【发布时间】：2020-03-29 10:23:32
【问题描述】：
我正在做的是我在 ant 设计表中呈现数据，现在每行的每一列都是可编辑的，当呈现错误数据时，例如电子邮件格式错误，应该有验证消息发送到电子邮件，电子邮件是无效&当用户开始输入时，我还需要验证用于编辑的用户输入。就像当用户开始打字时，我还需要验证每个输入更改是正确的电子邮件还是错误的，同样，我需要为行的每一列使用自定义正则表达式，我希望我尽我所能来解决我的问题面对。
到目前为止我尝试过的内容如下。
1 - 当数据被呈现到表中时，每行有两个可编辑的列。 Data is rendered
2 - 当用户开始编辑时 User Editing
3 - 当文本框为空时验证失败我的目标是验证每次击键，验证通过错误消失时输入的电子邮件是否正确。 Validation Failed
下面是我目前尝试的代码
import React, { useContext, useState, useEffect, useRef } from "react";
import ReactDOM from "react-dom";
import "antd/dist/antd.css";
import "./index.css";
import { Table, Input, Button, Popconfirm, Form } from "antd";
const EditableContext = React.createContext();
const EditableRow = ({ index, ...props }) => {
const [form] = Form.useForm();
return (
<Form form={form} component={false}>
<EditableContext.Provider value={form}>
<tr {...props} />
</EditableContext.Provider>
</Form>
);
};
const EditableCell = ({
title,
editable,
children,
dataIndex,
record,
handleSave,
...restProps
}) => {
const [editing, setEditing] = useState(false);
const inputRef = useRef();
const form = useContext(EditableContext);
useEffect(() => {
if (editing) {
inputRef.current.focus();
}
}, [editing]);
const toggleEdit = () => {
setEditing(!editing);
form.setFieldsValue({
[dataIndex]: record[dataIndex]
});
};
const save = async e => {
try {
const values = await form.validateFields();
toggleEdit();
handleSave({ ...record, ...values });
} catch (errInfo) {
console.log("Save failed:", errInfo);
}
};
let childNode = children;
if (editable) {
childNode = editing ? (
<Form.Item
style={{
margin: 0
}}
name={dataIndex}
rules={[
{
required: true,
message: `${title} is required.`
}
]}
>
<Input ref={inputRef} onPressEnter={save} onBlur={save} />
</Form.Item>
) : (
<div
className="editable-cell-value-wrap"
style={{
paddingRight: 24
}}
onClick={toggleEdit}
>
{children}
</div>
);
}
return <td {...restProps}>{childNode}</td>;
};
class EditableTable extends React.Component {
constructor(props) {
super(props);
this.columns = [
{
title: "name",
dataIndex: "name",
width: "30%",
editable: true
},
{
title: "age",
dataIndex: "age",
editable: true
},
{
title: "address",
dataIndex: "address"
},
{
title: "operation",
dataIndex: "operation",
render: (text, record) =>
this.state.dataSource.length >= 1 ? (
<Popconfirm
title="Sure to delete?"
onConfirm={() => this.handleDelete(record.key)}
>
<a>Delete</a>
</Popconfirm>
) : null
}
];
this.state = {
dataSource: [
{
key: "0",
name: "Edward King 0",
age: "32",
address: "London, Park Lane no. 0"
},
{
key: "1",
name: "Edward King 1",
age: "32",
address: "London, Park Lane no. 1"
}
],
count: 2
};
}
handleDelete = key => {
const dataSource = [...this.state.dataSource];
this.setState({
dataSource: dataSource.filter(item => item.key !== key)
});
};
handleAdd = () => {
const { count, dataSource } = this.state;
const newData = {
key: count,
name: `Edward King ${count}`,
age: 32,
address: `London, Park Lane no. ${count}`
};
this.setState({
dataSource: [...dataSource, newData],
count: count + 1
});
};
handleSave = row => {
const newData = [...this.state.dataSource];
const index = newData.findIndex(item => row.key === item.key);
const item = newData[index];
newData.splice(index, 1, { ...item, ...row });
this.setState({
dataSource: newData
});
};
render() {
const { dataSource } = this.state;
const components = {
body: {
row: EditableRow,
cell: EditableCell
}
};
const columns = this.columns.map(col => {
if (!col.editable) {
return col;
}
return {
...col,
onCell: record => ({
record,
editable: col.editable,
dataIndex: col.dataIndex,
title: col.title,
handleSave: this.handleSave
})
};
});
return (
<div>
<Button
onClick={this.handleAdd}
type="primary"
style={{
marginBottom: 16
}}
>
Add a row
</Button>
<Table
components={components}
rowClassName={() => "editable-row"}
bordered
dataSource={dataSource}
columns={columns}
/>
</div>
);
}
}
ReactDOM.render(<EditableTable />, document.getElementById("container"));
我的目标：
1 - 呈现数据时，我需要在那里进行验证，好像电子邮件不正确，那么该无效电子邮件将有效。
2 - 当用户开始输入时，它会在电子邮件正确验证消失时验证 Keystore。
3 - 会有更多的列，如电话，地址将有正则表达式我需要使用正则表达式分别验证每一行中的每一列。
我已尽力描述我的问题，如果我能提供任何其他信息，请告诉我谢谢
【问题讨论】：
标签： javascript regex reactjs validation