cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Anonymous
Not applicable

Linking combo boxes

Hi all

 

I'm new to powerapps so please forgive me if this is an obvious question! I'm struggling to link 2 combo boxes so that one will display data based on what was entered into the last.

 

Both boxes get data from a table (see file). The first displays data from the first column (called Column1) and I'd like the second to show the record associated with said column (but obviously not the data from Column1) however I can't get it to work.

 

Here's what I've done - where have i gone wrong?

Current

 

When you click on the combobox it displays everything in column B rather than searching through the row

 

 

EDIT: Looks like the picture isn't loading so here is what i typed: 

 

LookUp(Sheets_List, Column1 = "ComboBox2.SelectedItems")

 

Into both the search and display field boxes in combobox 3 - where combobox 2 is where the first selection from that table takes place

1 ACCEPTED SOLUTION

Accepted Solutions
v-xida-msft
Community Support
Community Support

Hi @Anonymous,

 

Which column do you want to use within the second Combo box control?

Do you want to display all other column values associated with the selected Column1 value (from the first combo box control) within the second Combo box control?

 

I assume that you want to display all other column values associated with the selected Column1 value within the second Combo box control, I have made a test on my side, please take a try with the following workaround:8.JPG

 

Set the Items property of the first Combo box control to following formula:

 

Table1.Column1

Note: The Table1 represents the Excel table on my side, on your side, you should type following formula:

Sheets_List.Column1

 

Set the OnChange property of the first Combo box control to following formula:

 

 

Clear(Collection1);
ForAll(
RenameColumns(ComboBox2.SelectedItems,"Column1","Iterator"),
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'0')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'1')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'2')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'3')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'4')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'5')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'6')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'7')})
)

 

 

 

Set the Items property of the second Combo box control to following formula:

Filter(Collection1,Not(IsBlank(ListItem)))

The GIF image as below:Test1.gif

 

 

 

 

Best regards,

Kris

 

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.

View solution in original post

10 REPLIES 10
dinusc
Employee
Employee

Hello Colleen,

 

Please note that:

1. "SelectedItems" is an array of items

2. LookUp returns a record while ComboBox.Items expects a table.

Please try this:

Filter(Sheets_List, Column1 in ComboBox2.SelectedItems.Column1)

Anonymous
Not applicable

Hi - thanks for the reply.

 

No error is being thrown but the box always looks empty - do you know why this would be? Also does this formula go in the search fields or display fields box (sorry i'm very new to this!)

wyotim
Resident Rockstar
Resident Rockstar

Hello @Anonymous and welcome to PowerApps!

 

To check my understanding, are you trying to collect the row of items in columns 0 to 7 (Excel columns B through I) in a combo box based on what is selected from Column1 (Excel column A)? If so, I have an attempt at a solution, though it isn't too elegant.

 

One reason why you are getting the items in column B is that the combo box DisplayFields area defaults to the first item in an alphanumeric order, so the 0 column is being displayed. Second is that these functions tend to operate over columns of data and not rows. 

 

Now, there may be a way to operate on the row (and hopefully someone will speak up with that solution) but here is my solution. You would put this in the OnSelect section of the combo box where you are selecting the Column1 value:

 

Clear(RowListCollection);
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '0')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '1')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '2')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '3')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '4')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '5')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '6')});
Collect(RowListCollection, {ListItem: LookUp(Sheets_List, Column1 = ComboBox2.Selected.Column1, '7')})

To break down what it is doing, there is a collection being made to store the row values when a value is chosen for Column1 in ComboBox2. The first task is to clear the collection so only the values in the row for the selected item are used (rather than adding to values previously collected). The next 8 statements are collecting each of those values, one from each column in the row. The end result is a collection with one column titled ListItem that has the values of the row based on what is in Column1.

 

Now, this will leave a bunch of blank items in the collection when there are empty spaces in a selected column. To take care of this, in the Items section of ComboBox3 put:

 

Filter(RowListCollection, Not(IsBlank(ListItem)))

This connects the collection that was just made to the combo box and filters out any blanks so you will only have fields with data to select from.

 

If it were possible, a better approach would be to format your data into two columns, such as:

Column1          Column2

ROCKSTAR    ROCKSTAR KNEE

ROCKSTAR    ROCKSTAR ANKLE

...                     ...

 

This would greatly simplify the approach needed and perform a bit better than my solution. Plus, it makes it easier to have more than 8 items, if that ever comes up. It may not be possible, but I figured I would just comment on that in case it is.

 

Please let me know if this works out or if you encounter any issues or questions.

The formula goes in the "Items" property of another control:

ComboBox1.Items=Filter(Sheets_List, Column1 in ComboBox2.SelectedItems.Column1)

v-xida-msft
Community Support
Community Support

Hi @Anonymous,

 

Which column do you want to use within the second Combo box control?

Do you want to display all other column values associated with the selected Column1 value (from the first combo box control) within the second Combo box control?

 

I assume that you want to display all other column values associated with the selected Column1 value within the second Combo box control, I have made a test on my side, please take a try with the following workaround:8.JPG

 

Set the Items property of the first Combo box control to following formula:

 

Table1.Column1

Note: The Table1 represents the Excel table on my side, on your side, you should type following formula:

Sheets_List.Column1

 

Set the OnChange property of the first Combo box control to following formula:

 

 

Clear(Collection1);
ForAll(
RenameColumns(ComboBox2.SelectedItems,"Column1","Iterator"),
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'0')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'1')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'2')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'3')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'4')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'5')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'6')});
Collect(Collection1,{ListItem:LookUp(Table1,Column1=Iterator,'7')})
)

 

 

 

Set the Items property of the second Combo box control to following formula:

Filter(Collection1,Not(IsBlank(ListItem)))

The GIF image as below:Test1.gif

 

 

 

 

Best regards,

Kris

 

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.
Anonymous
Not applicable

Everyone - I'd just like to thank you all for your help and advice. This is a lovely community and I'm very happy you put in the time to help me with this project 🙂 

 

@v-xida-msft I've followed through with your solution and it seems to work however no text is being displayed. I've made sure to save and publish the work in case that would have made a difference but the same problem still occurs - I also deleted and re-added the boxes in case previous attempts hindered your solution. What have I done wrong?

ComboBoxes Not Working.gif

 (I know this GIF shows it not published - but i tried it again after recording this clipping and the same result occured)

 

Thank you millions in advance,

Colleen 

Hi @Anonymous,

 

I have made a test on my side again, the formula that I provided works well and don't have the issue that you mentioned.

 

Please take a try to re-create your app and try the formula that I provided within the Combo box controls again, then check if the issue is solved.

 

In addition, you could also consider take a try to add a Drop down control instead of the second Combo box control within your app, then set the Items property of the Drop down control to following formula:

Filter(Collection1,Not(IsBlank(ListItem)))

Then check if the issue is solved on your side.

 

More detaisl about the Drop down control in PowerApps, please check the following article:

Drop down control

 

Best regards,

Kris

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.
Anonymous
Not applicable

Thank you so much Kris,

 

You're right this worked perfectly (I've no idea what i did wrong initially!). I really appreciate the help.

 

Warmest regards,

Colleen

 

@v-xida-msftWith this issue being solved, I wanted to follow up on something for my own learning.

 

Your solution was very close to mine aside from your ForAll loop handling of the multi-select in the combo box (awesome, by the way). I assumed that there was some way to iterate through rows of data that I just didn't know about and that my solution (and overly verbose description) was more of a brute force method. It would seem that there is not a way to iterate through rows in the same way that many functions natively do through columns.

 

My question: in PowerApps, is there a way to do/mimic basic data transformations, such as a rows-to-columns transposition as one would do in PowerQuery/Power BI? I ask because I have seen the column/row hybrid data structure that Colleen was working with multiple times in the Excel realm and I was trying to think of a way to handle the scenario of another column being added to that table without having to edit the PowerApps code. Any thoughts?

Helpful resources

Announcements

Copilot Cookbook Challenge | Week 2 Results | Win Tickets to the Power Platform Conference

We are excited to announce the "The Copilot Cookbook Community Challenge is a great way to showcase your creativity and connect with others. Plus, you could win tickets to the Power Platform Community Conference in Las Vegas in September 2024 as an amazing bonus.   Two ways to enter: 1. Copilot Studio Cookbook Gallery: https://aka.ms/CS_Copilot_Cookbook_Challenge 2. Power Apps Copilot Cookbook Gallery: https://aka.ms/PA_Copilot_Cookbook_Challenge   There will be 5 chances to qualify for the final drawing: Early Bird Entries: March 1 - June 2Week 1: June 3 - June 9Week 2: June 10 - June 16Week 3: June 17 - June 23Week 4: June 24 - June 30     At the end of each week, we will draw 5 random names from every user who has posted a qualifying Copilot Studio template, sample or demo in the Copilot Studio Cookbook or a qualifying Power Apps Copilot sample or demo in the Power Apps Copilot Cookbook. Users who are not drawn in a given week will be added to the pool for the next week. Users can qualify more than once, but no more than once per week. Four winners will be drawn at random from the total qualifying entrants. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once. If they are drawn multiple times, another user will be drawn at random. Prizes:  One Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value, does not include travel, lodging, or any other expenses) Winners are also eligible to do a 10-minute presentation of their demo or solution in a community solutions showcase at the event. To qualify for the drawing, templates, samples or demos must be related to Copilot Studio or a Copilot feature of Power Apps, Power Automate, or Power Pages, and must demonstrate or solve a complete unique and useful business or technical problem. Power Automate and Power Pagers posts should be added to the Power Apps Cookbook. Final determination of qualifying entries is at the sole discretion of Microsoft. Weekly updates and the Final random winners will be posted in the News & Announcements section in the communities on July 29th, 2024. Did you submit entries early?  Early Bird Entries March 1 - June 2:  If you posted something in the "early bird" time frame complete this form: https://aka.ms/Copilot_Challenge_EarlyBirds if you would like to be entered in the challenge.   Week 1 Results:  Congratulations to the Week 1 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Copilot Cookbook Gallery:Power Apps Cookbook Gallery:1.  @Mathieu_Paris 1.   @SpongYe 2.  @Dhanush 2.   @Deenuji 3.  n/a3.   @Nived_Nambiar  4.  n/a4.   @ManishSolanki 5.  n/a5.    n/a   Week 2 Results:  Congratulations to the Week 2 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Copilot Cookbook Gallery:Power Apps Cookbook Gallery:1. Kasun_Pathirana1. ManishSolanki2. cloudatica2. madlad3. n/a3. SpongYe4. n/a4. n/a5. n/a5. n/a

Win free tickets to the Power Platform Conference | Summer of Solutions

We are excited to announce the Summer of Solutions Challenge!    This challenge is kicking off on Monday, June 17th and will run for (4) weeks.  The challenge is open to all Power Platform (Power Apps, Power Automate, Copilot Studio & Power Pages) community members. We invite you to participate in a quest to provide solutions to as many questions as you can. Answers can be provided in all the communities.    Entry Period: This Challenge will consist of four weekly Entry Periods as follows (each an “Entry Period”)   - 12:00 a.m. PT on June 17, 2024 – 11:59 p.m. PT on June 23, 2024 - 12:00 a.m. PT on June 24, 2024 – 11:59 p.m. PT on June 30, 2024 - 12:00 a.m. PT on July 1, 2024 – 11:59 p.m. PT on July 7, 2024 - 12:00 a.m. PT on July 8, 2024 – 11:59 p.m. PT on July 14, 2024   Entries will be eligible for the Entry Period in which they are received and will not carryover to subsequent weekly entry periods.  You must enter into each weekly Entry Period separately.   How to Enter: We invite you to participate in a quest to provide "Accepted Solutions" to as many questions as you can. Answers can be provided in all the communities. Users must provide a solution which can be an “Accepted Solution” in the Forums in all of the communities and there are no limits to the number of “Accepted Solutions” that a member can provide for entries in this challenge, but each entry must be substantially unique and different.    Winner Selection and Prizes: At the end of each week, we will list the top ten (10) Community users which will consist of: 5 Community Members & 5 Super Users and they will advance to the final drawing. We will post each week in the News & Announcements the top 10 Solution providers.  At the end of the challenge, we will add all of the top 10 weekly names and enter them into a random drawing.  Then we will randomly select ten (10) winners (5 Community Members & 5 Super Users) from among all eligible entrants received across all weekly Entry Periods to receive the prize listed below. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once overall. If they are drawn multiple times, another user will be drawn at random.  Individuals will be contacted before the announcement with the opportunity to claim or deny the prize.  Once all of the winners have been notified, we will post in the News & Announcements of each community with the list of winners.   Each winner will receive one (1) Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value). NOTE: Prize is for conference attendance only and any other costs such as airfare, lodging, transportation, and food are the sole responsibility of the winner. Tickets are not transferable to any other party or to next year’s event.   ** PLEASE SEE THE ATTACHED RULES for this CHALLENGE**

Celebrating the June Super User of the Month: Markus Franz

Markus Franz is a phenomenal contributor to the Power Apps Community. Super Users like Markus inspire others through their example, encouragement, and active participation.    The Why: "I do this to help others achieve what they are trying to do. As a total beginner back then without IT background I know how overwhelming things can be, so I decided to jump in and help others. I also do this to keep progressing and learning myself." Thank you, Markus Franz, for your outstanding work! Keep inspiring others and making a difference in the community! 🎉  Keep up the fantastic work! 👏👏   Markus Franz | LinkedIn  Power Apps: mmbr1606  

Your Moment to Shine: 2024 PPCC’s Got Power Awards Show

For the third year, we invite you, our talented community members, to participate in the grand 2024 Power Platform Community Conference's Got Power Awards. This event is your opportunity to showcase solutions that make a significant business impact, highlight extensive use of Power Platform products, demonstrate good governance, or tell an inspirational story. Share your success stories, inspire your peers, and show off some hidden talents.  This is your time to shine and bring your creations into the spotlight!  Make your mark, inspire others and leave a lasting impression. Sign up today for a chance to showcase your solution and win the coveted 2024 PPCC’s Got Power Award. This year we have three categories for you to participate in: Technical Solution Demo, Storytelling, and Hidden Talent.      The Technical solution demo category showcases your applications, automated workflows, copilot agentic experiences, web pages, AI capabilities, dashboards, and/or more. We want to see your most impactful Power Platform solutions!  The Storytelling category is where you can share your inspiring story, and the Hidden Talent category is where your talents (such as singing, dancing, jump roping, etc.) can shine! Submission Details:  Fill out the submission form https://aka.ms/PPCCGotPowerSignup by July 12th with details and a 2–5-minute video showcasing your Solution impact. (Please let us know you're coming to PPCC, too!)After review by a panel of Microsoft judges, the top storytellers will be invited to present a virtual demo presentation to the judges during early August. You’ll be notified soon after if you have been selected as a finalist to share your story live at PPCC’s Got Power!  The live show will feature the solution demos and storytelling talents of the top contestants, winner announcements, and the opportunity to network with your community.  It's not just a showcase for technical talent and storytelling showmanship, show it's a golden opportunity to make connections and celebrate our Community together! Let's make this a memorable event! See you there!   Mark your calendars! Date and Time: Thursday, Sept 19th Location: PPCC24 at the MGM Grand, Las Vegas, NV 

Tuesday Tip | Accepting Solutions

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.   To enhance our collaborative environment, it's important to acknowledge when your question has been answered satisfactorily. Here's a quick guide on how to accept a solution to your questions: Find the Helpful Reply: Navigate to the reply that has effectively answered your question.Accept as Solution: Look for the "Accept as Solution" button or link, usually located at the bottom of the reply.Confirm Your Selection: Clicking this button may prompt you for confirmation. Go ahead and confirm that this is indeed the solution.Acknowledgment: Once accepted, the reply will be highlighted, and the original post will be marked as "Solved". This helps other community members find the same solution quickly. By marking a reply as an accepted solution, you not only thank the person who helped you but also make it easier for others with similar questions to find answers. Let's continue to support each other by recognizing helpful contributions. 

Reminder: To register for the Community Ambassador Call on June 13th

Calling all Super Users & User Group Leaders     Reminder: To register for the Community Ambassador Call on June 13th—for an exclusive event for User Group Leaders and Super Users! This month is packed with exciting updates and activities within our community.   What's Happening: Community Updates: We'll share the latest developments and what's new in our vibrant community.Special Guest Speaker: Get ready for an insightful talk and live demo of Microsoft Copilot Studio templates by our special guest.Regular Updates: Stay informed with our routine updates for User Groups and Super Users.Community Insights: We'll provide general information about ongoing and upcoming community initiatives. Don't Miss Out: Register Now: Choose the session that fits your schedule best.Check your private messages or Super User Forum for registration links. We're excited to connect with you and continue building a stronger community together.   See you at the call!  

Top Solution Authors
Top Kudoed Authors
Users online (5,253)