Dynamic screen reference in Navigation possible?

[IanN]

Hello,

I have a table setup with a TableRef column which contains the name of the Screen I want to navigate. I want to click an icon in my gallery and dynamically go to whichever screen that gallery entry refers to

The way im thinking something like this should work:

OtherTablesGallery.OnSelect = Navigate(OtherTablesGallery.Selected.TableRef,ScreenTransition.None)

But it doesn't work, I see a solution here: 

https://powerusers.microsoft.com/t5/PowerApps-Forum/Navigate-to-screen-selecting-element-from-the-li...

But I don't understand completely what it is doing and if its suitable.

[irinak · Accepted solution]

Hi IanN,

The trick here is that you need to pass the screen as an object instead of just using the name. The post you found shows an example on how to do that.

1) Create a collection that has a mapping from screen name to screen object. For example:

ClearCollect(Screens, { Name: "Screen1", Target: Screen1 }, { Name: "Screen2", Target: Screen2 }, { Name: "Screen3", Target: Screen3 })

You can set the above when the first screen loads, i.e. Screen1.onSelect

2) Set your onSelect action to:

Navigate(Lookup(Screens, Name = OtherTablesGallery.Selected.TableRef, Target), None)

Hope this works for you!

Irina

[IanN]

That works brilliantly, thank you for the extra explanation.

Perhaps a function could be added to turn a text value into a screen object e.g.

Object("ScreenName")

[Anonymous]

Where do I enter this function: 

ClearCollect(Screens, { Name: "Screen1", Target: Screen1 }, { Name: "Screen2", Target: Screen2 }, { Name: "Screen3", Target: Screen3 })

[sk9972252270]

Guys, I am new to PowerApps, I am using multiple screens (BroswerGallery) for Data view based on filters of same data source. Since the data format is same for all, I don't want multiple View, Add & Edit pages. Since upon each action it looks for a data source, I am finding difficult to use a single view, add & edit page. 

Need your help and step by step guidance.

[Dharanya]

Hi,

I have used the same exact formula as below. But nothing happens and the screen stand still.

Formula in the On strat: ClearCollect(Screens,{Name:"Regular Pay",Target:RegularPay_Screen},{Name:"Payment Extension",Target:PaymentExtension_Screen})

Formula on the button:Navigate(LookUp(Screens,Name=drp_DOARequiredFor.Selected.Value,Target),ScreenTransition.None)

drp_DOARequiredFor is a drop down field and has the values, "Regular Pay","Payment Extension".

Please help me understand why it is not navigating to the respective screen. Also please note that there is no error in the formula