How do I set the focus to the first field on open

[Byron_J_Clark]

I am creating a mulitple page form and would like to set the focus to the first field of the form when the end-user opens the form.

[Raghu_Nagireddy]

On docReady event, set the focus to required field using the javaScript.

xfa.host.setFocus(this.somExpression);

RAGHU.