ReactJS, React-Router: Calling parent function - reactjs

Question

I am working on a React App, trying to call a parent method from a child component, some code of the parent component below:
class NavigationBar extends Component {
constructor(props){
super(props);
this.state={isLoggedIn: false};
}
updateLoginState(){
alert("Login from NavigationBar");
}
GetBar() {
//const isLoggedIn = this.props.isLoggedIn;
if (false){ //isLoggedIn
return this.UserNavBar();
}
return this.StrangerNavBar();
}
StrangerNavBar(){
return (
<div>
<HashRouter>
<div>
{/* ... */}
<div className="content">
<Route exact path="/LoginCC" loginUpdate={this.updateLoginState} component={LoginCC} />
</div>
</div>
</HashRouter>
</div>
);
}
render() {
return (
this.GetBar()
);
}
}
export default NavigationBar;
This component is supposed to redirect the user to different content pages based on whether or not he is logged in, using a Router. If a button is clicked in LoginCC.js the method updateLoginState should be invoked which just displays a message for now. The child content page LoginCC.js looks as follows:
class LoginCC extends Component {
constructor(props){
super(props);
this.state = {isLoggedIn: false};
}
render() {
return (
<div>
<HashRouter>
{/* ... */}
<Button variant="primary" size="lg" block onClick={this.props.loginUpdate}>
Log in
</Button>
{/* ... */}
</HashRouter>
</div>
);
}
}
export default LoginCC;
I passed the method reference as a prop to LoginCC when rendering this component using the Router, so a message should pop up if I press the button, but nothing happens.
Am I passing the prop incorrectly or something else I've missed? I'm new to React so any help is appreciated.

Answer 1

Route doesn't pass any custom props to components. You should use other method to pass functions.
One of solutions is:
<Route exact path="/LoginCC" render={
props => <LoginCC {...props} loginUpdate={this.updateLoginState}/>
} />
Note that updateLoginState will not get this when called. You should either bind it or declare it as an arrow function to get the correct this.
Also check the Context documentation.