Use the & "and" operators in Object Attributes of mxml

 

For example:

 

 
  <MX: LabelText= "Test"Visible= "{Boolvar1 & boolvar2 }"/>
 

 

An error is returned:-> the entity name must immediately follow the '&' in the Entity
Reference.

The correct syntax is as follows:-> use the full qualifier of the relevant characters in HTML.

 

  <MX: LabelText= "Test"Visible= "{Boolvar1 & A m p; boolvar2 }"/>// Remove the spaces in the middle of the AMP. Because I do not add spaces, the page will be parsed &
 

 

Appendix:

 
The most comprehensive list of special HTML characters