cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
sachk_1
Helper I
Helper I

Set field Validations in model driven powerapps form

Hi,


I'm stuck with development of a power apps form.

I have a form and it collects few details as name , email, amount etc. The problem is there will be multiple email addresses. So in the form I think its difficult to add a button " Add New" near the email field and collect dynamic count of emails. If have a way to do this its very helpful.


With the no way of above, So I tried to add a text field and adding a validation like Email1,Email2,etc.


I need how to add a expression to validate as above. I saw some articles here and not resolved my question.

 

Thank you.

 

11 REPLIES 11
ANB
Super User
Super User

HI @sachk_1 , Have you tried business rules? Please check this: https://learn.microsoft.com/en-us/power-apps/maker/model-driven-apps/create-business-rules-recommend...

 

IF you want me to build the expressions then please share complete details.

-----------------------------------------------------------------------------------------------------------------------------

I hope this helps.

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs up.👍

Thanks,
ANB


Ethan_R
Super User
Super User

Hi @sachk_1 ,

 

For simple email validation, you can use the preview feature [Link: Blog]. If you can carry out JS and get result of this field then you can then auto validate and append into your concatenated field or simply use for validation.

 

There are few ways I'll share, you have to pick based on what suits your use-case better:

1. Considering you are keeping a single line of text as storing multiple emails separated with ';'

You can validate using JavaScript on the particular field and if there's any error you can set Field Error / show Error as pop-up / don't save.

 

2. Let's consider you still need to keep individual emails separate but still capture multiple on the record, you can use sub-grid related to that entity. (Same concept like Account - Contact) with 1-N relation but if you have multiple emails on several other records then you need to make a middle entity/table for capturing emails with N:N relationship.

 

Hope this helps

@Ethan_R 

Hi Ethan,  This is the process. This is a simple app. user enter data and for some records there will be multiple email addresses. Some records only have one. I'm not done any development using subgrid. For this concern whats the best way? using a text field or using subgrid? if have any example way please post here. Thank you.

Hi @sachk_1 ,

 

You will find many blogs and docs for creating sub-grid [Blog]

Here's 1 of my old project where I have implemented multiple emails to send group email. 

This is based on a sub-grid (another Table) in respect to this Table as Lookup.

It will look like this

Ethan_R_0-1705648231233.png

 

You can use the new Table with validating email address field and if yes, you can save the email address along with the name of the person and regarding to which Record it is attached to (currently this is 1:N relation, so duplicate can be present if same email is added on other record)

 

For using same email on several records, create Email List and a middle table (N:N relation) so your middle table will be the sub-grid for your mail Table and Email table will be separate.

Just to describe in image in-case it confuses (Here's N:N relationship setup); 
Here "<->" represents Lookup to those tables (If Master email is changed, it affects all instances)

Ethan_R_1-1705648752814.png

 

Here's (1:N relationship Setup):

"=" represents direct Lookup to Table A but Email will be string (If 1 email is changed, others won't be affected)

Ethan_R_2-1705648886532.png

 

Hope this helps

Hi,

 

I appreciate your suggestion and help me. Actually the scenarion in here is like this. This is a simple model driven app to collect data, It is like a data entry form. So when a new record is creating there will be single or multiple email addresses, these are not in our database. So What I want here is when entering data i just need to capture that input email is in correct form.

 

If we use email address field it allows for one email. Thats the issue.

So I try to create a multi line text field and check email1;email2 like this in correct form.

 

IF you have any suggestion please let me know.

 

Thank you.

Hi @sachk_1 ,

 

Since sub-grid of email address would be nice but I understand you want to maintain in a single/multi-line of text field and then compare in your Form.

 

I'd suggest go with JavaScript approach where you validate the email addresses in the field separated with ';' so JS can check the structure of the email address and if any email is incorrect to throw FieldError on that field.

This is simple approach to check if entered emails in the field are valid or not.

 

You can trigger the function for onLoad and onChange of the field.

var validateEmails = 
{
    Context: null,
    checkEmails: (emailString) => 
    {   
        var formContext = validateEmails.Context;
        var emails = emailString.split(';');

        // Regular expression for email validation
        var emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;

        // Validate each email address
        for (let i = 0; i < emails.length; i++) {
            var email = emails[i].trim(); // Remove leading/trailing whitespaces

            if (!emailRegex.test(email)) {
                console.error(`Invalid email address: ${email}`);
                formContext.getControl("fieldName").setNotification(`Email not Valid : ${email}`);
            }
        }
    },
    execute: (executionContext) => 
    {
        var formContext = executionContext.getFormContext();
        validateEmails.Context = formContext;
        if(formContext.getAttribute("fieldName"))
        {
            var emailString = formContext.getAttribute("fieldName").getValue();
            if(emailString != null)
            {
                validateEmails.checkEmails(emailString.toString());
            }
        }
    }
}

Replace your "fieldName" and execute the function "validateEmails.execute()" and pass execution context by enabling checkbox on form.

 

Hope this helps

Hi Thank you. Is there any article or way how i implement this JS code in model driven app? big help.

Hi @sachk_1 ,

 

You can check following documentations

Microsoft Documentation

This also might help

Also, here's a blog that can help with based on similar use-case [Blog Link]

 

Hope this helps

HI,

 

I didnt get this - execute the function "validateEmails.execute()" and pass execution context by enabling checkbox on form

 

I saved and uploaded this to web resource. Now what should i given for function name? In your code not set function right?

Because of this I got an error in form, web resource method does not exist.

 

Can you help me.

Helpful resources

Announcements

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!

Tuesday Tip | How to Get Community Support

It's time for another Tuesday Tip, 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.       This Week: All About Community Support Whether you're a seasoned community veteran or just getting started, you may need a bit of help from time to time! If you need to share feedback with the Community Engagement team about the community or are looking for ways we can assist you with user groups, events, or something else, Community Support is the place to start.   Community Support is part of every one of our communities, accessible to all our community members.   Within each community's Community Support page, you'll find three distinct areas, each with a different focus to help you when you need support from us most. Power Apps: https://powerusers.microsoft.com/t5/Community-Support/ct-p/pa_community_support Power Automate: https://powerusers.microsoft.com/t5/Community-Support/ct-p/mpa_community_support Power Pages: https://powerusers.microsoft.com/t5/Community-Support/ct-p/mpp_community_support Copilot Studio: https://powerusers.microsoft.com/t5/Community-Support/ct-p/pva_community-support   Community Support Form If you need more assistance, you can reach out to the Community Team via the Community support form. Choose the type of support you require and fill in the form accordingly. We will respond to you promptly.    Thank you for being an active part of our community. Your contributions make a difference!   Best Regards, The Community Management Team

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  

Tuesday Tip: Community User Groups

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: Community User Groups and YOU Being part of, starting, or leading a User Group can have many great benefits for our community members who want to learn, share, and connect with others who are interested in the Microsoft Power Platform and the low-code revolution.   When you are part of a User Group, you discover amazing connections, learn incredible things, and build your skills. Some User Groups work in the virtual space, but many meet in physical locations, meaning you have several options when it comes to building community with people who are learning and growing together!   Some of the benefits of our Community User Groups are: Network with like-minded peers and product experts, and get in front of potential employers and clients.Learn from industry experts and influencers and make your own solutions more successful.Access exclusive community space, resources, tools, and support from Microsoft.Collaborate on projects, share best practices, and empower each other. These are just a few of the reasons why our community members love their User Groups. Don't wait. Get involved with (or maybe even start) a User Group today--just follow the tips below to get started.For current or new User Group leaders, all the information you need is here: User Group Leader Get Started GuideOnce you've kicked off your User Group, find the resources you need:  Community User Group ExperienceHave questions about our Community User Groups? Let us know! We are here to help you!

Super User of the Month | Ahmed Salih

We're thrilled to announce that Ahmed Salih is our Super User of the Month for April 2024. Ahmed has been one of our most active Super Users this year--in fact, he kicked off the year in our Community with this great video reminder of why being a Super User has been so important to him!   Ahmed is the Senior Power Platform Architect at Saint Jude's Children's Research Hospital in Memphis. He's been a Super User for two seasons and is also a Microsoft MVP! He's celebrating his 3rd year being active in the Community--and he's received more than 500 kudos while authoring nearly 300 solutions. Ahmed's contributions to the Super User in Training program has been invaluable, with his most recent session with SUIT highlighting an incredible amount of best practices and tips that have helped him achieve his success.   Ahmed's infectious enthusiasm and boundless energy are a key reason why so many Community members appreciate how he brings his personality--and expertise--to every interaction. With all the solutions he provides, his willingness to help the Community learn more about Power Platform, and his sheer joy in life, we are pleased to celebrate Ahmed and all his contributions! You can find him in the Community and on LinkedIn. Congratulations, Ahmed--thank you for being a SUPER user!  

Top Solution Authors
Top Kudoed Authors
Users online (3,455)