Dojo2如何强制dojo 2小部件重新渲染？

Question

I am using dojo2 widget. I want to render the widget(VDOM) on form submit.

public submitFrom(input: any): void {
    console.log("want to re-render widget after this.");
}

In submitFrom I want re-render my dom.

Answer 1

I got the solution.

Dojo 2 widgetbase has invalidate method, which force the widget to re-render. Dojo 2 Widgets can invoke invalidate() directly, however a non-widget can only emit an event with: this.emit({ type: 'invalidate' })

public submitFrom(input: any): void {
  console.log("want to re-render widget after this.");
  // force the widget to re-render
  this.invalidate();
}

For non-widget need to do as follows:-

public submitForm(): void {
    this.emit({ type: 'invalidate' });
}