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ReactControl.init

  • Artikkeli

Used to initialize the component instance. Components can kick off remote server calls and other initialization actions. Dataset values cannot be initialized here, use the updateView method to achieve that.

trackContainerResize should be called once preferably in the component init method to notify that the component needs the layout information . This indicates the framework to populate allocatedHeight and allocatedWidth methods.

Note

trackContainerResize should be called first before the allocatedHeight and allocatedWidth methods.

Available for

Model-driven and canvas apps

Syntax

init(context,notifyOutputChanged,state)

Parameters

Parameter Name Type Required Description
context Context yes The Input Properties containing the parameters, component metadata and interface functions.
notifyOutputChanged function no The method to notify the framework that it has new outputs
state Dictionary no The component state that is saved from setControlState in the last session

Note

The ReactControl.init method doesn't have a container parameter with a HTMLDivElement like the StandardControl.init method does. There is no container parameter because React controls do not render the DOM directly. Instead, the ReactControl.updateView method returns an ReactElement containing a description of the virtual control DOM.

Example

public init(
    context: ComponentFramework.Context<IInputs>,
    notifyOutputChanged: () => void,
    state: ComponentFramework.Dictionary
): void {
    this.notifyOutputChanged = notifyOutputChanged;
    this.context.mode.trackContainerResize(true);
}

React controls & platform libraries
ReactControl
Power Apps component framework API reference
Power Apps component framework overview