Question

我是一名redux初学者，并坚持通过redux道具来路由渲染问题。

×
TypeError: Cannot read property 'quantity' of undefined
PageLayout._this.render
src/components/controls/PageLayoutRoute/PageLayoutRoute.js:135
  132 |     to: routes.checkout,
  133 |     withArrow: true,
  134 |     bold: true,
> 135 |     disabled: (this.props.nonFrameDisplay.quantity == 0 && this.props.frameDisplay.quantity == 0) ? true : false
  136 |   };
  137 | }
  138 |

PageLayoutRoute看起来像这样。

const PageLayoutRoute = ({component: Component, ...rest }) => {
  return (
  <Route
    {...rest}
    render={props =>
      <PageLayout {...props}>
        <Component />
      </PageLayout>}
  />
  )
};

PageLayoutRoute.propTypes = {
  component: PropTypes.func.isRequired,
};
const mapStateToProps = state => ({
  nonFrameDisplay: state.app.nonFrameDisplay,
  frameDisplay: state.app.frameDisplay,
});
const mapDispatchToProps = {
};
export default withRouter(connect(mapStateToProps, mapDispatchToProps)(PageLayoutRoute));

PageLayout组件包含在PageLayoutRout中。看起来像这样。

class PageLayout extends React.Component {
  static propTypes = {
    children: PropTypes.node.isRequired,
    hideTopNav: PropTypes.bool,
    hideBottomNav: PropTypes.bool,
    ...bottomNavProps
  };

  static defaultProps = {
    hideTopNav: false,
    hideBottomNav: false
  };

如何使用react-router-dom通过Route渲染从redux store传递nonFrameDisplay，FrameDisplay道具？提前谢谢！

Answer 1

写作时

PageLayoutRoute

将<Route {...rest}连接到Store后收到的道具将通过

传递给路径组件

const PageLayoutRoute = ({component: Component, nonFrameDisplay, frameDisplay, ...rest }) => {
  return (
  <Route
    {...rest}
    render={props =>
      <PageLayout
          {...props}
          nonFrameDisplay={nonFrameDisplay}
          frameDisplay={frameDisplay}
      >
        <Component />
      </PageLayout>}
  />
  )
};

PageLayoutRoute.propTypes = {
  component: PropTypes.func.isRequired,
};
const mapStateToProps = state => ({
  nonFrameDisplay: state.app.nonFrameDisplay,
  frameDisplay: state.app.frameDisplay,
});
const mapDispatchToProps = {
};
export default withRouter(connect(mapStateToProps, mapDispatchToProps)(PageLayoutRoute));

但是这些不会传递到Route，

呈现的Component上

您需要执行类似

的操作

 MySurfaceView mySurfaceView = new MySurfaceView();

如何使用react-router通过Route渲染传递redux存储道具？

1 个答案: