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Matt_Xiao
Regular Visitor

How to Increment a number with a button

Matt_Xiao_0-1623989826120.png

I want to increment the number in a text input by pressing the plus button😅,

I tried Set and UpdateContext in OnSelect but seems not work..

1 ACCEPTED SOLUTION

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ganeshsanap
Memorable Member
Memorable Member

@Matt_Xiao Follow below steps:

 

1. Use below formula on onStart of App or onVisible of screen control: 

 

Set( var1, 0 )

 

2. Set Default property of TextInput1 control to var1.

3. Set onSelect property of button control to: 

 

Set( var1, var1 + 1)

 


Please click Accept as solution & 👍 if my answer helped you to solve your issue. This will help others to find the correct solution easily. If the answer was useful in other ways, please consider giving it ‌‌👍

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10 REPLIES 10
KennyJ
Resolver II
Resolver II

you certainly have the right method so you must have an error somewhere.  

for your input box, the default should be something like varNumber.  Then on the onselect of the button you would have UpdateContext({varNumber: varNumber+1})

 

if this doesn’t work then maybe share what you have put. 

thanks

Hi Kenny, 

Thanks for your reply. Please see the screenshot below

Matt_Xiao_0-1624158594768.png

 

KennyJ
Resolver II
Resolver II

You need to delete that first line and then in the Default of the text box just set it to var1

ganeshsanap
Memorable Member
Memorable Member

@Matt_Xiao Follow below steps:

 

1. Use below formula on onStart of App or onVisible of screen control: 

 

Set( var1, 0 )

 

2. Set Default property of TextInput1 control to var1.

3. Set onSelect property of button control to: 

 

Set( var1, var1 + 1)

 


Please click Accept as solution & 👍 if my answer helped you to solve your issue. This will help others to find the correct solution easily. If the answer was useful in other ways, please consider giving it ‌‌👍

@ganeshsanap 

 

Sorry, jumping on this post. I have created something similar.

Had a couple of questions.

1.  How do I prevent the - button going below zero?

2. Also, how do I link input field to each product as when testing in preview it is increasing all values for each product.

Do I need to add ThisItem.Product in var1? just thinking out loud

Thanks

Ross

 

Screenshot 2022-10-27 114317.png

Hi Ross,


1) You can use the visible, or display mode property of the button based upon the variables value.  I.e, when 0 you could hide the button.  

2) For each input field you need to set the Text property to the name of your variable. You will need a separate variable for each input text.

 

Thanks

Kenny

 

@KennyJ 

Thanks for your response.

I worked out how to hide button so thanks.

For the input field, as you can see if have the first box set as var1 so then next one needs to be var2 from your reply but you can't see how you edit that field as everything you do in the first container is pulled through to the rest when previewing? I'm obviously missing something.

 

Thanks

Ross

Screenshot 2022-10-28 100028.png

Hello @ganeshsanap thank you for your solution 😄

This worked in my gallery, the only problem I'm facing is that the variable is shared through everyline in the gallery, how do I assign a new variable with the same properties to every row that is added?

ganeshsanap
Memorable Member
Memorable Member

@joao_guerreiro Are you using any collection as datasource for gallery (in items property of gallery)? If yes, you can add one more property in collection which will store the number value.

 

It will act as a dynamic variable for each item in collection.


Please click Accept as solution & ‌‌👍 if my answer helped you to solve your issue. This will help others to find the correct solution easily. If the answer was useful in other ways, please consider giving it ‌‌👍

 

For SharePoint/Power Platform blogs, visit: Ganesh Sanap Blogs

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