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 Leader_768x460.jpg

Manage your user group events

Check out the News & Announcements to learn more.

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

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.

PowerPlatform 768x460.png

Microsoft Learn

Check out our new Discover Your Career Path blog post series and get all the details.

Users online (3,375)