如何在单击Semantic UI React中的下拉项时触发模态？

Question

我有一个下拉菜单和一个模态,我想在点击其中一个下拉项目时显示模态.可能吗？我无法找到这样做的方法,因为我无法获得目标DropdownItem,这是Modal的触发道具所需要的.

export class Demo extends React.Component<{}, {}> {
  private options = [
    { text: 'doNothing', value: 'doNothing' },
    { text: 'openModal', value: 'openModal' },
  ]
  render() {
    return (
      <div>
        <Dropdown
          fluid
          selection
          options={this.options}
          defaultValue={this.options[0].value} />

        <Modal trigger={<Button>trigger</Button>}>
          <Modal.Header>Select a Photo</Modal.Header>
          <Modal.Content image>
            <Modal.Description>
              <p>Some contents.</p>
            </Modal.Description>
          </Modal.Content>
        </Modal>
      </div>
    )
  }
}

Answer 1

您可以使用prop open来Modal以编程方式控制它.当您检测到所需Dropdown项目被setState适当单击时.

这些线之间的东西.

import * as React from 'react';

export class Demo extends React.Component<{}, {}> {
  state = {
    options: [
      { text: 'doNothing', value: 'doNothing' },
      { text: 'openModal', value: 'openModal' }
    ],
    open: false
  };

  onClose = () => this.setState({open: false});
  onChange = (selected) => {
    // if the correct one is selected then...
    // this.setState({open: true});
  }

  render() {
    return (
      <div>
        <Dropdown
          fluid
          selection
          options={this.options}
          onChange={this.onChange}
          defaultValue={this.options[0].value} />

        <Modal open={this.state.open} onClose={this.onClose}>
          <Modal.Header>Select a Photo</Modal.Header>
          <Modal.Content image>
            <Modal.Description>
              <p>Some contents.</p>
            </Modal.Description>
          </Modal.Content>
        </Modal>
      </div>
    )
  }
}