shadcn ui calendar custom year and month dropdown

calendar.tsx

"use client"

import * as React from "react"
import { buttonVariants } from "@/components/ui/button"
import { ScrollArea } from "@/components/ui/scroll-area"
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
import { cn } from "@/lib/utils"
import { ChevronLeft, ChevronRight } from "lucide-react"
import { DayPicker, DropdownProps } from "react-day-picker"

export type CalendarProps = React.ComponentProps<typeof DayPicker>

function Calendar({ className, classNames, showOutsideDays = true, ...props }: CalendarProps) {
  return (
    <DayPicker
      showOutsideDays={showOutsideDays}
      className={cn("p-3", className)}
      classNames={{
        months: "flex flex-col sm:flex-row space-y-4 sm:space-x-4 sm:space-y-0",
        month: "space-y-4",
        caption: "flex justify-center pt-1 relative items-center",
        caption_label: "text-sm font-medium",
        caption_dropdowns: "flex justify-center gap-1",
        nav: "space-x-1 flex items-center",
        nav_button: cn(
          buttonVariants({ variant: "outline" }),
          "h-7 w-7 bg-transparent p-0 opacity-50 hover:opacity-100"
        ),
        nav_button_previous: "absolute left-1",
        nav_button_next: "absolute right-1",
        table: "w-full border-collapse space-y-1",
        head_row: "flex",
        head_cell: "text-muted-foreground rounded-md w-9 font-normal text-[0.8rem]",
        row: "flex w-full mt-2",
        cell: "text-center text-sm p-0 relative [&:has([aria-selected])]:bg-accent first:[&:has([aria-selected])]:rounded-l-md last:[&:has([aria-selected])]:rounded-r-md focus-within:relative focus-within:z-20",
        day: cn(buttonVariants({ variant: "ghost" }), "h-9 w-9 p-0 font-normal aria-selected:opacity-100"),
        day_selected:
          "bg-primary text-primary-foreground hover:bg-primary hover:text-primary-foreground focus:bg-primary focus:text-primary-foreground",
        day_today: "bg-accent text-accent-foreground",
        day_outside: "text-muted-foreground opacity-50",
        day_disabled: "text-muted-foreground opacity-50",
        day_range_middle: "aria-selected:bg-accent aria-selected:text-accent-foreground",
        day_hidden: "invisible",
        ...classNames,
      }}
      components={{
        Dropdown: ({ value, onChange, children, ...props }: DropdownProps) => {
          const options = React.Children.toArray(children) as React.ReactElement<React.HTMLProps<HTMLOptionElement>>[]
          const selected = options.find((child) => child.props.value === value)
          const handleChange = (value: string) => {
            const changeEvent = {
              target: { value },
            } as React.ChangeEvent<HTMLSelectElement>
            onChange?.(changeEvent)
          }
          return (
            <Select
              value={value?.toString()}
              onValueChange={(value) => {
                handleChange(value)
              }}
            >
              <SelectTrigger className="pr-1.5 focus:ring-0">
                <SelectValue>{selected?.props?.children}</SelectValue>
              </SelectTrigger>
              <SelectContent position="popper">
                <ScrollArea className="h-80">
                  {options.map((option, id: number) => (
                    <SelectItem key={`${option.props.value}-${id}`} value={option.props.value?.toString() ?? ""}>
                      {option.props.children}
                    </SelectItem>
                  ))}
                </ScrollArea>
              </SelectContent>
            </Select>
          )
        },
        IconLeft: ({ ...props }) => <ChevronLeft className="h-4 w-4" />,
        IconRight: ({ ...props }) => <ChevronRight className="h-4 w-4" />,
      }}
      {...props}
    />
  )
}
Calendar.displayName = "Calendar"

export { Calendar }

globals.css

/* add this snippet in your globals.css file */

.rdp-vhidden {
  @apply hidden;
}

sample-date-picker.tsx

"use client"

import * as React from "react"
import { Button } from "@/components/ui/button"
import { Calendar } from "@/components/ui/calendar"
import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover"
import { cn } from "@/lib/utils"
import { format } from "date-fns"
import { CalendarIcon } from "lucide-react"

export function SampleDatePicker() {
  const [date, setDate] = React.useState<Date>()

  return (
    <Popover>
      <PopoverTrigger asChild>
        <Button
          variant={"outline"}
          className={cn("w-[240px] justify-start text-left font-normal", !date && "text-muted-foreground")}
        >
          <CalendarIcon className="mr-2 h-4 w-4" />
          {date ? format(date, "PPP") : <span>Pick a date</span>}
        </Button>
      </PopoverTrigger>
      <PopoverContent align="start" className=" w-auto p-0">
        <Calendar
          mode="single"
          captionLayout="dropdown-buttons"
          selected={date}
          onSelect={setDate}
          fromYear={1960}
          toYear={2030}
        />
      </PopoverContent>
    </Popover>
  )
}

@ErhanArda no setting defaultMonth={value} does not allow you to programatically control the month it just sets a default month which means every time it opens it is set to that default month read here, but if you want to programatically control the month, you have to set it like i have put above.you can read here more.
if it does not work for you please check your code so that it matches mine, or create a sandbox and i will check it.it works fine for me and hell yea it should for you to.

This also worked

Thanks @mjbalcueva 💯

@ErhanArda yes it works but when you select the year and month from the drop down it does not reflect immediately on the button here part

<Button>other code here
{value? formattedDate : <span>Pick a date </span>}
<Button>

until you select a date and the date picker closes, but mine does.

I solved it by doing this @aynuayex:

const handleMonthChange = (newDate: Date) => { if (newDate){ setDate(newDate); onChangeValue && onChangeValue(newDate) } };

and passing this attribute to Calendar:

onMonthChange={handleMonthChange}

@Marco-Antonio-Rodrigues where does onChangeValue come?