Link between the App OnStart and the App StartScreen

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Posted on by johnjohn123

3,506

Inside our App's OnStart >> I have the following formula, to set the DisplayMode of a form:-

Set(
 varRecord,
 LookUp(
 'Online Credit Request',
 ID = Value(Param("onlinecreditrequestid"))
 )
);
If(Param("custommode") = "new",NewForm(Form2),
Param("custommode") = "edit" && !IsBlank(varRecord),EditForm(Form2),Param("custommode") = "view" && !IsBlank(varRecord),ViewForm(Form2),Set(varStartScreen,"NotFound")
)

and if all the If statement condition fails, i am setting a global variable named "varStartScreen" to NotFound to redirect the user to a not found screen.. but seems i can not define a Navigate inside the Onstart property, nor i can pass the global var from the Onstart to the StartScreen property.. so how i can do the redirect tot he NotFound screen in this case?

Thanks

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Building Power Apps

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v-bofeng-msft Microsoft Employee on at

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Hi @johnjohn123 :

Maybe you could try this solution:

Set the app's StartScreen property to:

If( !( Param("custommode") = "new" || (Param("custommode") = "edit" && !IsBlank(LookUp('Online Credit Request',ID = Value(Param("onlinecreditrequestid")))) || (Param("custommode") = "view" && !IsBlank(LookUp('Online Credit Request',ID = Value(Param("onlinecreditrequestid"))))) ), NotFoundScreen )

Best Regards,

Bof

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johnjohn123 3,506 on at

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@v-bofeng-msftthanks for the reply.. so you need i will need to add the same logic inside the OnStart as well? so i will have the same logic inside the App OnStart and inside the StartScreen properties?

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v-bofeng-msft Microsoft Employee on at

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Hi @johnjohn123 :

No, you don't need to modify the OnStart property, just keep it as it was.
Best Regards,

Bof

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