Thanks, Miyako,
So, this works:
//form method
Case of
:(Form event=On Load <https://doc.4d.com/4Dv17/index.en.html>)
Form <https://doc.4d.com/4Dv17/4D/17/Form.301-3730839.en.html>.meta:=New
object <https://doc.4d.com/4Dv17/4D/17.5/New-object.301-5256690.en.html>
End case
//Color method, bound by assigning color method to meta info expression in
listbox properties
C_OBJECT($0; Object)
If(This <https://doc.4d.com/4Dv17/4D/17.5/This.301-5255880.en.html>.ID>5) //ID
is an attribute of collection objects/entities
// to set a specific column row cell green background, works without defining
Form.meta on load
ob set($Object;”cell;”New Object(Column8”;New Object(‘fill;”green”)
$0:= Object
// to set stroke color orange to the row, works without defining Form.meta on
load
$0:=new object(“stroke”;”orange”)
// OR to set the stroke orange to the row
$0:=Form.meta.stroke=“orange"
End if
> On Aug 10, 2021, at 9:14 AM, Keisuke Miyako via 4D_Tech
> <4d_tech@lists.4d.com> wrote:
>
> I activated on display detail.
>
> activating On Display Detail is optional. it is not required for Meta Exp. to
> work.
>
> but your Color method is wrong.
>
> you basically need as many meta objects as the number of different colour
> combinations to display at the same time.
> in your code you have just one meta (Form.meta) so you have a palette of one.
> meta objects don't stick on screen, if you assign a new value to Form.meta it
> will change all cells that lookup the same meta.
>
> 2021/08/10 23:43、Michael Ferguson via 4D_Tech
> <4d_tech@lists.4d.com<mailto:4d_tech@lists.4d.com>>のメール:
> I set Form.meta as the meta info expression in the listbox.On display detail
> I called my color method which returns an object to the on display event.
>
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