使用setState更改复选框的状态

Question

I have a component and i am able to change the state of checkbox item when i click on a button. I also want to be able to change the state in another button-click, which has lot more logic in it. The issue i am having in that when the code goes into the condition it does not set the state back to false.

I tried changing the state again using setstate but it does not change the state of the enabledCheckBox.

this.setState({
  enabledCheckBox: !this.state.enabledCheckBox,
})

Can anyone tell me what the issue is? Thanks

class Customer extends Component {
  constructor(props) {
    super(props)
    this.state = {
      ...props,
      enabledCheckBox: false
    };
  }

  //this works    
  onChangeCheckBox=()=>{
    this.setState({
      enabledCheckBox: !this.state.enabledCheckBox,
    })
  }

  //cant get this to work
  handleCustomerClick = (event) => {

    if (this.state.enabledCheckBox) {      
      this.setState({
        enabledCheckBox: !this.state.enabledCheckBox,
      })
    }

Answer 1

your this is being bound incorrectly try this;

handleCustomerClick = (event) => {
  let {enabledCheckBox} = this.state;

  this.setState({
    enabledCheckBox: !enabledCheckBox,
  });
}

If you really need the if statement you could do the following;

handleCustomerClick = (event) => {
  let {enabledCheckBox} = this.state;
  let data;

  if (enabledCheckBox) {
    data = {
      enabledCheckBox: !enabledCheckBox
    }
  }

  this.setState(data);
}

Answer 2

https://codesandbox.io/s/1y0zywy727

I included a working example. It does similar things as how you described.

import React from "react";
import ReactDOM from "react-dom";

import "./styles.css";

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      enabledCheckBox: false
    };
  }

  onClick = () => {
    this.setState({ enabledCheckBox: !this.state.enabledCheckBox });
  };

  render() {
    return (
      <div>
        <input
          type="checkbox"
          value={"some checked box"}
          checked={this.state.enabledCheckBox}
          onChange={this.onClick}
        />
        {this.state.enabledCheckBox ? <div>Blue</div> : <div>Red</div>}
        <button onClick={this.onClick}>Click to Change Color</button>
      </div>
    );
  }
}

const rootElement = document.getElementById("root");
ReactDOM.render(<App />, rootElement);

Both input and div are using this.state.enabledcheckbox . So if you check the box, not only the box will be checked but also the div 's "color" would change with it. Same thing as clicking the button