形式提交，反应钩形式和反应状态
我想拥有一个显示“编辑”以输入编辑模式的按钮，并（使用相同的按钮）“保存”以提交表单。
我的问题是，当按钮“编辑”显示时，请按按钮提交提交。
链接到codesandbox 下面的代码。
import "./styles.css";
import { useState } from "react";
import { useForm } from "react-hook-form";
import { Button } from "@material-ui/core";
export default function App() {
//Setting up state
const [isEditing, setIsEditing] = useState(false);
//Handler for entering edit mode.
const handleEnterEditMode = () => {
setIsEditing(true);
console.log("Edit mode entered.");
};
//Handler that runs on form submission.
const handleSave = () => {
console.log("Form submitted.");
};
//Setting up some react-hook-forms variables according to their docs
const {
register,
formState: { errors },
handleSubmit,
control,
reset
} = useForm();
//In render:
return (
<div className="App">
<form noValidate onSubmit={handleSubmit(handleSave)}>
<Button
{...(isEditing ? { type: "submit" } : {})}
{...(!isEditing ? { onClick: handleEnterEditMode } : {})}
>
{!isEditing ? "Edit" : "Save"}
</Button>
</form>
</div>
);
}
I would like to have a button that displays "Edit" to enter Edit mode and (using the same button) "Save" to submit the form.
My problem is that it already submits the form upon pressing the button while the button text "Edit" is showing.
Link to codesandbox, containing the code below.
import "./styles.css";
import { useState } from "react";
import { useForm } from "react-hook-form";
import { Button } from "@material-ui/core";
export default function App() {
//Setting up state
const [isEditing, setIsEditing] = useState(false);
//Handler for entering edit mode.
const handleEnterEditMode = () => {
setIsEditing(true);
console.log("Edit mode entered.");
};
//Handler that runs on form submission.
const handleSave = () => {
console.log("Form submitted.");
};
//Setting up some react-hook-forms variables according to their docs
const {
register,
formState: { errors },
handleSubmit,
control,
reset
} = useForm();
//In render:
return (
<div className="App">
<form noValidate onSubmit={handleSubmit(handleSave)}>
<Button
{...(isEditing ? { type: "submit" } : {})}
{...(!isEditing ? { onClick: handleEnterEditMode } : {})}
>
{!isEditing ? "Edit" : "Save"}
</Button>
</form>
</div>
);
}
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默认情况下，表单元素内部的按钮将始终触发提交事件。您可以将按钮给按钮一个“按钮”的类型属性，或在OnClick方法中添加DestrestDefault（）以覆盖此属性。
A button inside of a Form element will always fire a Submit event by default. You can give give the button a type attribute of "button", or add a preventDefault() to the onClick method to override this.
尝试这种方法：
and also move your
onClickcondition insidehandleEnterEditModemethodTry this approach:
and also move your
onClickcondition insidehandleEnterEditModemethod