Redirect unauthorized users using Navigate on screen OnVisible

Question

I have an issue with Screen On visible parameter condition if user unauthorized else navigate, in case user is not authorized to view a specific in screen, then the user will be redirect to another screen. if there is any another option please provide me with a solution.

If(
    IsBlank(
            Param("ID")
   ),
   0,
   If (
        LookUp(
                <<Table_Name>>, 
                <<Field_name>> = Param("ID"),
                <<Field_name>>
              ) = Office365Users.MyProfile().Mail,
        Param("ID"),
        Navigate(Auth_404)
      )
)

Thanks in advance

This line "Navigate(Auth_404)" underlined with red. Powerapps doesn't allowed me to add Navigate function on Screen OnVisible property. is there any other option to resolve this issue. — Mustafa Alqanbar, Nov 05 '19 at 14:42
That's true you cannot navigate from On Screen Visible property, you will have to think of different way. — AnkUser, Nov 05 '19 at 15:15

score 1 · Accepted Answer · answered Nov 07 '19 at 22:38

1

Rather than executing the code OnVisible of your first screen, have you considered moving the code to OnStart of the application?

answered Nov 07 '19 at 22:38

SeaDude

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score 0 · Answer 2 · answered Nov 07 '19 at 11:22

You can attain this by a workaround,

Have a button 'button_A' with On select = Navigate(Auth_404) and then change the screen onvisible to

If(
IsBlank(
        Param("ID")),0,If (
    LookUp(
            <<Table_Name>>, 
            <<Field_name>> = Param("ID"),
            <<Field_name>>
          ) = Office365Users.MyProfile().Mail,
    Param("ID"),
    Select(button_A)
  ))

for more info on Trigger OnSelect on a Button

Redirect unauthorized users using Navigate on screen OnVisible

2 Answers2