Recently a control I have had published for quiet some time started to break (in July). This code base has not changed and has been working fine for some time. Trying to determine what update is causing this change in behavior. The issue is on initial load the field mapped to the control shows null data. But if you do a post back again (F5) it will work on the second load and if you exit the record and re-open it will work fine. Trying to understand why all of a sudden it's displaying null on initial load. As I have said - the code hasn't changed since Mar 18, 2020. This is a modified version of the PeoplePicker control -
import { IInputs, IOutputs } from "./generated/ManifestTypes";
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { PeoplePickerTypes, IPeopleProps, IPeoplePersona } from './Peoplepicker';
export class OfficeUIFabricReactPeoplePicker implements ComponentFramework.StandardControl<IInputs, IOutputs> {
private theContainer: HTMLDivElement;
private notifyOutputChanged: () => void;
private _context: ComponentFramework.Context<IInputs>;
private props: IPeopleProps = {
//tableValue: this.numberFacesChanged.bind(this),
peopleList: this.peopleList.bind(this),
}
/**
* Empty constructor.
*/
constructor() {
}
/**
* Used to initialize the control instance. Controls can kick off remote server calls and other initialization actions here.
* Data-set values are not initialized here, use updateView.
* @Param context The entire property bag available to control via Context Object; It contains values as set up by the customizer mapped to property names defined in the manifest, as well as utility functions.
* @Param notifyOutputChanged A callback method to alert the framework that the control has new outputs ready to be retrieved asynchronously.
* @Param state A piece of data that persists in one session for a single user. Can be set at any point in a controls life cycle by calling 'setControlState' in the Mode interface.
* @Param container If a control is marked control-type='standard', it will receive an empty div element within which it can render its content.
*/
public init(context: ComponentFramework.Context<IInputs>, notifyOutputChanged: () => void, state: ComponentFramework.Dictionary, container: HTMLDivElement) {
// Add control initialization code
this.notifyOutputChanged = notifyOutputChanged;
this._context = context;
this.theContainer = container;
}
/**
* Called when any value in the property bag has changed. This includes field values, data-sets, global values such as container height and width, offline status, control metadata values such as label, visible, etc.
* @Param context The entire property bag available to control via Context Object; It contains values as set up by the customizer mapped to names defined in the manifest, as well as utility functions
*/
public async updateView(context: ComponentFramework.Context<IInputs>) {
// Add code to update control view
this.props.context = context;
if (context.parameters.peoplePicker.raw !== null) {
if (context.parameters.peoplePicker.raw!.indexOf("text") > 1) {
this.props.preselectedpeople = JSON.parse(context.parameters.peoplePicker.raw!);
}
}
ReactDOM.render(
React.createElement(
PeoplePickerTypes,
this.props
),
this.theContainer
);
}
/**
* It is called by the framework prior to a control receiving new data.
* @returns an object based on nomenclature defined in manifest, expecting object[s] for property marked as “bound” or “output”
*/
public getOutputs(): IOutputs {
return {
peoplePicker: JSON.stringify(this.props.people)
};
}
private peopleList(newValue: IPeoplePersona[]) {
if (this.props.people !== newValue) {
if (newValue.length === 0) {
this.props.people = undefined;
}
else {
this.props.people = newValue;
}
this.notifyOutputChanged();
}
}
/**
* Called when the control is to be removed from the DOM tree. Controls should use this call for cleanup.
* i.e. cancelling any pending remote calls, removing listeners, etc.
*/
public destroy(): void {
// Add code to cleanup control if necessary
ReactDOM.unmountComponentAtNode(this.theContainer);
}
}
