Question

我正在尝试从父组件按钮打开/关闭reactstrap模态，但是我无法使其正常工作。

我正在将状态isModalOpen传递给子ModalExample组件，它的变化如我所做的调试文本字段中所示，但模态似乎没有打开。

感谢您的帮助。这是一个jsfiddle：https://jsfiddle.net/67wy5nqp/

const { Button, Modal, ModalHeader, ModalBody, ModalFooter } = Reactstrap;

class ModalExample extends React.Component {
  constructor(props) {
    super(props);
    console.log(this.props);
  }

  render() {
    return (
      <div>
        <br />
        <label>
          (child) this.props.isOpen
          <input type="text" value={this.props.isOpen} />
        </label>

        <Modal
          isOpen={this.props.isModalOpen}
          toggle={this.props.toggleModalView}
          className={this.props.className}
        >
          <ModalHeader toggle={this.props.toggleModalView}>
            Modal title
          </ModalHeader>
          <ModalBody>
            Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
            eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim
            ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
            aliquip ex ea commodo consequat. Duis aute irure dolor in
            reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
            pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
            culpa qui officia deserunt mollit anim id est laborum.
          </ModalBody>
          <ModalFooter>
            <Button color="primary" onClick={this.props.toggleModalView}>
              Do Something
            </Button>
            <Button color="secondary" onClick={this.props.toggleModalView}>
              Cancel
            </Button>
          </ModalFooter>
        </Modal>
      </div>
    );
  }
}

class SampleApp extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      isModalOpen: true
    };

    this.showModal = this.showModal.bind(this);
    this.toggle = this.toggle.bind(this);
  }

  toggle() {
    this.setState({
      isModalOpen: !this.state.isModalOpen
    });
  }

  showModal() {
    this.setState({
      isModalOpen: true
    });
  }

  render() {
    return (
      <div>
        <ModalExample
          isOpen={this.state.isModalOpen}
          toggle={this.state.isModalOpen}
        />

        <br />
        <button className="btn btn-primary" onClick={this.toggle}>
          Show Modal From Parent Component
        </button>

        <br />
        <label>
          (parent) this.state.isModalOpen:
          <input type="text" value={this.state.isModalOpen} />
        </label>
      </div>
    );
  }
}

ReactDOM.render(<SampleApp />, document.querySelector("#app"));

Answer 1

您正在传递状态变量isModalOpen作为指示它是否打开的变量，以及用于切换它的函数。改为使用this.toggle进行切换。

<ModalExample
  isOpen={this.state.isModalOpen}
  toggle={this.toggle}
/>

您还使用了toggleModalView组件中的ModalExample道具，但是您以toggle的形式传入了函数，因此应该改用this.props.toggle。您还将isModalOpen作为isOpen传递，因此应改用this.props.isOpen。

Answer 2

    import React from 'react';
import { Button, Modal, ModalFooter, ModalHeader,ModalBody} from 'reactstrap';


class ModalExample extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            modal: props.initialModalState,
            fade: true
        };

        this.toggle = this.toggle.bind(this);
    }

    toggle() {
        this.setState({
            modal: !this.state.modal,
            fade: !this.state.fade

        });
    }

    render() {
        return (
            <div>
                <Button color="danger" onClick={this.toggle}>TOGGLE</Button>
                <Modal isOpen={this.state.modal} toggle={this.toggle}
                       fade={this.state.fade}
                       className={this.props.className}>
                    <ModalHeader toggle={this.toggle}>Modal title</ModalHeader>
                    <ModalBody>



                    </ModalBody>
                    <ModalFooter>
                        <Button color="primary" onClick={this.toggle}>Do Something</Button>{' '}
                        <Button color="secondary" onClick={this.toggle}>Cancel</Button>
                    </ModalFooter>
                </Modal>
            </div>
        );
    }
}

export default class SampleApp extends React.Component {
    constructor(props) {
        super(props);
        this.state = {}
    }

    render() {
        return (
            <div>
                <ModalExample initialModalState={false} />
            </div>
        )
    }
}

**This example getting call component modal from another component**

如何从父组件使Reactstrap模态打开或关闭

2 个答案: