The question was previously asked in the link below.
The answer you gave to the post was the absolutely wrong answer. The Islamic calendar available in the syncfusion library is related to Hijri Calendar and the Jalali calendar is very different from the Hijri calendar. Is there any way to use Persian calendar (Jalali)?
Is it possible that in data grid when the date column is filtered to be a filter that uses the third-party data picker component?
Is there any chance to have a Persian calendar in the next version?