cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Vishal2
Helper I
Helper I

How to make a text box required when defining actions?

So, i am using a farily simple single page form in powerapps. What i want to do is something like this.

if,

DataCardValue12.Selected.Value = "Food"

 

When defining actions,

I want to make another specific mandatory. i.e. when datacardvalue12 is set to Food. Datacard Allergen is required(Mandatory)

 

What i have tried is add a rule. See screenshot.

 

Thanks heaps in advance 🙂Untitled.png

1 ACCEPTED SOLUTION

Accepted Solutions
RobEitzen
Advocate I
Advocate I

Create a variable and set the default value to false (field is not required) when the app starts, the screen is visible, or when a button is clicked.  Set the data card Allergen's Required property to your variable.  In the OnChange event for DataCardValue12's textbox to test the text and set the variable appropriately.

For example:

Button - Navigates to edit form's screen OnSelect: 

UpdateContext({varRequireAllergen: false})

Text Input Box - DataCardValue12.OnChange: 

UpdateContext({varRequireAllergen: If(DataCardValue12.Text="Food", true, false)})

Allergen_DataCard - Required property:

varRequireAllergen

The PowerApps default error handling for a required field will take over from there.

 

View solution in original post

3 REPLIES 3
RobEitzen
Advocate I
Advocate I

Create a variable and set the default value to false (field is not required) when the app starts, the screen is visible, or when a button is clicked.  Set the data card Allergen's Required property to your variable.  In the OnChange event for DataCardValue12's textbox to test the text and set the variable appropriately.

For example:

Button - Navigates to edit form's screen OnSelect: 

UpdateContext({varRequireAllergen: false})

Text Input Box - DataCardValue12.OnChange: 

UpdateContext({varRequireAllergen: If(DataCardValue12.Text="Food", true, false)})

Allergen_DataCard - Required property:

varRequireAllergen

The PowerApps default error handling for a required field will take over from there.

 

View solution in original post

Hey Rob,

Thank-you for your response.

 

I managed to follow through to your instructions but seems to have hit a barrier.

 

I changed the approach very slightly since i am using a choice type and not a text box.

 

In the onSelect of the choice I have:

UpdateContext({varRequireAllergen: false})

in the onChange of the choice I have:

UpdateContext({varRequireAllergen: If(DataCardValue12.Selected.Value = "Food", true, false)})

 

And in the datacard that is supposed to turn mandatory after selecting food, I have 

varRequireAllergen

 

I have noticed that the data card does turn mandatory for a partial second as soon as i change the choice to Food, and changes it back. Your help is really appreciated mate. Thank-you

Untitled.png

I managed to fix it using,

 

UpdateContext({varRequireAllergen: If(DataCardValue12.Selected.Value = "Food", true, false)}) in the onchange and removing everything else.

 

thank-you for your help.

Helpful resources

Announcements
PA User Group

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group

Power Query PA Forum 768x460.png

Check it out!

Did you know that you can visit the Power Query Forum in Power BI and now Power Apps

V3_PVA CAmpaign Carousel.png

Community Challenge - Giveaways!

Participate in the Power Virtual Agents Community Challenge

Carousel 2021 Release Wave 2 Plan 768x460.jpg

2021 Release Wave 2 Plan

Power Platform release plan for the 2021 release wave 2 describes all new features releasing from October 2021 through March 2022.

Carousel April Dunnam Updated 768x460.jpg

Urdu Hindi D365 Bootcamp

Dont miss our very own April Dunnam’s The Developer Guide to the Galaxy! Find out what the Power Platform has to offer for the traditional developer.

Top Solution Authors
Top Kudoed Authors
Users online (2,383)