我对JavaScript和React都很陌生,但是一直在玩一个用于创建带验证的表单的UI组件库,但遇到了一些麻烦。
遵循他们的API /文档here我创建了一个Form,它在使用From.create时应该包含道具但是我在checkConfirm函数Uncaught TypeError: Cannot read property 'form' of undefined1
行中这样做时得到const form = this.props.form;
。
class CustomizedForm extends React.Component {
constructor(...args) {
super(...args);
}
handleSubmit() {
e.preventDefault();
this.props.form.validateFields((err, values) => {
if (!err) {
console.log('Received values of form: ', values);
}
})
}
checkConfirm(rule, value, callback) {
console.log(value.length);
const form = this.props.form;
if (value.length == 11) {
form.validateFields(['confirm'], { force: true });
};
callback();
}
render() {
const { getFieldDecorator } = this.props.form;
const formItemLayout = {
labelCol: { span: 6 },
wrapperCol: { span: 14 }
};
return (
<div>
<Form inline style={{ marginTop: 10, marginBottom: 10 }} onSubmit={this.handleSubmit}>
<FormItem
{...formItemLayout}
hasFeedback
>
{getFieldDecorator('password', {
rules: [{
required: true, message: 'Please input your password!',
}, {
validator: this.checkConfirm,
}],
})(
<Input placeholder="password" />
)}
</FormItem>
<FormItem hasFeedback>
</FormItem>
<FormItem >
<Input style={{ width: '200px' }} size="default" placeholder="Shelf Place"></Input>
</FormItem>
<FormItem>
<ProcessSelect />
</FormItem>
<FormItem>
<ZoneSelect />
</FormItem>
<FormItem>
<ZalosRangePicker />
</FormItem>
<FormItem>
<ButtonGroup size="default">
<Button size="default" icon="search" />
<Button size="default" icon="close" />
</ButtonGroup>
</FormItem>
</Form>
</div>
)
}
}
CustomizedForm = Form.create({})(CustomizedForm);
答案 0 :(得分:0)
我在这里发现了一些错误,
。错误原因,
你需要将它绑定到像
这样的函数 constructor(...args) {
super(...args);
this.checkConfirm = this.checkConfirm.bind(this)
}
功能定义
checkConfirm(rule, value, callback) {
console.log(value.length);
const form = this.props.form;
if (value.length == 11) {
form.validateFields(['confirm'], { force: true });
};
callback();
}
你没有通过任何安排来运作。