gregorian ?

I found this library:

https://github.com/kbwood/calendars

and a thread to how to use convert:

https://stackoverflow.com/questions/24989984/convert-persian-date-to-julian-or-gregorian-with-keith-wood-calendars

and this:

http://keith-wood.name/calendars.html