# P calendar 6

> Calendar with Combobox dropdown for month/year

A shadcn/ui block from the [@coss](https://coss.com/ui) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/coss/p-calendar-6).

- Page, with a live preview: https://shadcn.exchange/r/coss/p-calendar-6
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/coss/p-calendar-6-light-b5aaa5d1d9192813.png
- Registry item: https://coss.com/ui/r/p-calendar-6.json
- Categories: calendar, combobox
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://coss.com/ui/r/p-calendar-6.json
```

Run it in a project that has shadcn/ui set up. It adds the files below and installs what they depend on.

## Dependencies

- npm packages: `lucide-react`
- Registry items: `@coss/calendar`, `@coss/combobox`

## Files

### `registry/default/particles/p-calendar-6.tsx`

```tsx
"use client";
import type { DropdownProps } from "@daypicker/react";
import * as React from "react";
import { Calendar } from "@/registry/default/ui/calendar";
import {
  Combobox,
  ComboboxEmpty,
  ComboboxInput,
  ComboboxItem,
  ComboboxList,
  ComboboxPopup,
} from "@/registry/default/ui/combobox";

interface DropdownItem {
  disabled?: boolean;
  label: string;
  value: string;
}

function CalendarDropdown(props: DropdownProps) {
  const { options, value, onChange, "aria-label": ariaLabel } = props;

  const items: DropdownItem[] =
    options?.map((option) => ({
      disabled: option.disabled,
      label: option.label,
      value: option.value.toString(),
    })) ?? [];

  const selectedItem = items.find((item) => item.value === value?.toString());

  const handleValueChange = (newValue: DropdownItem | null) => {
    if (onChange && newValue) {
      const syntheticEvent = {
        target: { value: newValue.value },
      } as React.ChangeEvent<HTMLSelectElement>;
      onChange(syntheticEvent);
    }
  };

  return (
    <Combobox
      aria-label={ariaLabel}
      autoHighlight
      items={items}
      onValueChange={handleValueChange}
      value={selectedItem}
    >
      <ComboboxInput
        className="**:[input]:w-0 **:[input]:flex-1"
        onFocus={(e) => e.currentTarget.select()}
      />
      <ComboboxPopup aria-label={ariaLabel}>
        <ComboboxEmpty>No items found.</ComboboxEmpty>
        <ComboboxList>
          {(item: DropdownItem) => (
            <ComboboxItem
              disabled={item.disabled}
              key={item.value}
              value={item}
            >
              {item.label}
            </ComboboxItem>
          )}
        </ComboboxList>
      </ComboboxPopup>
    </Combobox>
  );
}

export default function Particle() {
  const [date, setDate] = React.useState<Date | undefined>(new Date());
  return (
    <Calendar
      captionLayout="dropdown"
      components={{ Dropdown: CalendarDropdown }}
      endMonth={new Date(2030, 11)}
      mode="single"
      onSelect={setDate}
      selected={date}
      startMonth={new Date(1930, 0)}
    />
  );
}
```