initState

As we have seen in the Callback section, the Callback object has a property called requestState. This property can be used to initialize the CalcGatewayForm with previous values. This is useful when you want to restore the form state after a page refresh. To render the form with the previous values, you can pass the requestState object to the initState prop of the CalcGatewayForm component.

If the initState object is null or undefined, the component will be initialized with the default values provided by the UIControls.

Usage

import {CalcGatewayForm} from 'kampmann-calcgateway-frontend'

function App() {

const [result, setResult] = useState({})

// the callback.requestState can be used to initialize the CalcGatewayForm with previous values
// the value is passed to the callback function of the CalcGatewayForm component as the "requestState" property
const oldRequestState = oldResult.requestState

  return (
    <CalcGatewayForm
      ...
      Callback={setResult}
      initState={oldRequestState}
    />
  )
}