Book Image

Learning ServiceNow. - Second Edition

5 (1)
Book Image

Learning ServiceNow. - Second Edition

5 (1)

Overview of this book

This book is an updated version of Learning ServiceNow, that will cover the new and updated features of the ServiceNow platform. It will show you how to put important ServiceNow features to work in the real world, while introducing key concepts via examples of managing and automating IT services. It'll help you build a solid foundation of knowledge, and will demonstrate how to effectively implement and configure modules within ServiceNow. We'll show you how to configure and administer your instance, and then move on to building strong user interfaces and creating powerful workflows. We also cover other key elements of ServiceNow, such as notifications, security, reporting, and custom development. You will learn how to improve and automate your business' workflow and processes. By the end of this book, you will be able to successfully configure and manage ServiceNow like a pro.
Table of Contents (19 chapters)
Learning ServiceNow Second Edition
Contributors
Preface
Index

GlideForm (g_form)


The GlideForm API is exposed within client-side scripts as the object variable g_form. This API provides methods for interacting with forms and fields, adding messages for the user, adding and removing options from a drop-down field, and more.

Below, we'll discuss some of the more commonly used and useful methods of the GlideForm API, and see how they can be put to use.

Setting/clearing messages on the form and fields

There are multiple methods for setting and clearing messages within forms, both at the top of the user interface (similar to the behavior of the server-side APIs: gs.addInfoMessage() and gs.addErrorMessage()), and against specific fields.

These methods are: showFieldMsg(), hideFieldMsg(), showErrorBox(), and hideErrorBox().

These methods of the g_form API are extremely useful for communicating information to the user from client scripts or UI policies, such as whether or not a field meets certain validation criteria.

One such set of field-level methods of the GlideForm...