score:2
when you update a state in parent component it will not reflect in child components until you use componentwillreceiveprops(props)
.
bascially componentwillreceiveprops(props)
keeps track whenever the state is changed.
so when you do
<deletemodal rowid={this.state.rowid} deletehandler={this.deletehandler} />
this will only bind state which were set at initial render()
.
solution
in you modal class create a method of react lifecycle as
componentwillreceiveprops(props){
console.log(props.rowid) //this will get whenever state changes after initial render
}
see more on componentwillreceiveprops()
score:1
you just pass those states as props to the child component:
<somechildcomponent someproperty={this.state.somestate} />
then the child component will receive the updated props (this.props.someproperty
) automatically when the state in parent changes.
Source: stackoverflow.com
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