Button DisplayMode Condition

[mschechter1]

Hi, 

We are building an app for approvals & we would like to make a button disappear based on whether the user had created the request. 

Current (working) code:

DisplayMode: If(DataSourceInfo([@'Access Request'], DataSourceInfo.EditPermission),DisplayMode.Edit, DisplayMode.Disabled)

What we'd like to do (tried several variations, all fail):

DisplayMode: If((DataSourceInfo([@'Access Request'], DataSourceInfo.EditPermission)) && (ThisItem.'Created By'.Email = User().Email), DisplayMode.Edit, DisplayMode.Disabled)

What are we doing wrong? Specifically, the "ThisItem" parameter does not parse when combined with the first condition, but the condition works fine on its own.

Thanks

M

[RandyHayes · Accepted solution]

@mschechter1 

ThisItem is only allowed in context to a parent container with table Items.  ex.  A Gallery, a Form, etc.

My guess is that your Button is outside of a Gallery or Form.

You'll either need this inside one of the above, or you will need to reference the item outside - example, for a Gallery:

If(
    DataSourceInfo([@'Access Request'], DataSourceInfo.EditPermission) && 
    Gallery1.Selected.'Created By'.Email = User().Email), 
    DisplayMode.Edit, 
    DisplayMode.Disabled
)

I hope this is helpful for you.

[mschechter1]

This was the push I needed! Thanks! 

Here's the working code: 

If(
    (DataSourceInfo([@'Access Request'], DataSourceInfo.EditPermission) && 
    BrowseGallery1.Selected.'Created By'.Email = User().Email), 
    DisplayMode.Edit, 
    DisplayMode.Disabled
)

Thanks again! 

As a follow up (not sure if I need a new thread for this): how can I hide the button if the condition is not met?  

[RandyHayes]

@mschechter1 

If you want that to make a button not visible, then use that formula in the Visible property of the control.

With this slight modification:

!(
  DataSourceInfo([@'Access Request'], DataSourceInfo.EditPermission) && 
  BrowseGallery1.Selected.'Created By'.Email = User().Email)
)