我有下面的代码
<Autocomplete
id='combo-box-demo'
options={companies}
getOptionLabel={getOptionLabel}
renderInput={params => (
<TextField {...params} variant='outlined' />
)}
onChange={(event, newValue) => onCompanyChange(event, newValue)}
/>
当我点击自动完成输入中的清除按钮时，我想自定义该功能。我需要询问用户是否真的想先清除字段。是否可以针对。MuiAutocomplete clearIndicator这样我就可以在上面添加更多功能了？感谢提前！
const onCompanyChange = (event, value, reason) => {
if(reason === "clear")
confirm("Are you sure to clear?"); // or you can open Dialog here
//other codes go here like setting the value of input
};
<Autocomplete
id='combo-box-demo'
options={companies}
getOptionLabel={getOptionLabel}
renderInput={params => (
<TextField {...params} variant='outlined' />
)}
onChange={onCompanyChange}
/>
您可以遵循此代码，尽管我显示一个警告您可以制作一个modal，并显示如果您希望
代码：
import React from "react";
import TextField from "@material-ui/core/TextField";
import Autocomplete from "@material-ui/lab/Autocomplete";
export default function ComboBox() {
setTimeout(async () => {
const close = await document.getElementsByClassName(
"MuiAutocomplete-clearIndicator"
)[0];
close.addEventListener("click", () => {
alert("Really, clear the input");
});
}, 100);
return (
<Autocomplete
id="combo-box-demo"
options={top100Films}
getOptionLabel={(option) => option.title}
style={{ width: 300 }}
renderInput={(params) => (
<TextField {...params} label="Combo box" variant="outlined" />
)}
/>
);
}
// Top 100 films as rated by IMDb users. http://www.imdb.com/chart/top
const top100Films = [
{ title: "The Shawshank Redemption", year: 1994 },
{ title: "The Godfather", year: 1972 },
{ title: "The Godfather: Part II", year: 1974 },
{ title: "The Dark Knight", year: 2008 },
{ title: "12 Angry Men", year: 1957 },
{ title: "Schindler's List", year: 1993 },
{ title: "Pulp Fiction", year: 1994 },
{ title: "The Lord of the Rings: The Return of the King", year: 2003 },
{ title: "The Good, the Bad and the Ugly", year: 1966 },
{ title: "Fight Club", year: 1999 },
{ title: "The Lord of the Rings: The Fellowship of the Ring", year: 2001 },
{ title: "Star Wars: Episode V - The Empire Strikes Back", year: 1980 },
{ title: "Forrest Gump", year: 1994 },
{ title: "Inception", year: 2010 },
{ title: "The Lord of the Rings: The Two Towers", year: 2002 },
{ title: "One Flew Over the Cuckoo's Nest", year: 1975 },
{ title: "Goodfellas", year: 1990 },
{ title: "The Matrix", year: 1999 },
{ title: "Seven Samurai", year: 1954 },
{ title: "Star Wars: Episode IV - A New Hope", year: 1977 },
{ title: "City of God", year: 2002 },
{ title: "Se7en", year: 1995 },
{ title: "The Silence of the Lambs", year: 1991 },
{ title: "It's a Wonderful Life", year: 1946 },
{ title: "Life Is Beautiful", year: 1997 },
{ title: "The Usual Suspects", year: 1995 },
{ title: "Léon: The Professional", year: 1994 },
{ title: "Spirited Away", year: 2001 },
{ title: "Saving Private Ryan", year: 1998 },
{ title: "Once Upon a Time in the West", year: 1968 },
{ title: "American History X", year: 1998 },
{ title: "Interstellar", year: 2014 },
{ title: "Casablanca", year: 1942 },
{ title: "City Lights", year: 1931 },
{ title: "Psycho", year: 1960 },
{ title: "The Green Mile", year: 1999 },
{ title: "The Intouchables", year: 2011 },
{ title: "Modern Times", year: 1936 },
{ title: "Raiders of the Lost Ark", year: 1981 },
{ title: "Rear Window", year: 1954 },
{ title: "The Pianist", year: 2002 },
{ title: "The Departed", year: 2006 },
{ title: "Terminator 2: Judgment Day", year: 1991 },
{ title: "Back to the Future", year: 1985 },
{ title: "Whiplash", year: 2014 },
{ title: "Gladiator", year: 2000 },
{ title: "Memento", year: 2000 },
{ title: "The Prestige", year: 2006 },
{ title: "The Lion King", year: 1994 },
{ title: "Apocalypse Now", year: 1979 },
{ title: "Alien", year: 1979 },
{ title: "Sunset Boulevard", year: 1950 },
{
title:
"Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb",
year: 1964
},
{ title: "The Great Dictator", year: 1940 },
{ title: "Cinema Paradiso", year: 1988 },
{ title: "The Lives of Others", year: 2006 },
{ title: "Grave of the Fireflies", year: 1988 },
{ title: "Paths of Glory", year: 1957 },
{ title: "Django Unchained", year: 2012 },
{ title: "The Shining", year: 1980 },
{ title: "WALL·E", year: 2008 },
{ title: "American Beauty", year: 1999 },
{ title: "The Dark Knight Rises", year: 2012 },
{ title: "Princess Mononoke", year: 1997 },
{ title: "Aliens", year: 1986 },
{ title: "Oldboy", year: 2003 },
{ title: "Once Upon a Time in America", year: 1984 },
{ title: "Witness for the Prosecution", year: 1957 },
{ title: "Das Boot", year: 1981 },
{ title: "Citizen Kane", year: 1941 },
{ title: "North by Northwest", year: 1959 },
{ title: "Vertigo", year: 1958 },
{ title: "Star Wars: Episode VI - Return of the Jedi", year: 1983 },
{ title: "Reservoir Dogs", year: 1992 },
{ title: "Braveheart", year: 1995 },
{ title: "M", year: 1931 },
{ title: "Requiem for a Dream", year: 2000 },
{ title: "Amélie", year: 2001 },
{ title: "A Clockwork Orange", year: 1971 },
{ title: "Like Stars on Earth", year: 2007 },
{ title: "Taxi Driver", year: 1976 },
{ title: "Lawrence of Arabia", year: 1962 },
{ title: "Double Indemnity", year: 1944 },
{ title: "Eternal Sunshine of the Spotless Mind", year: 2004 },
{ title: "Amadeus", year: 1984 },
{ title: "To Kill a Mockingbird", year: 1962 },
{ title: "Toy Story 3", year: 2010 },
{ title: "Logan", year: 2017 },
{ title: "Full Metal Jacket", year: 1987 },
{ title: "Dangal", year: 2016 },
{ title: "The Sting", year: 1973 },
{ title: "2001: A Space Odyssey", year: 1968 },
{ title: "Singin' in the Rain", year: 1952 },
{ title: "Toy Story", year: 1995 },
{ title: "Bicycle Thieves", year: 1948 },
{ title: "The Kid", year: 1921 },
{ title: "Inglourious Basterds", year: 2009 },
{ title: "Snatch", year: 2000 },
{ title: "3 Idiots", year: 2009 },
{ title: "Monty Python and the Holy Grail", year: 1975 }
];
如果您想要一个外观整洁的模态，您可以将该模态设置为在close.addEventListener的第二个参数(即函数本身(中可见，而不是发出警报
您可以在这里查看codesandbox中的工作演示：链接到工作演示