Error with onSelect in Calendar with react-hook-form?

[dBianchii]

I am trying to use the Calendar picker with react hook form. At the end of this page they have an example of how to do it - https://ui.shadcn.com/docs/components/date-picker#react-hook-form

I copied the exact same page to my vscode, but I keep getting this error:

Type '(event: Date | ChangeEvent<Element>) => void' is not assignable to type 'SelectSingleEventHandler'.
  Types of parameters 'event' and 'day' are incompatible.
    Type 'Date | undefined' is not assignable to type 'Date | ChangeEvent<Element>'.
      Type 'undefined' is not assignable to type 'Date | ChangeEvent<Element>'.ts(2322)

Here's the full code:

"use client";

import { zodResolver } from "@hookform/resolvers/zod";
import { format } from "date-fns";
import { CalendarIcon } from "lucide-react";
import { useForm } from "react-hook-form";
import * as z from "zod";

import { cn } from "@ui/lib/utils";
import { Button } from "@/components/ui/button";
import { Calendar } from "@/components/ui/calendar";
import {
  Form,
  FormControl,
  FormDescription,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form";
import {
  Popover,
  PopoverContent,
  PopoverTrigger,
} from "@/components/ui/popover";
import { toast } from "@/components/ui/use-toast";

const FormSchema = z.object({
  dob: z.date({
    required_error: "A date of birth is required.",
  }),
});

export function DatePickerForm() {
  const form = useForm<z.infer<typeof FormSchema>>({
    resolver: zodResolver(FormSchema),
  });

  function onSubmit(data: z.infer<typeof FormSchema>) {
    toast({
      title: "You submitted the following values:",
      description: (
        <pre className="mt-2 w-[340px] rounded-md bg-slate-950 p-4">
          <code className="text-white">{JSON.stringify(data, null, 2)}</code>
        </pre>
      ),
    });
  }

  return (
    <Form {...form}>
      <form
        onSubmit={(e) => void form.handleSubmit(onSubmit)(e)}
        className="space-y-8"
      >
        <FormField
          control={form.control}
          name="dob"
          render={({ field }) => (
            <FormItem className="flex flex-col">
              <FormLabel>Date of birth</FormLabel>
              <Popover>
                <PopoverTrigger asChild>
                  <FormControl>
                    <Button
                      variant={"outline"}
                      className={cn(
                        "w-[240px] pl-3 text-left font-normal",
                        !field.value && "text-muted-foreground"
                      )}
                    >
                      {field.value ? (
                        format(field.value, "PPP")
                      ) : (
                        <span>Pick a date</span>
                      )}
                      <CalendarIcon className="ml-auto h-4 w-4 opacity-50" />
                    </Button>
                  </FormControl>
                </PopoverTrigger>
                <PopoverContent className="w-auto p-0" align="start">
                  <Calendar
                    mode="single"
                    selected={field.value}
                    onSelect={field.onChange}
                    disabled={(date) =>
                      date > new Date() || date < new Date("1900-01-01")
                    }
                    initialFocus
                  />
                </PopoverContent>
              </Popover>
              <FormDescription>
                Your date of birth is used to calculate your age.
              </FormDescription>
              <FormMessage />
            </FormItem>
          )}
        />
        <Button type="submit">Submit</Button>
      </form>
    </Form>
  );
}

[dBianchii]

I managed to "fix" it by changing the onSelect to onDayClick

[marcelblijleven]

It's caused by an update in react-hook-form, pinning to 7.44.3 helps (see https://github.com/shadcn/ui/issues/735#issuecomment-1609416635)

[oscartorres-10]

I managed to "fix" it by changing the onSelect to onDayClick

Thanks! This helped me to avoid that error. How did you get to making that change?

[vitorschelb]

I managed to "fix" it by changing the onSelect to onDayClick

Hero

[shadcn]

This issue has been automatically closed because it received no activity for a while. If you think it was closed by accident, please leave a comment. Thank you.

[cy-alonzo]

Hello! Is there an update for this? I encountered the same issue with the calendar component. my react-day-picker version: "react-day-picker": "^8.10.1",

[CafeinoDev]

@0xCyyy3000 selected={field.value ? new Date(field.value) : undefined}