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Restrict access to screen

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Posted on by StuartSmith

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I have a sharepoint list called "Users" with 2 columns "Name (People type)" and "Role (Choice Type)". The rows are then peoples names and for the "Role" column, "User" or "Admin".

How can I restrict a screen so that only "Admin" can access it? I have watched and read lots of stuff on the web, but cant find anything to help me with my scenario.

How can i achieve the above? Thanks in advance.

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Building Power Apps

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Drrickryp Super User 2024 Season 1 on at

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@StuartSmith

In the OnStart property of the app,

Set(UserName, User().FullName);

Set(UserRole,Lookup(Users, Name.Value=UserName).Role.Value

Assuming the screen is named Screen1,

Have a button or icon on any other screen where you want an admin to be able to access Screen1

set its OnVisible property to UserRole="Admin" and its OnSelect property to Navigate(Screen1)

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StuartSmith 225 on at

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Thanks for getting back to me so quickly.
For the code: Set(UserRole,Lookup(Users, Name.Value=UserName).Role.Value) i get the below error...
and then the question about a button or icon, I already have a menu bar on all the screens showing an "Administration" buttons. Is is possible to keep it visible and have it disabled if "User" and enabled if "Admin".

Thanks in advance

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Drrickryp Super User 2024 Season 1 on at

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@StuartSmith

The error is because you already have context variables with the same name as the global variables. In any event, if you have a way of assigning the role to the user of the app using a variable like varRole, then you can use the DisplayMode property of the button: If(varRole="Admin",Edit,Disabled)

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StuartSmith 225 on at

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Sorry, fairly new to Power Apps so unsure what you mean about why I am getting the error. How can I fix it as would really like to restrict access to the "Admin" screen.

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