How to reference and act on a dynamically created ListBox?

unknown

Hello,

I needed to build a GUI that was capable of adding and removing ListBox entries with a simple button click.

I managed to figure out how to add ListBox/button (wrapped in an HListBox) pairs dynamically using the script below, but I am not sure how to reference them for the delete button.

NewWindow("WINDOW_NAME", << Modal,

OutlineBox("OUTLINE_NAME",

  test_lb = VListBox(

   ButtonBox("Add",

    test_lb << Append(

     HListBox(

      OutlineBox("TEST_INSTANCE_" || Char(Today())),

      ButtonBox("Remove" //somehow remove only the current HListBox object

      ) 

     )

   

    )

  

   ),

   ButtonBox("OK")

  )

)

);

Wendy_Murphrey

Hi, Jason.

 

The following example demonstrates how to use a function to self-reference the ButtonBox and then delete the parent in the Remove button:

 

 

New Window( "WINDOW_NAME",
&nbsp; <<Modal,
&nbsp; Outline Box( "OUTLINE_NAME",
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; test_lb = V List Box(
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Button Box( "Add",
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; test_lb << Append(
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; H List Box(
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Outline Box( "TEST_INSTANCE_" || Char( Today() ) ),
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Button Box( "Remove", <<Set Function( Function( {this}, (this << Parent) << Delete ) ) )
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ),
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Button Box( "OK" )
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )
&nbsp; )
);

 

I hope that helps!

 

Wendy