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KCh
Advocate II
Advocate II

Save the Gallery's choise for another page

Hi all!

 

I have a Power Apps Canvas app with several pages. On page1 I have a Gallery1. The formula for the Gallery's Items is:

Sort(
    Filter('Modul-Expert_demo', Expert.Experts_demo = '1_Expert_Dropdown'.Selected.Experts_demo),
    Modul_Number,
    Ascending
)

In this Gallery I display information in Label. The formula for the Label's Text is:

LookUp(Modules_demo, cr7d9_modules_demoid=ThisItem.Modul.Modules_demo,Modul)

 

On the page2 I have similar Gallery (with the same formulas) and a Button.

When I press the Button I move to the page1. OnSelect formula is:

Navigate(
    '3 NewForm_Scr',
    ScreenTransition.Fade, 
    {MemberForEdit: '4_Member_Dropdown'.Selected.Member, 
    ModulForEdit: '4_ProfModules_Gallery'.Selected.'4_Title_Module'}
)

I want to save the choice from the Gallery on the page2 and when I move to the page1 I would like to see this choice in the Gallery1. I try to use for this variable "ModulForEdit" and set up in as Default for Gallery1. But it doesn't work.

 

Could you please help me to find a solution?

 

Thanks!

 

4 REPLIES 4
v-xida-msft
Community Support
Community Support

Hi @KCh ,

Could you please share a bit more about your scenario?

Do you want to pass the selected value from your Page2 back to Page1 when you click the Button?

Further, which column do you use to compare with the passed variable value (MemberForEdit & ModulForEdit)?

 

Based on the formula that you mentioned, I think there is something wrong with it. Please consider modify your Navigate formula as below:

Navigate(
         '3 NewForm_Scr',
          ScreenTransition.Fade, 
          {
            MemberForEdit: '4_Member_Dropdown'.Selected.Member, 
            ModulForEdit: '4_ProfModules_Gallery'.Selected   // Modify formula here
          }
)

 

Set the Default property of the Gallery1 to following:

If(
   !IsBlank(ModulForEdit),
    ModulForEdit
)

Set the TemplateFill property of the Gallery1 to following (highlight the selected item in the Gallery1😞

If(ThisItem.IsSelected,RGBA( 95, 158, 160, 1 ),RGBA(0, 0, 0, 0))

Note: I assume that the Gallery1 and Gallery2's Items proeprty have same Sort formula as you mentioned.

 

Best regards,

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi, @v-xida-msft !

Thank you for your reply!

 

It is true - I have a problem with the last part of the formula "Navigate" on the page2. In this part: ModulForEdit: '4_ProfModules_Gallery'.Selected. //I can't understand what I should put here.

 

I think it is because the complex value that I show in this Gallery. I should try to explain.

I have 3 Entities in Common Data Model:

1) 'Modules_demo' - the list of all modules in my App

2) 'Experts_demo' - the list of all Experts in my App

3) 'Modul-Expert_demo' - the list of Modules with assign Expert for each Modul.

 

In my App I choose the Expert (in the page before Page1 in my example). This choice have impact on the list of Modules that show in Gallery on the Page1 - I show only modules that assigned to the selected Expert.

So the formula for the Gallery is:

Items = 
Sort(
    Filter('Modul-Expert_demo', cr7d9_Expert.Experts_demo = '1_Expert_Dropdown'.Selected.Experts_demo),
    cr7d9_modul_number,
    Ascending
)

When I use only this formula I see Identificators in my Gallery. That's why I have a formule for the 'Text" in this Gallery:

Text =
LookUp(Modules_demo, cr7d9_modules_demoid=ThisItem.Modul.Modules_demo,Modul)

This formula allows me to see the name of Modules instead their ID.

 

I think because of this I have a trouble to find a solution what should I put in the formula that you mentioned.

 

When I try to put formula as I mentioned in my 1st post and put the formula in "Default" that you mentioned - I have an error in the Gallery1: "Invalid formula. Expected a value compatible with 'Items'."

 

PS Yes, Gallery1 and Gallery2 have the same properties.

Hi @KCh ,

Is the Items property of Gallery1 and Gallery2 set to same Filter formula?

 

Please set the OnSelect property of the "Navigate" button in your Page2 to following:

Navigate(
    '3 NewForm_Scr',
    ScreenTransition.Fade, 
    {MemberForEdit: '4_Member_Dropdown'.Selected.Member, 
    ModulForEdit: '4_ProfModules_Gallery'.Selected.'4_Title_Module'.Text}
)

 

Set the Default property of the Gallery1 to following:

LookUp(
       Filter('Modul-Expert_demo', cr7d9_Expert.Experts_demo = '1_Expert_Dropdown'.Selected.Experts_demo),
       LookUp(Modules_demo, cr7d9_modules_demoid = Modul.Modules_demo).Modul = ModulForEdit
)

Please consider take a try with above solution, check if the issue is solved.

Note: I assume that the '4_Title_Module' represents a Label control within the Gallery2 in your Page2, which display the Module name.

 

Best regards,

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.


@v-xida-msft wrote:

Is the Items property of Gallery1 and Gallery2 set to same Filter formula?


Yes.

 


@v-xida-msft wrote:

Note: I assume that the '4_Title_Module' represents a Label control within the Gallery2 in your Page2, which display the Module name.


Yes, that's right.

 

I've updated OnSelect and Default properties with formulas that you mentioned. But that doesn't work. I don't have an arrer now, but when I go from Page2 to Page1 the Gallery on the Page1 doesn't select the Modul that was selected on the Page2.

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