cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
accorti
Helper I
Helper I

Using Combo Box as input for Lookup function

Hello,

 

I have a combo box set up in my app that references a list of my customers from Business Central, this field is called company name and the source is called customers. I want to use the selected value from that combo box to populate a label with the corresponding company number (field called number) for the user's selection. 

 

What I've tried is as follows: 

If(IsEmpty(ComboBox3.SelectedItems), Blank(), LookUp(customers, ComboBox3.SelectedItems= customers.displayName, number))

 

If no selection has been made yet (i.e ComboBox3 is empty) then I want the label to show blank, 

else I want the label value to be looked up in my customers table where the customer.displayname (company name) is equal to the value in the combo box and for it to return the company number as the label's value.

 

I keep hitting the same error under the "=" in the condition argument using the syntax above saying there is an invalid argument type for the function. What am I doing wrong? 

 

 

10 REPLIES 10
timl
Super User
Super User

Hi @accorti 

I think the syntax you need would look along the lines of this:

If(IsEmpty(ComboBox3.SelectedItems), 
    Blank(), 
    LookUp(customers, ComboBox3.Selected.Value = customers.displayName, number)
)

If ComboBox3.Selected.Value isn't valid, you can type the line beneath:

ComboBox3.Selected.

The intellisense in the formula bar should show you the list of valid property names.

@timl Thats a good thought. However I am still receiving he same error with "=".  For your reference, intellisense was not providing the .Value property, but only provided .displayname which is the field in Business Central that provides customer name. 

 

I am curious though, with your method why would we use .Selected rather than .SelectedItems? Is the difference between them just allowing for a single value vs a table of values? 

 

Thanks

Hi @accorti 

Just to confirm, this still gives you the same error?

If(IsEmpty(ComboBox3.SelectedItems), 
    Blank(), 
    LookUp(customers, ComboBox3.Selected.displayName = customers.displayName, number)
)

Yes, you're correct that .Selected returns the currently selected item in the Combobox. A Combobox can have multiple selected items, and this is what SelectedItems would return.

You might also want to try this to see if it makes a difference...

If(IsEmpty(ComboBox3.SelectedItems), 
    Blank(), 
    LookUp(customers, ComboBox3.Selected.displayName = displayName, number)
)
v-xida-msft
Community Support
Community Support

Hi @accorti ,

Could you please share a bit more about the formula you typed within the Items property of the ComboBox?

Do you enable single value option or Multiple options within the ComboBox? Do you set the displayName column from your customers data source as display value within the ComboBox?

 

I assume that you enable single value option within the ComboBox, and set the displayName column as display value, is it true?

 

Based on the formula you provided, I think there is something wrong with it. I have made a test on my side, please consider take a try with the following workaround:

Set the Items property of the ComboBox3 to following:

customers

set the displayName column as display value within the ComboBox3.

 

Set the Text property of the Label to following:

If(
   IsBlank(ComboBox3.Selected.Value),
   Blank(),
   LookUp(customers, displayName = ComboBox3.Selected.displayName, number)
)

 

In addition, please also consider take a try with the following workaround:

Set the Items property of the ComboBox3 to following:

Distinct(customers, displayName)

set the Result property as display value within the ComboBox3.

Set the Text property of the Label to following:

If(
   IsBlank(ComboBox3.Selected.Result),
   Blank(),
   LookUp(customers, displayName = ComboBox3.Selected.Result, number)
)

 

Please consider take a try with above solution, check if the issue is solved.

 

Best regards,

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Some Questions I have on your response:

(quotes are just for the context of the post, not actually used in the formulas)

 

1) If I set the items property on the ComboBox to just "customers" then it does not show anything because it is a table of values. I have to specify the column I need displayed. i.e. "customers.displayName"

 

2) I do not see a "Result" Property for the combobox, can you specify what you might mean by this? 

 

 

Additionally, with your last solution 

If(
   IsBlank(ComboBox3.Selected.Result),
   Blank(),
   LookUp(customers, displayName = ComboBox3.Selected.Result, number)
)

 

I received the following error:  "The requested operation is invalid. server response: Logical Operator 'equal' is not allowed. To Allow it, set the 'AllowedLogicalOperators' property on EnableQueryAttribute or queryvalidationsettings."

Hi @accorti ,

Could you please share a bit more about the displayName column in your customers data source? Is it a Text type column?

Could you please share a screenshot about the issue with the formula in your app?

 

For your first question, when you set the Items property of the ComboBox to "customers", you need to set the Primary text field and SearchField property to proper column, e.g. displayName.

1.JPG

If you set the Items property of the ComboBox to the Distinct(...) formula I mentioned above, you need also to set the Primary text field and SearchField property to Result.

 

For your second question, based on the issue that you mentioned, I have made a test on my side, and don't have the issue that you mentioned. Please check if you have type the above LookUp formula within the Text property of the Label control.

You could consider set the Items property of the ComboBox to following:

customers

set the Primary text field and SearchField property to displayName.

 

Set the Text property of the Label to following formula:

If(
   IsBlank(ComboBox3.Selected.displayName),
   Blank(),
   LookUp(customers, displayName = ComboBox3.Selected.displayName, number)
)

Note: Do not type customers.displayName within your LookUp formula, the result the customers.displayName formula returns is a Table value. If you want to compare the displayName column in your customers data source with the selected value in your ComboBox, please consider specify the displayName column in the LookUp formula directly.

 

Best regards,

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

@v-xida-msft Appreciate the time you put into this response. DisplayName is a text field that should display a list of customer names (company name). I would like to use a combobox populated with the customer name to look up their corresponding customer ID number in the label control. 

 

 

1) The only option I'm getting for the combobox primary text and search field is "result" (see screenshot below). 

 

Test.png

 2) I've tried the formula you specified for the label text property. I'm receiving a few errors. See below. 

error1.png

 

error3.png

 

error2.png

 

 

If you were able to reproduce this solution with no issues, it would appear that I have some property or formula set incorrectly. I'll keep checking to see if there is something incorrect that stands out. Thanks

 

Hi @accorti ,

Based on the formula that you mentioned, I think there is something wrong with it. If you could only get "Result" option from the Primary text property and SearchField property in your ComboBox, on your side, you need to modify your formula as below:

Set the Text property of the Label to following formula:

If(
   IsBlank(ComboBox3.Selected.Result),
   Blank(),
   LookUp(customers, displayName = ComboBox3.Selected.Result, number)
)

Note: Please type ComboBox3.Selected.Result rather than ComboBox3.Selected.displayName

 

Best regards,

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Helpful resources

Announcements

Celebrating the May Super User of the Month: Laurens Martens

  @LaurensM  is an exceptional contributor to the Power Platform Community. Super Users like Laurens inspire others through their example, encouragement, and active participation. We are excited to celebrated Laurens as our Super User of the Month for May 2024.   Consistent Engagement:  He consistently engages with the community by answering forum questions, sharing insights, and providing solutions. Laurens dedication helps other users find answers and overcome challenges.   Community Expertise: As a Super User, Laurens plays a crucial role in maintaining a knowledge sharing environment. Always ensuring a positive experience for everyone.   Leadership: He shares valuable insights on community growth, engagement, and future trends. Their contributions help shape the Power Platform Community.   Congratulations, Laurens Martens, for your outstanding work! Keep inspiring others and making a difference in the community!   Keep up the fantastic work!        

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started: https://aka.ms/CS_Copilot_Cookbook_Gallery   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!      

Tuesday Tip | How to Report Spam in Our Community

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Community Roundup: A Look Back at Our Last 10 Tuesday Tips

As we continue to grow and learn together, it's important to reflect on the valuable insights we've shared. For today's #TuesdayTip, we're excited to take a moment to look back at the last 10 tips we've shared in case you missed any or want to revisit them. Thanks for your incredible support for this series--we're so glad it was able to help so many of you navigate your community experience!   Getting Started in the Community An overview of everything you need to know about navigating the community on one page!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Ranks and YOU Have you ever wondered how your fellow community members ascend the ranks within our community? We explain everything about ranks and how to achieve points so you can climb up in the rankings! Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Powering Up Your Community Profile Your Community User Profile is how the Community knows you--so it's essential that it works the way you need it to! From changing your username to updating contact information, this Knowledge Base Article is your best resource for powering up your profile. Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Blogs--A Great Place to Start There's so much you'll discover in the Community Blogs, and we hope you'll check them out today!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Unlocking Community Achievements and Earning Badges Across the Communities, you'll see badges on users profile that recognize and reward their engagement and contributions. Check out some details on Community badges--and find out more in the detailed link at the end of the article! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Blogging in the Community Interested in blogging? Everything you need to know on writing blogs in our four communities! Get started blogging across the Power Platform communities today! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Subscriptions & Notifications We don't want you to miss a thing in the community! Read all about how to subscribe to sections of our forums and how to setup your notifications! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Getting Started with Private Messages & Macros Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Community User Groups Learn everything about being part of, starting, or leading a User Group in the Power Platform Community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Update Your Community Profile Today! Keep your community profile up to date which is essential for staying connected and engaged with the community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Thank you for being an integral part of our journey.   Here's to many more Tuesday Tips as we pave the way for a brighter, more connected future! As always, watch the News & Announcements for the next set of tips, coming soon!

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today! https://aka.ms/PowerUp  

Top Solution Authors
Top Kudoed Authors
Users online (4,037)