How to Validate form fields in PDF Viewer?

Essential JS 2 PDF Viewer 

The PDF Viewer in ASP.NET MVC (Essential JS 2) is a modern enterprise UI toolkit that has been built from the ground up to be lightweight, responsive, modular, and touch-friendly. It is also available in other frameworks, such as JavaScript, Angular, and React.

Refer to the following UG link for getting started with the PDF Viewer:

https://ej2.syncfusion.com/aspnetmvc/documentation/pdfviewer/getting-started

• The form fields in the PDF Viewer will be validated when the enableFormFieldsValidation is set to true and hooked to the validateFormFields.

• The validateFormFields will be triggered when the PDF document is downloaded or printed with non-filled form fields.

• The non-filled fields will be obtained in the ‘nonFillableFields’ property of the event arguments of validateFormFields.

Code Sample

@Html.EJS().PdfViewer("pdfviewer").ServiceUrl(VirtualPathUtility.ToAbsolute("~/PdfViewer/")).ValidateFormFields("validateFormFields").EnableFormFieldsValidation(true).DocumentPath("HTTP Succinctly.pdf").Render()

function validateFormFields(args) {
        var nonfilledFormFields = args.nonFillableFields;
}

https://www.syncfusion.com/downloads/support/directtrac/general/ze/EJ2PdfViewer_(3)974621977

Conclusion