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davidtheilman
Frequent Visitor

Populate a Datacard from one Screen to another Datacard on another Screen

Hello:

 

I am creating a Sales Proposal PowerApp that has many choices of products, each product has it's own screen

 

"Screen 1" is just customer information 

"Screen 2 through 10" are different products that the sales rep can choose from, They can choose 1 product or all 10

 

Each product screen asks for the customer information and I do not want the sales rep to have to fill it out again each time they pick another product for the proposal. Each screen represents a different SharePoint List

 

Screen 1

ScreenA.png

Screen 2 through 10

Screen2.png

 

Once Screen 1 is populated and no matter which screen the sales rep chooses, I want the customer information pre-populated from Screen 1

 

PATree.png

I have tried this, however its not working

If(editform2.mode=FormMode.New,LookUp(CustomerName_DataCard7,ItemNumber=DataCardValue406.Text,CutomerName))

 

Thanks for the help in advance!

 

 

 

 

 

 

11 REPLIES 11
vribeiro
Frequent Visitor

What if you try to create global variables with the Screen 1 objects values?

 

For example, on the event below

vribeiro_0-1617107618668.png

 

 

Try to set the values of the objects. like

Set(DCV406,vribeiro_1-1617107683849.png.text)...

 

Then on the other screens, you populate where you want with DCV406.text...

RandyHayes
Super User
Super User

@davidtheilman 

Set the Default property of DataCardValue44 (and any other ones you need) to the following formula:

Coalesce(Parent.Default,  Form8.Updates.CutomerName)

 

I hope this is helpful for you.

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@vribeiro 

 

I am halfway there, thanks!

 

After I created the variable, I then when to the Screen - Datacard and for Default I added this

default.png

 

My value in the screen is now "false"

 

CN.png

The source has data

 

CN1.png

 

What am I doing wrong on the when entering Default=DCV406

 

Thank You Again!

 

 

RandyHayes
Super User
Super User

@davidtheilman 

You cannot assign values like that in PowerApps.

Please change the formula on the TextInput control to:

   Coalesce(Parent.Default,  Form8.Updates.CutomerName)

 

Make sure you have not changed the Default property on the DataCard.  It should still be ThisItem.yourFieldName

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David, just missed the UpdateContext, take a look i just create a simple example:

 

Set the variable on the On Start as you did

vribeiro_0-1617112159072.png

On the control that you are using to navigate to the other screens, set the UpdateContext

vribeiro_1-1617112183726.png

And also on the screen that you navigate in, set on the OnVisble another UpdateContext 

 

vribeiro_2-1617112205790.png

 

RandyHayes
Super User
Super User

@vribeiro 

You are mixing context and global variables in your examples.  They are not connected.

The solution is quite simple:

     Coalesce(Parent.Default,  Form8.Updates.CutomerName)

There is no need for variables as the first form already has the values needed...just reference it!

 

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Got it, it works for me in this way, didn't know about this Coalesce function! Thanks for that'll try to start using this approach also.

 

Always learning 😃

RandyHayes
Super User
Super User

@vribeiro 

That's the spirit...keep on learning! 😁

Yes, learn the Coalesce function - it is one of the most powerful and useful functions in PowerApps.  Pus it will save you a lot of typing time...

 

If(IsBlank(myControl.Text), If(IsBlank(myOtherControl.Text), "Something"), myOtherControl.Text), myControl.Text)

is replaced with:

Coalesce(myControl.Text, myOtherControl.Text, "Something")

 

First argument that is NOT blank in a Coalesce will be used.

Just make sure you are matching types.

ex.   Coalesce("Text", 2) will not work.  Coalesce("Text", "2") would (although it would simply return the first - but the concept here is coalesce the same types)

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@RandyHayes 

 

Is this correct? I am getting an error

 

data1.png

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