Dynamics 365 for Finance and Operations: More Than One Form Was Opened at Once for the Lookup Control

by | July 16, 2018 | Dynamics 365 for Finance and Operations, Dynamics AX

In Dynamics 365 for Finance and Operations, when subscribing to a lookup event to modify an existing lookup on a form control, you must remove the super call to the existing lookup. Otherwise, when clicking on the control a message will display stating, “More than one form was opened at once for the lookup control.” An example of the message is shown in the upper right corner of the image below.

Multiple Forms in lookup control

The following steps can be utilized in the lookup event to cancel the super call of the original lookup:

  1. Declare a new variable of type FormControlCancelableSuperEventArgs.
  2. Initialize the new variable with the current FormControlEventArgs parameter ‘e’ and cast it as type FormControlCancelableSuperEventArgs.
  3. Finally, use the new variable and call the CancelSuperCall() method.

Below is an X++ example of subscribing to a lookup event and canceling the super call.


Related Posts


Submit a Comment

Your email address will not be published. Required fields are marked *

Upcoming Events


02jun2:00 pm2:30 pmBusiness Intelligence for Batch Manufacturers

16jun10:00 am10:30 amHow AP automation can speed up month-end close in D365 Finance

17jun11:00 am12:00 pmConfab Live with Stoneridge – Real Time Marketing Strategies for Success

23jun10:00 am10:30 amThe Modern Manufacturer: Cost Accounting in D365

30jun10:00 am10:30 amAP Automation Checklist for a 2022 Rebound

30jun2:00 pm2:30 pmAchieving Success: How Technology Is Helping Nonprofits Thrive


01jul11:00 am12:00 pmConfab Live with Stoneridge – Dataverse Virtual Entities

14jul12:00 pm12:30 pmBeyond Reporting - What Business Intelligence Can Do For Your Agribusiness

15jul11:00 am12:00 pmConfab Live with Stoneridge – Integration Strategies for End User Success

21jul10:00 am10:30 amThe Modern Manufacturer: Manufacturing Software in the Real World

21jul12:00 pm1:00 pmIs it Worth it to Upgrade to Dynamics 365 Finance and Supply Chain Management? - Everything AX Users Need to Consider

About Stoneridge
Stoneridge Software is a unique Microsoft Gold Partner, with emphasis on partner. With specialties in Microsoft Dynamics 365, Microsoft Dynamics AX, Microsoft Dynamics NAV, Microsoft Dynamics GP and Microsoft Dynamics CRM, we focus on attracting the most knowledgeable experts in the field to our team, and prioritize delivering stellar solutions with maximum impact for your business. At Stoneridge, we are deeply committed to your results. Each engagement is met with a dedicated team, ready to provide thorough, tailored, and expert service. Based in Minnesota, we intentionally “step into your shoes,” wherever you are. We focus on what you care about, and develop trusting, long-term relationships with our clients.

Subscribe To Our Blog

Sign up to get periodic updates on the latest posts.

Thank you for subscribing!