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You're reading from ServiceNow: Building Powerful Workflows Automating IT Service Management

Product type Course

Published in Aug 2017

Publisher Packt

ISBN-13 9781788628730

Length 1330 pages

Edition 1st Edition

Languages

JavaScript

Tools

ServiceNow

Concepts

IT Service Management

Authors (3):

Tim Woodruff

Martin Wood

Ashish Rudra Srivastava

View More author details

Table of Contents (39) Chapters

Title Page

Credits

Preface

1. Module 1 FREE CHAPTER

Learning ServiceNow

2. The Interface

3. Lists and Forms

4. UI Customization

5. Understanding Data and Relationships

6. Tasks and Workflows

7. UI and Data Policies

8. User Administration and Security

9. Introduction to Scripting

10. The Server-side Glide API

11. The Client-side Glide API

12. Server-side Scripting

13. Client-side Scripting

14. Debugging

15. Pro Tips

16. Module 2

ServiceNow Cookbook

17. Getting Started with Service-Now

18. Performing Core Configuration and Management Tasks

19. Building Data-Driven Application

20. Configuring Alerts and Notifications

21. Building and Configuring Reports

22. Creating and Configuring Workflow Activities

23. Auditing and Diagnosing Service-Now

24. Module 3

Mastering ServiceNow

25. ServiceNow Foundations

26. Developing Custom Applications

27. Server-Side Control

28. Client-Side Interaction

29. Getting Things Done with Tasks

30. Events, Notifications, and Reporting

31. Exchanging Data – Import Sets, Web Services, and other Integrations

32. Securing Applications and Data

33. Diagnosing ServiceNow – Knowing What Is Going On

34. Packaging with Applications, Update Sets, and Upgrades

35. Making ServiceNow Beautiful with Service Portal and Custom Interfaces

36. Bibliography

GlideForm (g_form)

The GlideForm API is exposed within client-side scripts as the 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...